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  • 151.
    Thulin, Mats
    Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Evolution, Genomics and Systematics, Systematic Botany.
    Expansion of Crabbea (Acanthaceae) and the description of two new species from Somalia2004In: Nordic Journal of Botany, ISSN 0107-055X, E-ISSN 1756-1051, Vol. 24, no 5, p. 501-506Article in journal (Refereed)
    Abstract [en]

    Crabbea is expanded to include the monotypic Golaea and Acanthostelma, both endemic in northern Somalia. The new combinations C. migiurtina (=Golaea migiurtina) and C. thymifolia (=Acanthostelma thymifolium) are made and the names are lectotypified. The new species C. pinnatifida and C. albolutea, both endemic in Somalia, are described and illustrated.

  • 152.
    Thulin, Mats
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Faculty of Science and Technology, Department of Evolution, Genomics and Systematics. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Faculty of Science and Technology, Department of Evolution, Genomics and Systematics, Systematic Botany. Systematisk botanik.
    Flora of Somalia: volume 32006Book (Refereed)
  • 153.
    Thulin, Mats
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Faculty of Science and Technology, Department of Evolution, Genomics and Systematics. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Faculty of Science and Technology, Department of Evolution, Genomics and Systematics, Systematic Botany. Avd f systematisk botanik.
    Horn of Africa2005In: Hotspots revisited, CEMEX , 2005, p. 276-283Chapter in book (Refereed)
  • 154.
    Thulin, Mats
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Faculty of Science and Technology, Department of Evolution, Genomics and Systematics. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Faculty of Science and Technology, Department of Evolution, Genomics and Systematics, Systematic Botany. Systematisk botanik.
    Lobeliaceae2007In: Flora of Ethiopia and Eritrea: vol. 5, Addia Ababa/Uppsala , 2007, p. 39-48Chapter in book (Refereed)
  • 155.
    Thulin, Mats
    Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Evolution, Genomics and Systematics, Systematic Botany.
    New species of Boswellia and Commiphora (Burseraceae) from Somalia2006In: Nordic Journal of Botany, ISSN 0107-055X, E-ISSN 1756-1051, Vol. 24, no 4, p. 373-376Article in journal (Refereed)
    Abstract [en]

    The new species Boswellia globosa, from the foothills of the limestone escarpment along the Gulf of Aden in northern Somalia, and Commiphora lacerata, from a rocky limestone slope near the coast of the Indian Ocean in north-eastern Somalia, are described and illustrated.

  • 156.
    Thulin, Mats
    Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Evolution, Genomics and Systematics, Systematic Botany.
    New species of Tephrosia (Fabaceae) from Somalia and Yemen2004In: Nordic Journal of Botany, ISSN 0107-055X, E-ISSN 1756-1051, Vol. 24, no 5, p. 513-517Article in journal (Refereed)
    Abstract [en]

    The new species Tephrosia flava, from limestone areas in north-eastern Somalia, and T mahrana, from wadis in the deserts of south-eastern Yemen, are described and illustrated.

  • 157.
    Thulin, Mats
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Faculty of Science and Technology, Department of Evolution, Genomics and Systematics. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Faculty of Science and Technology, Department of Evolution, Genomics and Systematics, Systematic Botany. Avd f systematisk botanik.
    Notes on Convolvulus, Astripomoea, Ipomoea and Merremia (Convolvulaceae) from the Horn of Africa2005In: Nordic Journal of Botany, ISSN 0107-055X, Vol. 23, no 5, p. 629-640Article in journal (Refereed)
  • 158.
    Thulin, Mats
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Faculty of Science and Technology, Department of Evolution, Genomics and Systematics. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Faculty of Science and Technology, Department of Evolution, Genomics and Systematics, Systematic Botany. Avdelningen för systematisk botanik.
    Notes on Pluchea (Asteraceae) in Somalia and Ethiopia2004In: Nordic Journal of Botany, Vol. 22, p. 659-666Article in journal (Refereed)
  • 159.
    Thulin, Mats
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Faculty of Science and Technology, Department of Evolution, Genomics and Systematics. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Faculty of Science and Technology, Department of Evolution, Genomics and Systematics, Systematic Botany. Avd f systematisk botanik.
    Phyllanthus xylorrhizus (Phyllanthaceae), a new species from Somalia2005In: Nordic Journal of Botany, ISSN 0107-055X, Vol. 23, no 4, p. 385-387Article in journal (Refereed)
  • 160.
    Thulin, Mats
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Faculty of Science and Technology, Department of Evolution, Genomics and Systematics. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Faculty of Science and Technology, Department of Evolution, Genomics and Systematics, Systematic Botany. Systematisk botanik.
    Sphenocleaceae2007In: Flora of Ethiopia and Eritrea: vol. 5, Addis Ababa/Uppsala , 2007, p. 37-38Chapter in book (Refereed)
  • 161.
    Thulin, Mats
    Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Evolution, Genomics and Systematics, Systematic Botany.
    Synopsis of Satanocrater (Acanthaceae)2006In: Nordic Journal of Botany, ISSN 0107-055X, E-ISSN 1756-1051, Vol. 24, no 4, p. 385-388Article in journal (Refereed)
    Abstract [en]

    Four species are recognized in the tropical African genus Satanocrater: S. fellatensis (= S. berhautii) in Sudan, Ethiopia and Guinea, S. ruspolii in Ethiopia, Somalia and Kenya, S. somalensis (= S. coccineus) in Ethiopia and Somalia, and S. paradoxus in Ethiopia, Somalia and Kenya. Three lectotypes and one neotype are selected. A key to the species and an illustration of S. ruspolii are provided.

  • 162.
    Thulin, Mats
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Faculty of Science and Technology, Department of Evolution, Genomics and Systematics. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Faculty of Science and Technology, Department of Evolution, Genomics and Systematics, Systematic Botany. Avdelningen för systematisk botanik.
    The identity of Statice maurocordatae (Plumbaginaceae)2004In: Kew Bulletin, Vol. 59, p. 163-164Article in journal (Refereed)
  • 163.
    Thulin, Mats
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Faculty of Science and Technology, Department of Evolution, Genomics and Systematics. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Faculty of Science and Technology, Department of Evolution, Genomics and Systematics, Systematic Botany. Avd f systematisk botanik.
    Three new species of Chascanum (Verbenaceae) and notes on the genus in the Horn of Africa region2005In: Nordic Journal of Botany, ISSN 0107-055X, Vol. 23, no 5, p. 513-517Article in journal (Refereed)
  • 164.
    Thulin, Mats
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Faculty of Science and Technology, Department of Evolution, Genomics and Systematics. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Faculty of Science and Technology, Department of Evolution, Genomics and Systematics, Systematic Botany. Avd f systematisk botanik.
    Three new species of Heliotropium (Boraginaceae) from the Horn of Africa region2005In: Nordic Journal of Botany, ISSN 0107-055X, Vol. 23, no 5, p. 527-532Article in journal (Refereed)
  • 165.
    Thulin, Mats
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Faculty of Science and Technology, Department of Evolution, Genomics and Systematics. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Faculty of Science and Technology, Department of Evolution, Genomics and Systematics, Systematic Botany. Avd f systematisk botanik.
    Two new species of Dyschoriste (Acanthaceae) from Somalia2005In: Nordic Journal of Botany, ISSN 0107-055X, Vol. 23, no 5, p. 519-522Article in journal (Refereed)
  • 166.
    Thulin, Mats
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Faculty of Science and Technology, Department of Evolution, Genomics and Systematics. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Faculty of Science and Technology, Department of Evolution, Genomics and Systematics, Systematic Botany. Avdelningen för systematisk botanik.
    Bremer, Birgitta
    Studies in the tribe Spermacoceae (Rubiaceae-Rubioideae): the circumscriptions of Amphiasma and Pentanopsis and the affinities of Phylohydrax2004In: Plant Systematics and Evolution, Vol. 247, p. 233-239Article in journal (Refereed)
  • 167.
    Thulin, Mats
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Faculty of Science and Technology, Department of Evolution, Genomics and Systematics. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Faculty of Science and Technology, Department of Evolution, Genomics and Systematics, Systematic Botany. Avdelningen för systematisk botanik.
    Lavin, Matt
    Pasquet, Remy
    Delgado-Salinas, Alfonso
    Phylogeny and biogeography of Wajira (Leguminosae): a monophyletic segregate of Vigna centered in the Horn of Africa region2004In: Systematic Botany, Vol. 29, p. 903-920Article in journal (Refereed)
  • 168.
    Thulin, Mats
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Faculty of Science and Technology, Department of Evolution, Genomics and Systematics. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Faculty of Science and Technology, Department of Evolution, Genomics and Systematics, Systematic Botany. Avdelningen för systematisk botanik.
    Manktelow, Stephen
    Three new species of Chassalia (Rubiaceae) from the Eastern Arc Mts, Tanzania2004In: Nordic Journal of Botany, Vol. 23, p. 183-190Article in journal (Refereed)
  • 169.
    Tibell, L.
    Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Evolution, Genomics and Systematics, Systematic Botany.
    Cyphelium lucidum new to Sweden2007In: Graphis Scripta, ISSN 0901-7593, Vol. 19, no 2, p. 48-52Article in journal (Refereed)
  • 170.
    Tibell, L.
    Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Evolution, Genomics and Systematics, Systematic Botany.
    Mycocalicium2007In: Lichen Flora of the Greater Sonoran Desert Region, vol. 3 / [ed] Thomas H Nash; Corinna Gries; Frank Bungartz, Tempe: Lichens Unlimited, Arizona State University , 2007Chapter in book (Refereed)
  • 171.
    Tibell, Leif
    Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Evolution, Genomics and Systematics, Systematic Botany.
    Calicium in the Indian Himalayas2006In: Journal of the Hattori Botanical Laboratory, ISSN 0073-0912, no 100, p. 809-851Article in journal (Refereed)
    Abstract [en]

    A revision of 15 species of the lichen genus Calicium in the Indian Himalayas is presented. Six species-C. indicum, C. laevigatum, C. nobile, C pyriforme, C. tenuisporum and C. verrucosum-are described as new to science. Furthermore C. chlorosporum, C. hyperelloides and C. quercinum are new to India. Material from other parts of the Himalayas was also studied. Most Calicium species occur in the temperate mixed oak-conifer forest on the S face of the mountains, particularly at altitudes between 2500 and 3600m, where they inhabit bark of the lower parts of old trees and decorticated stumps, particularly in forests dominated by Quercus semecarpifolia or in mixed forests with Q. semecarpifolia and Abies pindrow, Tsuga dumosa and Picea. Descriptions of the species are supplied along with information on secondary product chemistry and habitat ecology. The ornamentation of the spores is described for the new species. An identification key to the species is provided. In a molecular phylogeny based on nuclear rDNA ITS1-5.8S-ITS2 sequences the new species appeared in different lineages in the paraphyletic Calicium, viz. C. pyriforme and C. verrucosum in the 'Caticium glaucellum-clade', C. indicum, C. laevigatum and C. tenuisporum in the 'Calicium viride-clade' and C. nobile in the 'Acolium-clade'. For each species 'Signature Sequences Stretches' ('SSS', usually 8-20 bp long), have been identified. They are-as far as known-unique to the species in relation to other Calicium species and species in related genera. They may hence serve as molecular markers for identifying the species. Forty new ITS sequences are reported.

  • 172.
    Tibell, Leif
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Evolution, Genomics and Systematics. Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Evolution, Genomics and Systematics, Systematic Botany. Systematisk Botanik.
    Beck, Andreas
    Morphological variation, photobiont association and ITS phylogeny of Chaenotheca phaeocephala and C. subroscida (Coniocybaceae, lichenized ascomycetes)2002In: Nord. J. Bot., Vol. 21, p. 651-660Article in journal (Refereed)
    Abstract [en]

    C. phaeocephala and C. subroscida have been characterized by differences in their morphology and ecology. They are, however, morphologically plastic and sometimes seem to intergrade. It has been suspected that the differences in morphology between these two taxa could possibly be phenotypic and caused by their occurrence in different habitats and/or by the association with different photobionts. To test if there is a genetic difference between the species ITS1-5.8S-ITS2 rDNA sequences of six specimens of the mycobiont of C. phaeocephala and five of C. subroscida were compared. Further the ITS1-5.8S-ITS2 rDNA sequences of the photobiont of one specimens of C. phaeocephala and sixof C. subroscida were compared to each other and to other species of Trebouxia. The mycobiont sequences of both C. phaeocephala and C. subroscida were monophyletic, substantially different and the groups had strong supports. They also proved to be associated with different Trebouxia species, C. phaeocephala with T. arboricola and Chaenotheca subroscida with T. jamesii. The morphologically based concepts of C. phaeocephala and C. subroscida thus not merely represent phenotypic variation but also are associated with considerable genetic differences in the extremes of the ITS1-5.8S-ITS2 rDNA region.

  • 173.
    Tibell, Leif
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Faculty of Science and Technology, Department of Evolution, Genomics and Systematics. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Faculty of Science and Technology, Department of Evolution, Genomics and Systematics, Systematic Botany.
    Vinuesa, Maria
    Chaenothecopsis in a molecular phylogeny based on nuclear rDNA ITS and LSU sequences2005In: Taxon, Vol. 54, p. 427-442Article in journal (Refereed)
  • 174. Tibuhwa, Donatha
    et al.
    Buyck, Bart
    Kivaisi, Amelia
    Tibell, Leif
    Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Evolution, Genomics and Systematics, Systematic Botany.
    Cantharellus fistulosus sp nov from Tanzania2008In: Cryptogamie Mycologie, ISSN 0181-1584, E-ISSN 1776-100X, Vol. 29, no 2, p. 129-135Article in journal (Refereed)
    Abstract [en]

    Cantharellus fistulosus sp. nov from Tanzania is described as a close relative to C. schmitzii from tropical miombo woodland dominated by tree species in Brachystegia, Julbernardia and Isoberlinia. The species is characterised by having a hollow, smooth stipe and a pink hymenium that contrasts with the yellowish brown stipe and cap surface.

  • 175. Venter, H. J. T.
    et al.
    Thulin, Mats
    Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Evolution, Genomics and Systematics, Systematic Botany.
    Verhoeven, R. L.
    Two new species of Cryptolepis (Apocynaceae: Periplocoideae) from Somalia, North-east Africa2006In: South African Journal of Botany, ISSN 0254-6299, E-ISSN 1727-9321, Vol. 72, no 1, p. 139-143Article in journal (Refereed)
    Abstract [en]

    Two new species, Cryptolepis nugaalensis and Cryptolepis somaliensis are described. Both were discovered in and environment in Somalia. Both belong to a unique group of xerophytic, mostly shrub-like species in the Horn of Africa, island of Socotra and southern Arabia, isolated from the rest of the genus.

  • 176.
    Vinnersten, Annika
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Evolution, Genomics and Systematics, Systematic Botany.
    Manning, John
    A new classification of Colchicaceae2007In: Taxon, ISSN 0040-0262, E-ISSN 1996-8175, Vol. 56, no 1, p. 171-178Article in journal (Refereed)
    Abstract [en]

    A recent molecular study of Colchicaceae showed four of the 19 genera and two of the five tribes to be paraphyletic. The genus Colchicum is nested within Androcymbium, Onixotis constitutes a grade between Neodregea and Wurmbea, Gloriosa is intermixed with species of Littonia, and Burchardia forms a grade sister to the rest of the family. The current classification of Colchicaceae is discussed and a revised classification is presented, based on the primary principle of monophyly. The recognition of subfamily Wurmbaeoideae for the cormous genera results in a paraphyletic Uvularioideae unless a further two or three subfamilies are recognized among the rhizomatous members of the family. This is not justified in such a small family. A revised tribal taxonomy is presented, recognizing six morphologically diagnosable, monophyletic clades at tribal level. The tribes were defined to maximize nomenclatural and taxonomic stability. Three emended tribes, Anguillarieae, Colchiceae and Iphigenieae, are recognized in the wurmbaeoid clade. The uvularioid grade is divided into Uvularicae and two new tribes, Burchardieae and Tripladenieae. The genus Burchardia is probably paraphyletic and further tribes may be required to accommodate segregates pending analysis of all species in the genus. The genera Neodregea and Onixotis are included within a widened circumscription of Wurmbea, defined by an ebracteate, spiciform inflorescence and three leaves. The genus Littonia is included within an expanded Gloriosa, distinguished by a stoloniferous corm, opposite or verticillate lower leaves, yellow to orange flowers, and more or less fleshy seeds. The necessary new combinations in these two genera are provided.

  • 177.
    Voglmayr, Hermann
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Evolution, Genomics and Systematics, Systematic Botany.
    Constantinescu, Ovidiu
    Uppsala University, Museums etc., Museum of Evolution. Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Evolution, Genomics and Systematics, Systematic Botany.
    Revision and reclassification of three Plasmopara species based on morphological and molecular phylogenetic data2008In: Mycological Research, ISSN 0953-7562, E-ISSN 1469-8102, Vol. 112, no 5, p. 487-501Article in journal (Refereed)
    Abstract [en]

    Based on the results of morphological and DNA sequence (partial D1–D3/D7–D8 nuLSU and partial nuSSU-ITS1-5.8S rDNA) data, three species of Plasmopara are revised and reclassified. A species of Plasmopara parasitic on Scorzonera, invalidly published several times, is assigned to a new genus and species under Novotelnova scorzonerae. Plasmopara euphrasiae sp. nov. is segregated from P. densa, and P. centaureae-mollis is revised and relegated to synonymy of Bremia centaureae. All taxa are described and illustrated.

  • 178.
    Wedén, Christina
    Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Evolution, Genomics and Systematics, Systematic Botany.
    Black Truffles of Sweden: Systematics, Population Studies, Ecology and Cultivation of Tuber aestivum syn. T. uncinatum2004Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    Tuber aestivum is an ectomycorrhizal ascomycete with underground fruit bodies. It is an economically important species, but has been regarded as endangered in Sweden. My inventory has increased the number of reported localities from 3 to 31.

    It has long been debated whether T. aestivum and T. uncinatum are conspecific or not, so a clarification would help conservation biology and cultivation. My study included 117 fruit bodies of both taxa from 8 countries. The phylogenetic (ITS) and microscopic analyses showed that the two taxa were synonyms and that the spore reticulum height, used to separate the taxa, is not diagnostic. T. aestivum was clearly different from T. mesentericum, which I reported new to Sweden.

    The Gotland T. aestivum population was genetically distinct (RAPD) from other European specimens. The genetic variation suggested sexual reproduction. The habitat of 18 T. aestivum sites on Gotland were analysed and compared with data from France. No striking functional differences in soil chemistry were found, so a possible T. aestivum ecotype on Gotland would rather be an adaptation to the colder and drier climate. Selecting local T. aestivum inoculum for truffle orchards in Northern Europe could be important for successful truffle production.

    In 1999, 10 experimental truffle orchards with a total of 240 oak and hazel seedlings were established on Gotland, and as a result of this project 3000 commercial oak seedlings were planted in 2000-2001. In 2004, T. aestivum mycorrhiza was still present in all of the 22 orchards studied on Gotland, some in soils different from natural habitats. In addition, the project has also generated a truffle cultivation association, a truffle company, truffle dog breeding and export of T. aestivum to France.

    List of papers
    1. Species recognition in the truffle genus Tuber: the synonyms Tuber aestivum and Tuber uncinatum
    Open this publication in new window or tab >>Species recognition in the truffle genus Tuber: the synonyms Tuber aestivum and Tuber uncinatum
    2005 (English)In: Environmental Microbiology, ISSN 1462-2912, E-ISSN 1462-2920, Vol. 7, no 10, p. 1535-1546Article in journal (Refereed) Published
    Abstract [en]

    The two morphologically similar truffles Tuber aestivum and T. uncinatum have caused confusion because T. uncinatum is regarded by different authors, as either a distinct species, variety, subspecies, or synonym of T. aestivum. A clarification of the relationship between the two truffles would help both conservation biology and cultivation. We aimed both to test the reliability of the only quantitative morphological character used to distinguish the two taxa, i.e. the height of the spore reticulum, and to compare sequences of the ribosomal DNA (rDNA) internal transcribed spacer (ITS) region. Our study included 117 fruit bodies of T. aestivum and T. uncinatum, originating from eight European countries. The results showed that the spore reticulum height is not diagnostic. The phylogenetic analysis of ITS sequences from 81 fruit bodies and an additional 32 sequences from GenBank showed that T. aestivum and T. uncinatum were intermingled in one highly supported (100% bootstrap) monophyletic clade, separate from its sister species Tuber mesentericum. We conclude that T. aestivum and T. uncinatum are synonyms and the species should be named T. aestivum, as the oldest name has priority. For traders, T. aestivum syn. T. uncinatum should be used until conformity has been reached.

    National Category
    Biological Systematics
    Identifiers
    urn:nbn:se:uu:diva-92400 (URN)10.1111/j.1462-2920.2005.00837.x (DOI)16156727 (PubMedID)
    Available from: 2004-11-05 Created: 2004-11-05 Last updated: 2018-03-29Bibliographically approved
    2.
    The record could not be found. The reason may be that the record is no longer available or you may have typed in a wrong id in the address field.
    3. Tuber aestivum syn. T. uncinatum biotopes and their history on Gotland, Sweden
    Open this publication in new window or tab >>Tuber aestivum syn. T. uncinatum biotopes and their history on Gotland, Sweden
    2004 (English)In: Mycological Research, ISSN 0953-7562, Vol. 108, no 3, p. 304-310Article in journal (Refereed) Published
    Identifiers
    urn:nbn:se:uu:diva-92402 (URN)
    Available from: 2004-11-05 Created: 2004-11-05 Last updated: 2009-04-02Bibliographically approved
    4. Cultivation of the Burgundy truffle, Tuber aestivum syn. T. uncinatum in Sweden
    Open this publication in new window or tab >>Cultivation of the Burgundy truffle, Tuber aestivum syn. T. uncinatum in Sweden
    (English)Manuscript (Other (popular science, discussion, etc.))
    Identifiers
    urn:nbn:se:uu:diva-92403 (URN)
    Available from: 2004-11-05 Created: 2004-11-05 Last updated: 2010-01-14Bibliographically approved
  • 179.
    Wedén, Christina
    Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Evolution, Genomics and Systematics, Systematic Botany.
    Research on Choiromyces venosus — a new delicacy?2007In: Opera Mycologica, ISSN 1654-5079, Vol. 1, p. 42-49Article in journal (Other academic)
  • 180.
    Wedén, Christina
    et al.
    systematisk biologi. Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Evolution, Genomics and Systematics, Systematic Botany.
    Backlund, Anders
    Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Evolution, Genomics and Systematics, Systematic Botany. Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Pharmacy, Department of Medicinal Chemistry, Division of Pharmacognosy.
    Danell, Eric
    Uppsala University, Music and Museums, Museum of Evolution. botansiska sektionen. Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Evolution, Genomics and Systematics, Systematic Botany.
    Stjärnhovstryffel - Släktet Choiromyces i Sverige och Europa2007In: Systematikdagarna 2007: Lund 28-29 november, 2007Conference paper (Other academic)
    Abstract [sv]

    Forskning om tryffeln på Gotland och odling av Tuber aestivum startades 1997. Ett grundläggande arbete var att genetiskt och morfologiskt visa att T. aestivum och det i Frankrike använda namnet T. uncinatum är synonyma, trots tidigare hävdade morfologiska och genetiska skillnader. Intresse finns idag att odla tryffel även på det svenska fastlandet. Tryffelodling innebär plantering av ympade trädplantor av ex. ek och hassel. På det svenska fastlandet växer Choiromyces venosus (stjärnhovstryffel), en intressant kandidat för utveckling av tryffelodling. Till skillnad från T. aestivum som växer på Gotland och Öland, har stjärnhovstryffeln ätits av lokalbefolkningen i mer än hundra år i Sverige, men mycket lite är känt om dess ekologi och biologi. Den är även en uppskattad delikatess i ex. Tyskland och Ungern, medan den i Frankrike och Italien anses giftig. I det pågående forskningsprojektet ämnar vi undersöka systematik, ekologi, vitamininnehåll, kemi och möjlighet till odling av stjärhovstryffeln. Släktet Choiromyces är dåligt utrett i Europa. Choiromyces venosus och C. meandriformis används som synonymer, ibland också C. gangliiformis. Nyinsamlat- och herbariematerial från Sverige och Europa kommer att studeras morfologiskt, genetiskt (DNA) och kemiskt för att utreda systematik och möjliga fylogenetiska kopplingar till dess påstådda giftighet i södra Europa.

  • 181.
    Wedén, Christina
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Faculty of Science and Technology, Department of Evolution, Genomics and Systematics. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Faculty of Science and Technology, Department of Evolution, Genomics and Systematics, Systematic Botany. Systematisk Botanik.
    Chevalier, Gérard
    Danell, Eric
    Uppsala University, Museums etc., Museum of Evolution. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Faculty of Science and Technology, Department of Evolution, Genomics and Systematics, Systematic Botany. Botanik.
    Characterisation of Tuber aestivum syn. T. uncinatum biotopes and their history on Gotland2004In: Mycological Research, ISSN 0953-7562, Vol. 108, no 3, p. 304-310Article in journal (Refereed)
    Abstract [en]

    This study aimed at testing the hypothesis that the genetically distinct Tuber aestivum population on the island of Gotland, Sweden, is adapted to habitats different from French T. aestivum populations. The soil structure, soil chemistry, bedrock, climate, vegetation and host tree continuity of 18 T. aestivum sites on Gotland were analysed and compared with data from France. We conclude that T. aestivum can grow in soils with a broad soil structure range and that no striking differences in soil chemistry were found. No T. aestivum indicator plants other than the host trees were found, but the host tree continuity on the T. aestivum sites on Gotland was more than 300 yr. If the T. aestivum population on Gotland constitutes an ecotype it is rather an adaptation to the colder and drier climate on Gotland. Selecting local T. aestivum inoculum for truffle orchards in northern Europe could be important for successfull truffle production.

  • 182.
    Wedén, Christina
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Evolution, Genomics and Systematics, Systematic Botany.
    Chevalier, Gérard
    Danell, Eric
    Tuber aestivum syn. T. uncinatum biotopes and their history on Gotland, Sweden2004In: Mycological Research, ISSN 0953-7562, Vol. 108, no 3, p. 304-310Article in journal (Refereed)
  • 183.
    Wedén, Christina
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Evolution, Genomics and Systematics, Systematic Botany.
    Danell, Eric
    Uppsala University, Museums etc., Museum of Evolution. Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Evolution, Genomics and Systematics, Systematic Botany.
    The first cultivated truffle in Scandinavia produced on Gotland2007In: Svensk Botanisk Tidskrift, ISSN 0039-646X, Vol. 101, no 5, p. 289-291Article in journal (Other academic)
    Abstract [en]

    On the 29th of November 2005 the Swedish-trained truffle dog Biscuit found the first cultivated truffle in Scandinavia on the island of Gotland, Sweden. The truffle orchard at Mulde, Fröjel parish, is one of ten orchards established on Gotland in 1999 by the Swedish truffle research project in cooperation between Gotland University and Uppsala University. Each orchard harbours 12 oak seedlings (Quercus robur) and 12 hazel seedlings (Corylus avellana) inoculated with the Burgundy truffle Tuber aestivum syn. T. uncinatum by the French truffle nurseries Agri-truffe and Robin pépinères. The truffle was found a few centimetres below the earth surface, 20 centimetres from the trunk of an oak tree. It had mature spores and weighed 15 g. The finding of the first cultivated truffle six years after planting the orchard is comparable with French results and promising for the future establishment of new oak and hazel biotopes for truffle cultivation in Scandinavia.

  • 184.
    Wedén, Christina
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Evolution, Genomics and Systematics, Systematic Botany.
    Danell, Eric
    Uppsala University, Music and Museums, Museum of Evolution. botaniska sektionen. Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Evolution, Genomics and Systematics, Systematic Botany.
    Backlund, Anders
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Pharmacy, Department of Medicinal Chemistry, Division of Pharmacognosy.
    Jägerstad, Margaretha
    Systematics, ecology, pharmacognosy, vitamin content and cultivation of Choiromyces in Sweden2007In: The fifth international workshop of edible mycorrhizal mushrooms, 2007Conference paper (Other academic)
    Abstract [en]

    In spite of a world market for mushrooms estimated at 5 million tonnes, and in spite of fungi being six times richer in species than plants, and in spite of the demand for functional foods, research on edible and medicinal mushrooms has been neglected in Sweden. Our Tuber aestivum (syn. T. uncinatum) truffle project on the Swedish island of Gotland has been scientifically and economically a success. Since landowners familiar with Choiromyces truffles in Sweden have urged for research, we intend to illuminate the following questions: Are there one or several species in Europe? What are the preferred mycorrhizal hosts, soils and climate? Can mycelium be cultivated in large scale? Is it possible to synthesise mycorrhiza and to establish truffle orchards? Does the Swedish Choiromyces contain any toxic or anti-inflammatory substances? Could Choiromyces be an important source of vitamins?

    From 2006 we have confirmed three new localities for Choiromyces venosus in Sweden, using a trained truffle dog to find the mature fruit bodies. By using the dog, completely hypogeous, mature fruit bodies were found in contrast to the former observations that mature fruit bodies always protrude up through the soil surface. We have pure cultures of C. venosus growing on modified Fries media, confirmed by PCR.

    This project combines basic and applied research with the aim to create a new cash crop and new products of benefit to rural economy and Swedish industry. The project also addresses important questions about the taxonomy and biology of a mushroom genus. A successful project may generate new plantations on the Swedish main land of benefit to rural economy and biodiversity, new export products similar to the Gotland project mentioned above and more research devoted at edible and medicinal mushrooms.

  • 185.
    Wedén, Christina
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Evolution, Genomics and Systematics, Systematic Botany.
    Danell, Eric
    Uppsala University, Music and Museums, Museum of Evolution.
    Camacho, Francisco J.
    Backlund, Anders
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Pharmacy, Department of Medicinal Chemistry, Division of Pharmacognosy.
    The population of the hypogeous fungus Tuber aestivum syn T. uncinatum on the island of Gotland2004In: Mycorrhiza, ISSN 0940-6360, E-ISSN 1432-1890, Vol. 14, no 1, p. 19-23Article in journal (Refereed)
    Abstract [en]

    The aim of our study was to examine the genetic variation within Tuber aestivum on the Baltic island of Gotland, Sweden. Variation in such a limited geographical area should help illuminate the dispersal abilities of T. aestivum. Knowledge of the genetic variation in this northern outpost could also be useful in the selection of inoculum for the establishment of truffle orchards. Genetic structure and homogeneity of the population were studied using principal component and parsimony analyses of randomly amplified polymorphic DNA data. Our inventories showed that T. aestivum is abundantly distributed in suitable habitats on Gotland. The genetic variation observed suggests sexual reproduction and slow dispersal on the island. It is possible that the present population was established from one introduction, which may be due to ability to survive in this habitat rather than to rare colonising events. The T. aestivum population on Gotland may be an ecotype adapted to the climate and soil conditions on the island.

  • 186.
    Wedén, Christina
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Evolution, Genomics and Systematics, Systematic Botany.
    Danell, Eric
    Uppsala University, Music and Museums, Museum of Evolution.
    Tibell, Leif
    Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Evolution, Genomics and Systematics, Systematic Botany.
    Species recognition in the truffle genus Tuber: the synonyms Tuber aestivum and Tuber uncinatum2005In: Environmental Microbiology, ISSN 1462-2912, E-ISSN 1462-2920, Vol. 7, no 10, p. 1535-1546Article in journal (Refereed)
    Abstract [en]

    The two morphologically similar truffles Tuber aestivum and T. uncinatum have caused confusion because T. uncinatum is regarded by different authors, as either a distinct species, variety, subspecies, or synonym of T. aestivum. A clarification of the relationship between the two truffles would help both conservation biology and cultivation. We aimed both to test the reliability of the only quantitative morphological character used to distinguish the two taxa, i.e. the height of the spore reticulum, and to compare sequences of the ribosomal DNA (rDNA) internal transcribed spacer (ITS) region. Our study included 117 fruit bodies of T. aestivum and T. uncinatum, originating from eight European countries. The results showed that the spore reticulum height is not diagnostic. The phylogenetic analysis of ITS sequences from 81 fruit bodies and an additional 32 sequences from GenBank showed that T. aestivum and T. uncinatum were intermingled in one highly supported (100% bootstrap) monophyletic clade, separate from its sister species Tuber mesentericum. We conclude that T. aestivum and T. uncinatum are synonyms and the species should be named T. aestivum, as the oldest name has priority. For traders, T. aestivum syn. T. uncinatum should be used until conformity has been reached.

  • 187.
    Wedén, Christina
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Evolution, Genomics and Systematics, Systematic Botany.
    Pettersson, Lina
    Danell, Eric
    Cultivation of the Burgundy truffle, Tuber aestivum syn. T. uncinatum in SwedenManuscript (Other (popular science, discussion, etc.))
  • 188.
    Wikström, Niklas
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Faculty of Science and Technology, Department of Evolution, Genomics and Systematics. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Faculty of Science and Technology, Department of Evolution, Genomics and Systematics, Systematic Botany.
    Pryer, Kathleen M
    Incongruence between primary sequence data and the distribution of a mitochondrial atp1 group II intron among ferns and horsetails2005In: Molecular Phylogenetics and Evolution, Vol. 36, no 484-493Article in journal (Refereed)
  • 189.
    Wikström, Niklas
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Faculty of Science and Technology, Biology, Department of Evolutionary Biology. Department of Evolution, Genomics and Systematics, Systematic Botany. Systematisk Botanik.
    Savolainen, Vincent
    Chase, Mark W.
    Angiosperm divergence times: congruence and incongruence between fossils and sequence divergence estimates2003In: Telling the Evolutionary Time: Molecular Clocks and the Fossil Record, Taylor & Francis , 2003, p. 142-165Chapter in book (Refereed)
    Abstract [en]

    The documentation of derived angiosperm lineages from increasingly older geological deposits, and growing evidence of considerable diversity in ower, seed, and pollen morphology in the mid-Cretaceous both imply that the timing of early angiosperm cladogenesis may be older then our current fossil-based estimates indicate. An alternative to fossils for calibrating the phylogenetic tree comes from divergence in DNA sequence data. Here, we report on an analysis using non-parametric rate smoothing and a three gene dataset covering c. 75 per cent of all angiosperm families recognized in recent classi cations. The results provide an initial hypothesis of angiosperm diversi cation times; by using an internal calibration point, an independent evaluation of angiosperm and eudicot origins is accomplished. Results are compared with fossil-based estimates of both magnolids and eudicot divergence times, and possible directions of future analyses are discussed.

  • 190. Williams, Cameron B.
    et al.
    Tibell, Leif
    Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Evolution, Genomics and Systematics, Systematic Botany.
    Calicium sequoiae, a new lichen species from north-western California, USA2008In: The Lichenologist, ISSN 0024-2829, E-ISSN 1096-1135, Vol. 40, no Part 3, p. 185-194Article in journal (Refereed)
    Abstract [en]

    We describe Calicium sequoiae as a new species of lichenized Ascomycota from northwestern California, USA. The species is distinguished morphologically from other known members of Calicium by its stalks that react I+ blue, mature ascospores that are ornamented with spiral ridges, and apothecia that produce prominent white pruina. It is also the only Calicium known to produce thamnolic acid as a major secondary substance. Sequences from the ITS-region showed C. sequoiae to be unique among calicioid Physciaceae, and phylogenetic analysis positioned it close to C. adspersum, C. chlorosporum, C. lenticulare, Cyphelium notarisii, and C. tigillare. Thus far, Calicium sequoiae has been collected only from old-growth redwood (Sequoia sempervirens) forests, where it occurred on thick, fibrous bark of large redwood trees. A key to the 12 species of Calicium known from the Pacific Northwest is provided.

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