Ethylene induced plant stress tolerance by Enterobacter sp. SA187 is mediated by 2-keto-4-methylthiobutyric acid production
Type
ArticleAuthors
Zélicourt, Axel de
Synek, Lukas
Saad, Maged

Alzubaidy, Hanin S.

Jalal, Rewaa S.

Xie, Yakun
Andres-Barrao, Cristina
Rolli, Eleonora

Guerard, Florence
Mariappan, Kiruthiga

Daur, Ihsanullah
Colcombet, Jean
Benhamed, Moussa

Depaepe, Thomas
Van Der Straeten, Dominique
Hirt, Heribert

KAUST Department
Biological and Environmental Sciences and Engineering (BESE) DivisionBioscience Program
Desert Agriculture Initiative
Plant Science
Red Sea Research Center (RSRC)
KAUST Grant Number
BAS/1/1062-01-01Date
2018-03-19Permanent link to this record
http://hdl.handle.net/10754/627387
Metadata
Show full item recordAbstract
Several plant species require microbial associations for survival under different biotic and abiotic stresses. In this study, we show that Enterobacter sp. SA187, a desert plant endophytic bacterium, enhances yield of the crop plant alfalfa under field conditions as well as growth of the model plant Arabidopsis thaliana in vitro, revealing a high potential of SA187 as a biological solution for improving crop production. Studying the SA187 interaction with Arabidopsis, we uncovered a number of mechanisms related to the beneficial association of SA187 with plants. SA187 colonizes both the surface and inner tissues of Arabidopsis roots and shoots. SA187 induces salt stress tolerance by production of bacterial 2-keto-4-methylthiobutyric acid (KMBA), known to be converted into ethylene. By transcriptomic, genetic and pharmacological analyses, we show that the ethylene signaling pathway, but not plant ethylene production, is required for KMBA-induced plant salt stress tolerance. These results reveal a novel molecular communication process during the beneficial microbe-induced plant stress tolerance.Citation
De Zélicourt A, Synek L, Saad MM, Alzubaidy H, Jalal R, et al. (2018) Ethylene induced plant stress tolerance by Enterobacter sp. SA187 is mediated by 2-keto-4-methylthiobutyric acid production. PLOS Genetics 14: e1007273. Available: http://dx.doi.org/10.1371/journal.pgen.1007273.Sponsors
This publication is based upon work supported by the King Abdullah University of Science and Technology (KAUST), base fund for HH no. BAS/1/1062-01-01. For ER, this publication has been written with the support of the Agreenskills fellowship programme which has received funding from the EU’s Seventh Framework Programme under grant agreement N° FP7-609398 (Agreenskills+ contract). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.Publisher
Public Library of Science (PLoS)Journal
PLOS GeneticsPubMed ID
29554117Relations
Is Supplemented By:- [Bioproject]
Title: Plant abiotic stress tolerance conferred by the desert endophytic bacterium Enterobacter sp. SA187 is mediated through enhanced ethylene signallingPublication Date: 2018-05-29. bioproject: PRJNA399521 Handle: 10754/666711
ae974a485f413a2113503eed53cd6c53
10.1371/journal.pgen.1007273
Scopus Count
Except where otherwise noted, this item's license is described as This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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