The Arabidopsis short-chain dehydrogenase/reductase 3, an abscisic acid deficient 2 homolog, is involved in plant defense responses but not in ABA biosynthesis

The Arabidopsis short-chain dehydrogenase/reductase 3, an abscisic acid deficient 2 homolog, is involved in plant defense responses but not in ABA biosynthesis

Copyright © 2011 Elsevier Masson SAS. All rights reserved.

Bibliographische Detailangaben
Veröffentlicht in:Plant physiology and biochemistry : PPB. - 1991. - 51(2012) vom: 01. Feb., Seite 63-73
1. Verfasser: Hwang, San-Gwang (VerfasserIn)
Weitere Verfasser: Lin, Nai-Chun, Hsiao, Yi-Yun, Kuo, Ching-Hsuan, Chang, Pi-Fang, Deng, Wen-Ling, Chiang, Ming-Hau, Shen, Hwei-Ling, Chen, Chao-Ying, Cheng, Wan-Hsing
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2012
Zugriff auf das übergeordnete Werk:Plant physiology and biochemistry : PPB
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Arabidopsis Proteins PR-1 protein, Arabidopsis 147445-32-7 Abscisic Acid 72S9A8J5GW ABA2 protein, Arabidopsis EC 1.1.- Alcohol Oxidoreductases mehr... menthone (3S)-neomenthol reductase, Arabidopsis EC 1.1.1.-
Beschreibung
Zusammenfassung:Copyright © 2011 Elsevier Masson SAS. All rights reserved.
ABSCISIC ACID DEFICIENT2 (ABA2) encodes a short-chain dehydrogenase/reductase1 (SDR1) that catalyzes the multi-step conversion of xanthoxin to abscisic aldehyde during abscisic acid (ABA) biosynthesis in Arabidopsis thaliana. In this study, AtSDR2 and AtSDR3, the two closest homologs to AtABA2, were investigated for their potential role in ABA biosynthesis. AtSDR2 showed undetectable transcription in plants grown under normal conditions or under stress. AtSDR3 and AtABA2 have different spatial and temporal expression patterns. Complementation testing demonstrated that the pABA2::SDR3 transgene failed to complement the aba2 mutant phenotype, and that transgenic plants showed the same levels of ABA as the aba2 mutants. These data suggest that AtSDR3 confers no functional redundancy to AtABA2 in ABA biosynthesis. Interestingly, microarray data derived from Genevestigator suggested that AtSDR3 might have a function that is related to plant defense. Pseudomonas syringae pv. tomato (Pst) DC3000 infection and systemic acquired resistance (SAR) activator application further demonstrated that AtSDR3 plays an important role in plant defense responses at least partially through the regulation of AtPR-1 gene expression
Beschreibung:Date Completed 16.04.2012
Date Revised 30.09.2020
published: Print-Electronic
Citation Status MEDLINE
ISSN:1873-2690
DOI:10.1016/j.plaphy.2011.10.013