D
Dietmar Geiger
Researcher at University of Würzburg
Publications - 68
Citations - 6749
Dietmar Geiger is an academic researcher from University of Würzburg. The author has contributed to research in topics: Guard cell & Abscisic acid. The author has an hindex of 37, co-authored 65 publications receiving 5760 citations.
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Journal ArticleDOI
Activity of guard cell anion channel SLAC1 is controlled by drought-stress signaling kinase-phosphatase pair.
Dietmar Geiger,Sönke Scherzer,Patrick Mumm,Annette Stange,Irene Marten,Hubert Bauer,Peter Ache,Susanne Matschi,Anja Liese,Khaled A. S. Al-Rasheid,Tina Romeis,Rainer Hedrich +11 more
TL;DR: It is demonstrated that SLAC1 represents the slow, deactivating, weak voltage-dependent anion channel of guard cells controlled by phosphorylation/dephosphorylation.
Journal ArticleDOI
A unified nomenclature of NITRATE TRANSPORTER 1/PEPTIDE TRANSPORTER family members in plants
Sophie Léran,Kranthi Varala,Jean Christophe Boyer,Maurizio Chiurazzi,Nigel M. Crawford,Françoise Daniel-Vedele,Laure C. David,Rebecca Dickstein,Emilio Fernández,Brian G. Forde,Walter Gassmann,Dietmar Geiger,Alain Gojon,Ji-Ming Gong,Barbara Ann Halkier,Jeanne M. Harris,Rainer Hedrich,Anis M. Limami,Doris Rentsch,Mitsunori Seo,Yi-Fang Tsay,Mingyong Zhang,Gloria M. Coruzzi,Benoît Lacombe +23 more
TL;DR: The phylogenetic tree was used to determine a unified nomenclature of this family named NPF, for NRT1/PTR FAMILY, and it is proposed that the members should be named accordingly: NPFX.
Journal ArticleDOI
Guard cell anion channel SLAC1 is regulated by CDPK protein kinases with distinct Ca2+ affinities
Dietmar Geiger,Sönke Scherzer,Patrick Mumm,Irene Marten,Peter Ache,Susanne Matschi,Anja Liese,C. Wellmann,Khaled A. S. Al-Rasheid,Erwin Grill,Tina Romeis,Rainer Hedrich +11 more
TL;DR: The CPK and OST1 branch of ABA signal transduction in guard cells seem to converge on the level of SLAC1 under the control of the ABI1/ABA-receptor complex.
Journal ArticleDOI
NRT/PTR transporters are essential for translocation of glucosinolate defence compounds to seeds
Hussam Hassan Nour-Eldin,Tonni Grube Andersen,Meike Burow,Svend Roesen Madsen,Morten Egevang Jørgensen,Carl Erik Olsen,Ingo Dreyer,Rainer Hedrich,Dietmar Geiger,Barbara Ann Halkier +9 more
TL;DR: Identifying and characterize two members of the nitrate/peptide transporter family, GTR1 and GTR2, as high-affinity, proton-dependent glucosinolate-specific transporters has agricultural potential as a means to control allocation of defence compounds in a tissue-specific manner.
Journal ArticleDOI
Stomatal Closure by Fast Abscisic Acid Signaling Is Mediated by the Guard Cell Anion Channel SLAH3 and the Receptor RCAR1
Dietmar Geiger,Tobias Maierhofer,Khaled A. S. Al-Rasheid,Sönke Scherzer,Patrick Mumm,Anja Liese,Peter Ache,Christian Wellmann,Irene Marten,Erwin Grill,Tina Romeis,Rainer Hedrich +11 more
TL;DR: The identification of SLAH3 as the nitrate-, calcium-, and ABA-sensitive guard cell anion channel provides insights into the relationship among stomatal response to drought, signaling by nitrate, and nitrate metabolism.