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  • 1.
    Ahlén, Anders
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Signals and Systems Group.
    Ahlgren, Bengt
    Uppsala University, Disciplinary Domain of Science and Technology, Mathematics and Computer Science, Department of Information Technology, Computer Systems.
    Grönroos, Roland
    Uppsala University, Disciplinary Domain of Science and Technology, Mathematics and Computer Science, Department of Information Technology, Computer Systems.
    Gunningberg, Per
    Uppsala University, Disciplinary Domain of Science and Technology, Mathematics and Computer Science, Department of Information Technology, Computer Systems.
    Hjort, Klas
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Micro Structural Technology.
    Katardjiev, Ilia
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Solid State Electronics.
    Rohner, Christian
    Uppsala University, Disciplinary Domain of Science and Technology, Mathematics and Computer Science, Department of Information Technology, Computer Systems.
    Rydberg, Anders
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Signals and Systems Group.
    Presentation of the VINN Excellence Center for Wireless Sensor Networks (WISENET)2008In: Conference on Radio Science (RVK08), Växjö, 2008Conference paper (Refereed)
  • 2. Flygh, Gunnar
    et al.
    Grönroos, Roland
    Uppsala University.
    Högberg, Karl-Anders
    von Arnold, Sara
    Development and growth of plantlets of Pinus contorta regenerated from adventitious buds.1998In: Scandinavian Journal of Forest Research, Vol. 13, no 3, p. 330-338Article in journal (Refereed)
  • 3.
    Flygh, Gunnar
    et al.
    Uppsala University.
    Grönroos, Roland
    Uppsala University.
    Högberg, Karl-Anders
    Uppsala University.
    von Arnold, Sara
    Uppsala University.
    Mikroförökning av contortatall1996Other (Other (popular scientific, debate etc.))
  • 4.
    Flygh, Gunnar
    et al.
    Uppsala University.
    Grönroos, Roland
    Uppsala University.
    von Arnold, Sara
    Uppsala University.
    Induction, rooting and growth capacity of adventitious shoots of Pinus contorta1993In: Canadian Journal of Forest Research, Vol. 23, p. 1907-1916Article in journal (Refereed)
  • 5.
    Flygh, Gunnar
    et al.
    Uppsala University.
    Grönroos, Roland
    Uppsala University.
    von Arnold, Sara
    Uppsala University.
    Optimizing growth of conifer seedlings in vitro1989In: Ann. Sci. For.: Forest Tree Physiology, 46 supplement, 1989, p. 168-170Conference paper (Other scientific)
  • 6.
    Flygh, Gunnar
    et al.
    Uppsala University.
    Grönroos, Roland
    Uppsala University.
    von Arnold, Sara
    Uppsala University.
    Gulin, Leif
    Uppsala University.
    Early and late root formation in epicotyl cuttings of Pinus sylvestris after auxin treatment1993In: Tree Physiology, Vol. 12, p. 81-92Article in journal (Refereed)
  • 7.
    Grönroos, Roland
    Uppsala University, Disciplinary Domain of Science and Technology.
    Rooting of Pinus sylvestris and Pinus contorta hypocotyl cuttings in vitro1987Doctoral thesis, comprehensive summary (Other academic)
  • 8.
    Grönroos, Roland
    et al.
    Uppsala University.
    Flygh, Gunnar
    Uppsala University.
    Kähr, Monika
    Uppsala University.
    von Arnold, Sara
    Uppsala University.
    Growth analyses on in vitro, ex vitro and auxin rooted hypocotyl cuttings ofPinus contorta Dougl. ex Loud.1993In: New Phytologist, Vol. 125, p. 829-836Article in journal (Refereed)
  • 9.
    Grönroos, Roland
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Mathematics and Computer Science, Department of Information Technology, Computer Systems.
    Hansson, Hans
    Mälardalens högskola.
    ARTES - Facts and figures2006In: 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)
  • 10.
    Grönroos, Roland
    et al.
    Uppsala University.
    Lindroth, Anders
    Yibrah, Hailie
    Clapham, David
    Transgenic rooting in conifers1997In: Biology of Root Formation and Development, Plenum Press New York and London , 1997, p. 175-180Chapter in book (Other (popular scientific, debate etc.))
  • 11.
    Grönroos, Roland
    et al.
    Uppsala University.
    von Arnold, Sara
    Initiation and development of wound tissue and roots on hypocotyl cuttings of Pinus sylvestris in vitro.1985In: Physiologia Plantarum, ISSN 0031-9317, Vol. 64, p. 393-401Article in journal (Refereed)
  • 12.
    Grönroos, Roland
    et al.
    Uppsala University.
    von Arnold, Sara
    Uppsala University.
    Initiation of roots on hypocotyl cuttings of Pinus contorta in vitro1987In: Physiologia Plantarum, Vol. 69, p. 227-236Article in journal (Refereed)
  • 13.
    Grönroos, Roland
    et al.
    Uppsala University.
    von Arnold, Sara
    Uppsala University.
    Initiation of roots on hypocotyl cuttings of Pinus sylvestris with emphasis on direct rooting, root elongation growth and auxin uptake1988In: Canadian Journal of Forest Research, Vol. 18, p. 1457-1462Article in journal (Refereed)
  • 14.
    Gunningberg, Per
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Mathematics and Computer Science, Department of Information Technology, Computer Systems.
    Grönroos, Roland
    Uppsala University, Disciplinary Domain of Science and Technology, Mathematics and Computer Science, Department of Information Technology.
    Katardjiev, Ilia
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Electronics.
    Voigt, Thiemo
    SICS.
    Ahlén, Anders
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Signal Processing.
    Hjort, Klas
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Micro Structural Technology.
    Rydberg, Anders
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Signal Processing.
    WISENET Wireless Sensor Networks VINN Excellence Center2007Other (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".

  • 15. Högberg, Karl-Anders
    et al.
    Bozhkov, P. V.
    Grönroos, Roland
    Department of Forest Genetics, Uppsala Genetic Centre , Swedish University of Agricultural Sciences.
    von Arnold, Sara
    Critical factors affecting ex vitro performance of somatic embryo plants of Picea abies2001In: Scandinavian Journal of Forest Research, ISSN 0282-7581, E-ISSN 1651-1891, Vol. 16, no 4, p. 295-304Article in journal (Other academic)
    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.

  • 16. Högberg, Karl-Anders
    et al.
    Flygh, Gunnar
    Grönroos, Roland
    Uppsala University, Disciplinary Domain of Science and Technology, Mathematics and Computer Science, Department of Information Technology.
    von Arnold, Sara
    Field performance of Pinus contorta trees propagated vegetatively via adventitious buds2005In: Scandinavian Journal of Forest Research, ISSN 0282-7581, E-ISSN 1651-1891, Vol. 20, no 4, p. 318-321Article in journal (Refereed)
    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.

  • 17. Lindroth, Anders
    et al.
    Grönroos, Roland
    Uppsala University.
    von Arnold, Sara
    Study of adventitious root formation through lateral root-specific mRNA and rooting-associated promoters in Pinus contorta1997In: Biology of Root Formation and Development, Plenum Press New York and London , 1997, p. 213-214Chapter in book (Other (popular scientific, debate etc.))
  • 18. Lindroth, Anders M.
    et al.
    Grönroos, Roland
    Uppsala University.
    Clapham, David
    Svensson, J.
    von Arnold, Sara
    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)1999In: Plant Cell Reports, Vol. 18, no 10, p. 820-828Article in journal (Refereed)
  • 19. Lindroth, Anders M.
    et al.
    Saarikoski, Peter
    Gunnar, Flygh
    Clapham, David
    Grönroos, Roland
    Thelander, M.
    Ronne, H.
    von Arnold, Sara
    Two S-adenosylmethionine synthetase-encoding genes that are differentially expressed during adventitious root development in Pinus Contorta2001In: Plant Molecular Biology, ISSN 0167-4412, E-ISSN 1573-5028, Vol. 46, no 3, p. 335-346Article in journal (Refereed)
    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.

  • 20.
    Magnussen, David
    et al.
    Uppsala University.
    Clapham, David
    Uppsala University.
    Grönroos, Roland
    Uppsala University.
    von Arnold, Sara
    Uppsala University.
    Induction of hairy and normal roots on Picea abies, Pinus sylvestris and Pinus contorta by Agrobacterium rhizogenes1994In: Scandinavian Journal of Forest Research, Vol. 9, p. 46-51Article in journal (Other (popular scientific, debate etc.))
  • 21.
    von Arnold, Sara
    et al.
    Uppsala University.
    Grönroos, Roland
    Uppsala University.
    Anatomical changes and peroxidase activity after cytokinin treatments inducing adventitious bud formation on embryos of Picea abies1986In: Botanical Gazette, Vol. 147, no 4, p. 425-431Article in journal (Refereed)
  • 22.
    Yibrah, Haile S.
    et al.
    Uppsala University.
    Grönroos, Roland
    Uppsala University.
    Lindroth, Anders
    Uppsala University.
    Franzen, Helena
    Uppsala University.
    Clapham, David
    Uppsala University.
    von Arnold, Sara
    Uppsala University.
    Agrobacterium rhizogenes-mediated induction of adventitious rooting from Pinus contorta hypocotyls and the effect of 5-azacytidine on transgene activity1996In: Transgenic Research, Vol. 5, p. 75-85Article in journal (Refereed)
1 - 22 of 22
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