Birgit Geist
10 Papers
9 Citations
Birgit Geist is an academic researcher. The author has contributed to research in topics: Arabidopsis & Salicylic acid. The author has an hindex of 6, co-authored 10 publications.
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Papers
The Arabidopsis Glucosyltransferase UGT76B1 Conjugates Isoleucic Acid and Modulates Plant Defense and Senescence
Veronica von Saint Paul,Wei Zhang,Basem Kanawati,Birgit Geist,Theresa Faus-Keßler,Philippe Schmitt-Kopplin,Anton R. Schäffner +6 more
TL;DR: It is shown that UGT76B1 attenuates SA-dependent plant defense in the absence of infection, promotes the JA response, and delays senescence, which indicates a novel link between amino acid–related molecules and plant defense that is mediated by small-molecule glucosylation.
UGT76B1, a promiscuous hub of small molecule-based immune signaling, glucosylates N-hydroxypipecolic acid, and balances plant immunity.
Sibylle Bauer,Dereje W. Mekonnen,Michael Hartmann,Ipek Yildiz,Robert Janowski,Birgit Lange,Birgit Geist,Jürgen Zeier,Anton R. Schäffner +8 more
TL;DR: The authors showed that UGT76b1 also glucosylates N-hydroxypipecolic acid (NHP), which is synthesized by FLAVIN-DEPENDENT MONOOXYGENASE 1 (FMO1) and activates systemic acquired resistance (SAR).
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Ectopic expression of Arabidopsis thaliana plasma membrane intrinsic protein 2 aquaporins in lily pollen increases the plasma membrane water permeability of grain but not of tube protoplasts
Aniela Sommer,Birgit Geist,Olivier Da Ines,Renate Gehwolf,Anton R. Schäffner,Gerhard Obermeyer +5 more
TL;DR: The ectopic expression of AtPIP2s in lily pollen increased the water permeability of the plasma membrane in pollen grains, but not in pollen tubes, and the measured endogenous water permeable does not limit water uptake during tube growth, but has to be regulated to prevent tube bursting.
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Identification and functional characterization of two bamboo FD gene homologs having contrasting effects on shoot growth and flowering
Smritikana Dutta,Anwesha Deb,Prasun Biswas,Sukanya Chakraborty,Suman Guha,Devrani Mitra,Birgit Geist,Anton R. Schäffner,Malay Das +8 more
TL;DR: In this article, two florigen activation complex (FAC) genes (BtFD1 and BtFD2) have been identified by sequence and phylogenetic analyses.
UGT76B1, a promiscuous hub of small molecule-based immune signaling, glucosylates N-hydroxypipecolic acid and controls basal pathogen defense
Sibylle Bauer,Dereje W. Mekonnen,Michael Hartmann,Robert Janowski,Birgit Lange,Birgit Geist,Jürgen Zeier,Anton R. Schäffner +7 more
TL;DR: It is shown that UGT76B1 also glucosylates N-hydroxypipecolic acid (NHP), which is synthesized by FLAVIN-DEPENDENT MONOOXYGENASE 1 (FMO1) and activates systemic acquired resistance (SAR), and that ILA promotes and SA finally executes the NHP-triggered immunity via the glucOSyltransferase UGT 76B1 as the common metabolic hub.
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