Desert plant bacteria reveal host influence and beneficial plant growth properties
AuthorsEida, Abdul Aziz
Lafi, Feras Fawzi
Voolstra, Christian R.
KAUST DepartmentBiological and Environmental Sciences and Engineering (BESE) Division
Competitive Research Funds
Computational Bioscience Research Center (CBRC)
Desert Agriculture Initiative
Marine Science Program
OCRF- Special Academic Partnership
Red Sea Research Center (RSRC)
KAUST Grant NumberBAS/1/1062-01-01
Permanent link to this recordhttp://hdl.handle.net/10754/630276
MetadataShow full item record
AbstractDeserts, such as those found in Saudi Arabia, are one of the most hostile places for plant growth. However, desert plants are able to impact their surrounding microbial community and select beneficial microbes that promote their growth under these extreme conditions. In this study, we examined the soil, rhizosphere and endosphere bacterial communities of four native desert plants Tribulus terrestris, Zygophyllum simplex, Panicum turgidum and Euphorbia granulata from the Southwest (Jizan region), two of which were also found in the Midwest (Al Wahbah area) of Saudi Arabia. While the rhizosphere bacterial community mostly resembled that of the highly different surrounding soils, the endosphere composition was strongly correlated with its host plant phylogeny. In order to assess whether any of the native bacterial endophytes might have a role in plant growth under extreme conditions, we analyzed the properties of 116 cultured bacterial isolates that represent members of the phyla Proteobacteria, Bacteroidetes, Actinobacteria and Firmicutes. Our analysis shows that different strains have highly different biochemical properties with respect to nutrient acquisition, hormone production and growth under stress conditions. More importantly, eleven of the isolated strains could confer salinity stress tolerance to the experimental model plant Arabidopsis thaliana suggesting some of these plant-associated bacteria might be useful for improving crop desert agriculture.
CitationEida AA, Ziegler M, Lafi FF, Michell CT, Voolstra CR, et al. (2018) Desert plant bacteria reveal host influence and beneficial plant growth properties. PLOS ONE 13: e0208223. Available: http://dx.doi.org/10.1371/journal.pone.0208223.
SponsorsThe work was funded by KAUST baseline BAS/1/1062-01-01 research projects of HH and CRV. The funder had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.
PublisherPublic Library of Science (PLoS)
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.