U
Urs Fischer
Researcher at Swedish University of Agricultural Sciences
Publications - 39
Citations - 1826
Urs Fischer is an academic researcher from Swedish University of Agricultural Sciences. The author has contributed to research in topics: Auxin & Radical polymerization. The author has an hindex of 21, co-authored 38 publications receiving 1535 citations. Previous affiliations of Urs Fischer include University of Göttingen & Vienna University of Technology.
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Journal ArticleDOI
Arabidopsis WAT1 is a vacuolar auxin transport facilitator required for auxin homoeostasis
Philippe Ranocha,Oana Dima,Réka Nagy,Judith Felten,Claire Corratgé-Faillie,Ondřej Novák,Kris Morreel,Benoît Lacombe,Yves Martinez,Stephanie Pfrunder,Xu Jin,Jean-Pierre Renou,Jean-Baptiste Thibaud,Karin Ljung,Urs Fischer,Enrico Martinoia,Wout Boerjan,Deborah Goffner +17 more
TL;DR: It is demonstrated that WALLS ARE THIN1 (WAT1), a plant-specific protein that dictates secondary cell wall thickness of wood fibres, facilitates auxin export from isolated Arabidopsis vacuoles in yeast and in Xenopus oocytes, suggesting a key role for the vacuole in intracellular auxin homoeostasis.
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Local auxin biosynthesis modulates gradient-directed planar polarity in Arabidopsis.
Yoshihisa Ikeda,Shuzhen Men,Shuzhen Men,Urs Fischer,Urs Fischer,Anna Stepanova,Jose M. Alonso,Karin Ljung,Markus Grebe,Markus Grebe +9 more
TL;DR: It is demonstrated that the Raf-like kinase CONSTITUTIVE TRIPLE RESPONSE1 (CTR1) acts as a concentration-dependent repressor of a biosynthesis-dependent auxin gradient that modulates planar polarity in the root tip that contributes to gradient homeostasis during long-range coordination of cellular morphogenesis.
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Truffles Regulate Plant Root Morphogenesis via the Production of Auxin and Ethylene
TL;DR: Results establish the central role of IAA and ethylene as signal molecules in truffle/plant interactions and demonstrate that truffles synthesize ethylene from l-methionine probably through the α-keto-γ-(methylthio)butyric acid pathway.
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AspWood: High-Spatial-Resolution Transcriptome Profiles Reveal Uncharacterized Modularity of Wood Formation in Populus tremula
David Sundell,Nathaniel R. Street,Manoj Kumar,Ewa J. Mellerowicz,Melis Kucukoglu,Christoffer Johnsson,Vikash Kumar,Chanaka Mannapperuma,Nicolas Delhomme,Ove Nilsson,Hannele Tuominen,Edouard Pesquet,Edouard Pesquet,Urs Fischer,Totte Niittylä,Björn Sundberg,Torgeir R. Hvidsten,Torgeir R. Hvidsten +17 more
TL;DR: High spatial resolution of the AspWood large-scale data set enabled identification of novel roles for characterized genes involved in xylan and cellulose biosynthesis, regulators of xylem vessel and fiber differentiation and lignification and regulation of the transcriptome underlying cambial growth and wood formation.
Journal ArticleDOI
Vectorial Information for Arabidopsis Planar Polarity Is Mediated by Combined AUX1, EIN2, and GNOM Activity
Urs Fischer,Yoshihisa Ikeda,Karin Ljung,Olivier Serralbo,Manoj K. Singh,Renze Heidstra,Klaus Palme,Ben Scheres,Markus Grebe +8 more
TL;DR: Auxin may provide vectorial information for planar polarity that requires combinatorial AUX1, EIN2, and GNOM activity upstream of ROP positioning, and overproduction in sectors of wild-type roots enhances planar ROP and hair polarity over long and short distances.