Search Results - (Author, Cooperation:P. Ulvskov)
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1Latest Papers from Table of Contents or Articles in PressJ. A. Banks ; T. Nishiyama ; M. Hasebe ; J. L. Bowman ; M. Gribskov ; C. dePamphilis ; V. A. Albert ; N. Aono ; T. Aoyama ; B. A. Ambrose ; N. W. Ashton ; M. J. Axtell ; E. Barker ; M. S. Barker ; J. L. Bennetzen ; N. D. Bonawitz ; C. Chapple ; C. Cheng ; L. G. Correa ; M. Dacre ; J. DeBarry ; I. Dreyer ; M. Elias ; E. M. Engstrom ; M. Estelle ; L. Feng ; C. Finet ; S. K. Floyd ; W. B. Frommer ; T. Fujita ; L. Gramzow ; M. Gutensohn ; J. Harholt ; M. Hattori ; A. Heyl ; T. Hirai ; Y. Hiwatashi ; M. Ishikawa ; M. Iwata ; K. G. Karol ; B. Koehler ; U. Kolukisaoglu ; M. Kubo ; T. Kurata ; S. Lalonde ; K. Li ; Y. Li ; A. Litt ; E. Lyons ; G. Manning ; T. Maruyama ; T. P. Michael ; K. Mikami ; S. Miyazaki ; S. Morinaga ; T. Murata ; B. Mueller-Roeber ; D. R. Nelson ; M. Obara ; Y. Oguri ; R. G. Olmstead ; N. Onodera ; B. L. Petersen ; B. Pils ; M. Prigge ; S. A. Rensing ; D. M. Riano-Pachon ; A. W. Roberts ; Y. Sato ; H. V. Scheller ; B. Schulz ; C. Schulz ; E. V. Shakirov ; N. Shibagaki ; N. Shinohara ; D. E. Shippen ; I. Sorensen ; R. Sotooka ; N. Sugimoto ; M. Sugita ; N. Sumikawa ; M. Tanurdzic ; G. Theissen ; P. Ulvskov ; S. Wakazuki ; J. K. Weng ; W. W. Willats ; D. Wipf ; P. G. Wolf ; L. Yang ; A. D. Zimmer ; Q. Zhu ; T. Mitros ; U. Hellsten ; D. Loque ; R. Otillar ; A. Salamov ; J. Schmutz ; H. Shapiro ; E. Lindquist ; S. Lucas ; D. Rokhsar ; I. V. Grigoriev
American Association for the Advancement of Science (AAAS)
Published 2011Staff ViewPublication Date: 2011-05-10Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyComputer ScienceMedicineNatural Sciences in GeneralPhysicsKeywords: Angiosperms/chemistry/genetics ; *Biological Evolution ; Bryopsida/genetics ; Chlamydomonas/chemistry/genetics ; DNA Transposable Elements ; Evolution, Molecular ; Gene Expression Regulation, Plant ; Genes, Plant ; *Genome, Plant ; MicroRNAs/genetics ; Molecular Sequence Data ; Phylogeny ; Plant Proteins/genetics/metabolism ; Proteome/analysis ; RNA Editing ; RNA, Plant/genetics ; Repetitive Sequences, Nucleic Acid ; Selaginellaceae/*genetics/growth & development/metabolism ; Sequence Analysis, DNAPublished by: -
2Latest Papers from Table of Contents or Articles in PressS. M. Velasquez ; M. M. Ricardi ; J. G. Dorosz ; P. V. Fernandez ; A. D. Nadra ; L. Pol-Fachin ; J. Egelund ; S. Gille ; J. Harholt ; M. Ciancia ; H. Verli ; M. Pauly ; A. Bacic ; C. E. Olsen ; P. Ulvskov ; B. L. Petersen ; C. Somerville ; N. D. Iusem ; J. M. Estevez
American Association for the Advancement of Science (AAAS)
Published 2011Staff ViewPublication Date: 2011-06-18Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyComputer ScienceMedicineNatural Sciences in GeneralPhysicsKeywords: Arabidopsis/genetics/growth & development/*metabolism ; Arabidopsis Proteins/chemistry/genetics/*metabolism ; Arabinose/metabolism ; Carbohydrate Conformation ; Cell Wall/*metabolism ; Gene Expression Regulation, Plant ; Genes, Plant ; Glycoproteins/chemistry/*metabolism ; Glycosylation ; Glycosyltransferases/genetics/metabolism ; Hydroxylation ; Hydroxyproline/*metabolism ; Models, Biological ; Mutation ; Pentosyltransferases/chemistry/metabolism ; Phenotype ; Plant Proteins/chemistry/*metabolism ; Plant Roots/cytology/*growth & development/metabolism ; Polysaccharides/chemistry ; Procollagen-Proline Dioxygenase/genetics/*metabolism ; Proline/metabolism ; Protein Conformation ; Protein Processing, Post-Translational ; Protein Structure, SecondaryPublished by: -
3Articles: DFG German National LicensesChristiansen, L. C. ; Dal Degan, F. ; Ulvskov, P. ; Borkhardt, B.
Oxford, UK : Blackwell Science, Ltd
Published 2002Staff ViewISSN: 1365-3040Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: BiologyNotes: Microscopic examination of cross sections of dorsal and ventral sutures of soybean pods (Glycine max cv. TGx1835-2E) at two different stages of maturity revealed that the dehiscence zone of soybean pods is functionally equivalent to the dehiscence zone known from crucifers. Enzymatic assays demonstrated the presence of endo-1,4-β-glucanases and endopolygalacturonases, the activity of which accumulated in the dehiscence zone and peaked during maturation. A single partial cDNA encoding an endopolygalacturonase was isolated by polymerase chain reaction and this clone was used to isolate the complete gene encoding the endopolygalacturonase in question. Approximately 1·2 kb of 5′ upstream sequence was cloned in the plant transformation vector pCAMBIA1301 in front of the uidA (GUS) gene and transformed into Arabidopsis thaliana. Expression analysis of the soybean endopolygalacturonase transcript revealed that the endopolygalacturonase is primarily found in dehiscence-related tissue and is presumably involved in the breakdown of the middle lamella prior to dehiscence. This result was corroborated by GUS stainings of the transgenic Arabidopsis linesType of Medium: Electronic ResourceURL: -
4Articles: DFG German National LicensesStaff View
ISSN: 0005-2736Keywords: ATPase, H^+- ; Detergent ; Enzyme latency ; Fatty acid ; Lysophosphatidylcholine ; Plasma membraneSource: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: BiologyChemistry and PharmacologyMedicinePhysicsType of Medium: Electronic ResourceURL: -
5Articles: DFG German National LicensesStaff View
ISSN: 1432-2048Keywords: Antibody ; Auxin ; Callus ; Cellulase ; Morphogenesis ; NicotianaSource: Springer Online Journal Archives 1860-2000Topics: BiologyNotes: Abstract A polyclonal antibody raised against cellulase (EC 3.2.1.4.) from callus of Nicotiana tabacum L. cv. Petit Havana SR1 reduced cellulase activity and induced shoot formation in tobacco callus in the presence of callus maintaining concentrations of auxin and cytokinin. Shoot induction as well as reduction of the cellulase activity was also obtained by withdrawing auxin from the callus medium. The effect of the two hormones on cellulase activity in the tobacco tissue was examined by varying the concentration of one of the hormones α-naphthylacetic acid (NAA) or benzylaminopurine (BAP) at a time while the other was kept at a level sufficient for either callus growth or shoot induction. While NAA stimulated the enzyme activity increasingly with concentration in the range 5 × 10−7 M to 5 × 10−5 M at both levels of BAP, BAP only stimulated the cellulase activity at an optimum concentration of 5 × 10−6 M when NAA was present at a level sufficient to induce callus growth. The results point to a pivotal role of the downward regulation of cellulase in the initiation of shoot induction. A series of events leading to oriented cell divisions as a result of the lowered cellulase level during the initial phase of the morphogenetic process is discussed.Type of Medium: Electronic ResourceURL: -
6Articles: DFG German National LicensesStaff View
ISSN: 1432-2048Keywords: Antibody ; Auxin ; Callus ; Cellulase ; Morphogenesis ; NicotianaSource: Springer Online Journal Archives 1860-2000Topics: BiologyNotes: Abstract A polyclonal antibody raised against cellulase (EC 3.2.1.4.) from callus ofNicotiana tabacum L. cv. Petit Havana SR1 reduced cellulase activity and induced shoot formation in tobacco callus in the presence of callus maintaining concentrations of auxin and cytokinin. Shoot induction as well as reduction of the cellulase activity was also obtained by withdrawing auxin from the callus medium. The effect of the two hormones on cellulase activity in the tobacco tissue was examined by varying the concentration of one of the hormones α-naphthylacetic acid (NAA) or benzylaminopurine (BAP) at a time while the other was kept at a level sufficient for either callus growth or shoot induction. While NAA stimulated the enzyme activity increasingly with concentration in the range 5 × 10−7 M to 5 × 10−5 M at both levels of BAP, BAP only stimulated the cellulase activity at an optimum concentration of 5 × 10−6 M when NAA was present at a level sufficient to induce callus growth. The results point to a pivotal role of the downward regulation of cellulase in the initiation of shoot induction. A series of events leading to oriented cell divisions as a result of the lowered cellulase level during the initial phase of the morphogenetic process is discussed.Type of Medium: Electronic ResourceURL: