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Grönroos, Roland
Publications (10 of 22) Show all publications
Ahlén, A., Ahlgren, B., Grönroos, R., Gunningberg, P., Hjort, K., Katardjiev, I., . . . Rydberg, A. (2008). Presentation of the VINN Excellence Center for Wireless Sensor Networks (WISENET). In: Conference on Radio Science (RVK08): . Paper presented at Conference on Radio Science (RVK08). Växjö
Open this publication in new window or tab >>Presentation of the VINN Excellence Center for Wireless Sensor Networks (WISENET)
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2008 (English)In: Conference on Radio Science (RVK08), Växjö, 2008Conference paper, Published paper (Refereed)
Place, publisher, year, edition, pages
Växjö: , 2008
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
Signal Processing
Identifiers
urn:nbn:se:uu:diva-111039 (URN)
Conference
Conference on Radio Science (RVK08)
Projects
wisenet
Available from: 2009-12-02 Created: 2009-12-02 Last updated: 2013-09-25Bibliographically approved
Gunningberg, P., Grönroos, R., Katardjiev, I., Voigt, T., Ahlén, A., Hjort, K. & Rydberg, A. (2007). WISENET Wireless Sensor Networks VINN Excellence Center.
Open this publication in new window or tab >>WISENET Wireless Sensor Networks VINN Excellence Center
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2007 (English)Other (Other academic)
Abstract [en]

This broschure was produced for the inauguration of WISENET December 7, 2007. It decribes the future impact of WISENET, application areas and the 10 partners. The three research areas "Node Integration & Energy", "Networkning & Security" and "Wireless Communication" is briefly described as well as the application projects in "Water Sensing" and "Transport".

Publisher
p. 20
Keywords
wisenet, sensors, radio communication, micro structures, networking
National Category
Engineering and Technology Information Systems
Research subject
Computer Science with specialization in Computer Communication; Electrical Engineering with specialization in Signal Processing
Identifiers
urn:nbn:se:uu:diva-15947 (URN)
Projects
wisenet
Available from: 2008-06-09 Created: 2008-06-09 Last updated: 2018-01-12
Grönroos, R. & Hansson, H. (2006). ARTES - Facts and figures. In: Hans Hansson (Ed.), ARTES - A network for Real-Time research and graduate Education in Sweden 1997 - 2006 (pp. 27-41). Uppsala: The Department of Information Technology
Open this publication in new window or tab >>ARTES - Facts and figures
2006 (English)In: ARTES - A network for Real-Time research and graduate Education in Sweden 1997 - 2006 / [ed] Hans Hansson, Uppsala: The Department of Information Technology , 2006, p. 27-41Chapter in book (Other academic)
Place, publisher, year, edition, pages
Uppsala: The Department of Information Technology, 2006
National Category
Computer Systems
Identifiers
urn:nbn:se:uu:diva-160659 (URN)91-506-1859-8 (ISBN)
Projects
ARTES
Available from: 2011-10-28 Created: 2011-10-28 Last updated: 2011-11-09
Högberg, K.-A., Flygh, G., Grönroos, R. & von Arnold, S. (2005). Field performance of Pinus contorta trees propagated vegetatively via adventitious buds. Scandinavian Journal of Forest Research, 20(4), 318-321
Open this publication in new window or tab >>Field performance of Pinus contorta trees propagated vegetatively via adventitious buds
2005 (English)In: Scandinavian Journal of Forest Research, ISSN 0282-7581, E-ISSN 1651-1891, Vol. 20, no 4, p. 318-321Article in journal (Refereed) Published
Abstract [en]

Pinus contorta plants regenerated from adventitious buds induced on zygotic embryos were planted in a field trial where growth, straightness and flowering were followed over 7 years. Seedlings were taller than the plants derived from adventitious buds at the start of the field trial. Adventitious plants did not catch up with seedlings in height after 7 years in the field, but the relative height growth was equal. The higher frequency of plagiotropic growth that was displayed by adventitious plants the first year in the field was not reflected by differences in the frequency of basal sweeps 6 years later. However, the frequency of crooked stems was comparatively high but similar among the plant types. Flowering was more abundant for the seedlings than for adventitious plants. Taken together, the results show that P. contorta can be cloned via adventitious buds from zygotic embryos, and that the resulting plants show satisfactory growth for inclusion in breeding.

Keywords
Basal sweep, flowering, genetic improvement programmes, growth, plagiotropic growth, stem straightness
National Category
Botany
Identifiers
urn:nbn:se:uu:diva-74484 (URN)10.1080/02827580510036247 (DOI)
Available from: 2008-03-27 Created: 2008-03-27 Last updated: 2017-12-14Bibliographically approved
Högberg, K.-A., Bozhkov, P. V., Grönroos, R. & von Arnold, S. (2001). Critical factors affecting ex vitro performance of somatic embryo plants of Picea abies. Scandinavian Journal of Forest Research, 16(4), 295-304
Open this publication in new window or tab >>Critical factors affecting ex vitro performance of somatic embryo plants of Picea abies
2001 (English)In: Scandinavian Journal of Forest Research, ISSN 0282-7581, E-ISSN 1651-1891, Vol. 16, no 4, p. 295-304Article in journal (Other academic) Published
Abstract [en]

The potential to use somatic embryos for large-scale propagation of elite genotypes, for integration into breeding programmes and for connecting breeding and mass propagation, is receiving much attention. However, before the methods are applied it is important that the plants regenerated via somatic embryogenesis grow as expected, i.e. as seedlings or cuttings. Growth of somatic embryo plants is under a cumulative influence of a number of treatments given during the in vitro phase and during the ex vitro establishment phase. The aim of this study was to identify treatments with a negative influence on the subsequent growth of somatic embryo plants of Norway spruce (Picea abies L. Karst.). Based on the results, the time of contact with abscisic acid during somatic embryo maturation and the length of continuous light treatment (CLT) during the first growth period strongly affect the height growth during two successive growth periods. In both cases longer treatments exerted negative effects. Based on these results a new method was set up, which includes: (1) prematuration treatment of the suspension culture in a growth regulator-free medium, by which the maturation step is synchronized and contracted; and (2) a two-phase germination treatment, first on a solidified medium and then in a liquid medium. This treatment avoids extended CLT during the first growth period. Another advantage of the two-phase germination treatment is a better root-system development. Somatic embryo plants produced according to this method can be transferred directly from in vitro conditions to the greenhouse.

National Category
Natural Sciences
Identifiers
urn:nbn:se:uu:diva-15961 (URN)10.1080/02827580116772 (DOI)
Available from: 2008-03-26 Created: 2008-03-26 Last updated: 2017-12-08Bibliographically approved
Lindroth, A. M., Saarikoski, P., Gunnar, F., Clapham, D., Grönroos, R., Thelander, M., . . . von Arnold, S. (2001). Two S-adenosylmethionine synthetase-encoding genes that are differentially expressed during adventitious root development in Pinus Contorta. Plant Molecular Biology, 46(3), 335-346
Open this publication in new window or tab >>Two S-adenosylmethionine synthetase-encoding genes that are differentially expressed during adventitious root development in Pinus Contorta
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2001 (Swedish)In: Plant Molecular Biology, ISSN 0167-4412, E-ISSN 1573-5028, Vol. 46, no 3, p. 335-346Article in journal (Refereed) Published
Abstract [en]

Two S-adenosylmethionine synthetase (SAMS) cDNAs, PcSAMS1 and PcSAMS2, have been identified in Pinus contorta. We found that the two genes are differentially expressed during root development. Thus, PcSAMS1 is preferentially expressed in roots and exhibits a specific expression pattern in the meristem at the onset of adventitious root development, whereas PcSAMS2 is expressed in roots as well as in shoots and is down-regulated during adventitious root formation. The expression of the two SAMS genes is different from the SAMS activity levels during adventitious root formation. We conclude that other SAMS genes that remain to be characterized may contribute to the observed SAMS activity, or that the activities of PcSAMS1 and PcSAMS2 are affected by post-transcriptional regulation. The deduced amino acid sequences of PcSAMS1 and PcSAMS2 are highly divergent, suggesting different functional roles. However, both carry the two perfectly conserved motifs that are common to all plant SAMS. At the protein level, PcSAMS2 shares about 90% identity to other isolated eukaryotic SAMS, while PcSAMS1 shares less than 50% identity with other plant SAMS. In a phylogenetic comparison, PcSAMS1 seems to have diverged significantly from all other SAMS genes. Nevertheless, PcSAMS1 was able to complement a Saccharomyces cerevisiae sam1 sam2 double mutant, indicating that it encodes a functional SAMS enzyme.

National Category
Natural Sciences
Identifiers
urn:nbn:se:uu:diva-15960 (URN)10.1023/A:1010637012528 (DOI)
Available from: 2008-03-26 Created: 2008-03-26 Last updated: 2017-12-08Bibliographically approved
Lindroth, A. M., Grönroos, R., Clapham, D., Svensson, J. & von Arnold, S. (1999). Ubiquitous and tissue specific gus expression in transgenic roots conferred by six different promoters in one coniferous (Pinus controta) and three angiosperm species (Lycopersicon esculentum, Nicotiana tabacum and Arabidopsis thaliana). Plant Cell Reports, 18(10), 820-828
Open this publication in new window or tab >>Ubiquitous and tissue specific gus expression in transgenic roots conferred by six different promoters in one coniferous (Pinus controta) and three angiosperm species (Lycopersicon esculentum, Nicotiana tabacum and Arabidopsis thaliana)
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1999 (Swedish)In: Plant Cell Reports, Vol. 18, no 10, p. 820-828Article in journal (Refereed) Published
Identifiers
urn:nbn:se:uu:diva-15962 (URN)
Available from: 2008-03-26 Created: 2008-03-26 Last updated: 2011-01-14
Flygh, G., Grönroos, R., Högberg, K.-A. & von Arnold, S. (1998). Development and growth of plantlets of Pinus contorta regenerated from adventitious buds.. Scandinavian Journal of Forest Research, 13(3), 330-338
Open this publication in new window or tab >>Development and growth of plantlets of Pinus contorta regenerated from adventitious buds.
1998 (English)In: Scandinavian Journal of Forest Research, Vol. 13, no 3, p. 330-338Article in journal (Refereed) Published
Identifiers
urn:nbn:se:uu:diva-15963 (URN)
Available from: 2008-03-26 Created: 2008-03-26 Last updated: 2011-01-14
Lindroth, A., Grönroos, R. & von Arnold, S. (1997). Study of adventitious root formation through lateral root-specific mRNA and rooting-associated promoters in Pinus contorta. In: Biology of Root Formation and Development (pp. 213-214). : Plenum Press New York and London
Open this publication in new window or tab >>Study of adventitious root formation through lateral root-specific mRNA and rooting-associated promoters in Pinus contorta
1997 (English)In: Biology of Root Formation and Development, Plenum Press New York and London , 1997, p. 213-214Chapter in book (Other (popular scientific, debate etc.))
Place, publisher, year, edition, pages
Plenum Press New York and London, 1997
Identifiers
urn:nbn:se:uu:diva-15965 (URN)
Available from: 2008-03-26 Created: 2008-03-26
Grönroos, R., Lindroth, A., Yibrah, H. & Clapham, D. (1997). Transgenic rooting in conifers. In: Biology of Root Formation and Development (pp. 175-180). : Plenum Press New York and London
Open this publication in new window or tab >>Transgenic rooting in conifers
1997 (English)In: Biology of Root Formation and Development, Plenum Press New York and London , 1997, p. 175-180Chapter in book (Other (popular scientific, debate etc.))
Place, publisher, year, edition, pages
Plenum Press New York and London, 1997
Identifiers
urn:nbn:se:uu:diva-15964 (URN)
Available from: 2008-03-26 Created: 2008-03-26
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