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Ethylene induced plant stress tolerance by Enterobacter sp. SA187 is mediated by 2‐keto‐4‐methylthiobutyric acid production

(2018) PLOS GENETICS. 14(3).
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Abstract
Several plant species require microbial associations for survival under different biotic and abiotic stresses. In this study, we show that Enterobactersp. 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.
Keywords
GROWTH-PROMOTING RHIZOBACTERIA, INDUCED SYSTEMIC RESISTANCE, ARABIDOPSIS-THALIANA, SALT-TOLERANCE, BENEFICIAL MICROBES, ROOT MORPHOGENESIS, SALINITY-TOLERANCE, BOTRYTIS-CINEREA, RNA-SEQ, BACTERIA

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Citation

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Chicago
de Zélicourt, Axel, Lukas Synek, Maged M Saad, Hanin Alzubaidy, Rewaa Jalal, Yakun Xie, Cristina Andrés-Barrao, et al. 2018. “Ethylene Induced Plant Stress Tolerance by Enterobacter Sp. SA187 Is Mediated by 2‐keto‐4‐methylthiobutyric Acid Production.” Plos Genetics 14 (3).
APA
de Zélicourt, A., Synek, L., Saad, M. M., Alzubaidy, H., Jalal, R., Xie, Y., Andrés-Barrao, C., et al. (2018). Ethylene induced plant stress tolerance by Enterobacter sp. SA187 is mediated by 2‐keto‐4‐methylthiobutyric acid production. PLOS GENETICS, 14(3).
Vancouver
1.
de Zélicourt A, Synek L, Saad MM, Alzubaidy H, Jalal R, Xie Y, et al. Ethylene induced plant stress tolerance by Enterobacter sp. SA187 is mediated by 2‐keto‐4‐methylthiobutyric acid production. PLOS GENETICS. 2018;14(3).
MLA
de Zélicourt, Axel, Lukas Synek, Maged M Saad, et al. “Ethylene Induced Plant Stress Tolerance by Enterobacter Sp. SA187 Is Mediated by 2‐keto‐4‐methylthiobutyric Acid Production.” PLOS GENETICS 14.3 (2018): n. pag. Print.
@article{8564149,
  abstract     = {Several plant species require microbial associations for survival under different biotic and abiotic stresses. In this study, we show that Enterobactersp. 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.},
  articleno    = {e1007273},
  author       = {de Z{\'e}licourt, Axel and Synek, Lukas and Saad, Maged M and Alzubaidy, Hanin and Jalal, Rewaa and Xie, Yakun and Andr{\'e}s-Barrao, Cristina and Rolli, Eleonora and Guerard, Florence and Mariappan, Kiruthiga G and Daur, Ihsanullah and Colcombet, Jean and Benhamed, Moussa and Depaepe, Thomas and Van Der Straeten, Dominique and Hirt, Heribert},
  issn         = {1553-7404},
  journal      = {PLOS GENETICS},
  language     = {eng},
  number       = {3},
  pages        = {28},
  title        = {Ethylene induced plant stress tolerance by Enterobacter sp. SA187 is mediated by 2\unmatched{2010}keto\unmatched{2010}4\unmatched{2010}methylthiobutyric acid production},
  url          = {http://dx.doi.org/10.1371/journal.pgen.1007273},
  volume       = {14},
  year         = {2018},
}

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