Phylogenetically diverse endophytic bacteria from desert plants induce transcriptional changes of tissue-specific ion transporters and salinity stress in Arabidopsis thaliana
Type
ArticleAuthors
Eida, Abdul Aziz
Alzubaidy, Hanin S.

Zélicourt, Axel de

Synek, Lukas

Alsharif, Wiam

Lafi, Feras Fawzi
Hirt, Heribert

Saad, Maged

KAUST Department
Biological and Environmental Sciences and Engineering (BESE) DivisionBioscience Program
Competitive Research Funds
Computational Bioscience Research Center (CBRC)
Desert Agriculture Initiative
OCRF- Special Academic Partnership
Plant Science
Date
2018-12-07Online Publication Date
2018-12-07Print Publication Date
2019-03Permanent link to this record
http://hdl.handle.net/10754/630266
Metadata
Show full item recordAbstract
Salinity severely hampers crop productivity worldwide and plant growth promoting bacteria could serve as a sustainable solution to improve plant growth under salt stress. However, the molecular mechanisms underlying salt stress tolerance promotion by beneficial bacteria remain unclear. In this work, six bacterial isolates from four different desert plant species were screened for their biochemical plant growth promoting traits and salinity stress tolerance promotion of the unknown host plant Arabidopsis thaliana. Five of the isolates induced variable root phenotypes but could all increase plant shoot and root weight under salinity stress. Inoculation of Arabidopsis with five isolates under salinity stress resulted in tissue-specific transcriptional changes of ion transporters and reduced Na+/K+ shoot ratios. The work provides first insights into the possible mechanisms and the commonality by which phylogenetically diverse bacteria from different desert plants induce salinity stress tolerance in Arabidopsis. The bacterial isolates provide new tools for studying abiotic stress tolerance mechanisms in plants and a promising agricultural solution for increasing crop yields in semi-arid regions.Citation
Eida AA, Alzubaidy HS, de Zélicourt A, Synek L, Alsharif W, et al. (2018) Phylogenetically diverse endophytic bacteria from desert plants induce transcriptional changes of tissue-specific ion transporters and salinity stress in Arabidopsis thaliana. Plant Science. Available: http://dx.doi.org/10.1016/j.plantsci.2018.12.002.Sponsors
The authors would like to thank Cristina Andrés-Barrao for useful discussions on bacterial classification and phylogenetic tree construction. We also thank all members of The Hirt Lab, CDA management team and the greenhouse and bioscience core labs in KAUST for their technical assistance. The work was funded by KAUST baseline research projects of H.H. The authors declare that the research was conducted in absence of any commercial or financial relationships that could be construed as a potential conflict of interest.Publisher
Elsevier BVJournal
Plant ScienceAdditional Links
https://www.sciencedirect.com/science/article/pii/S0168945218311555ae974a485f413a2113503eed53cd6c53
10.1016/j.plantsci.2018.12.002