Mining Halophytes for Plant Growth-Promoting Halotolerant Bacteria to Enhance the Salinity Tolerance of Non-halophytic Crops

Frontiers in Microbiology
Hassan Etesami, Gwyn A Beattie

Abstract

Salinity stress is one of the major abiotic stresses limiting crop production in arid and semi-arid regions. Interest is increasing in the application of PGPRs (plant growth promoting rhizobacteria) to ameliorate stresses such as salinity stress in crop production. The identification of salt-tolerant, or halophilic, PGPRs has the potential to promote saline soil-based agriculture. Halophytes are a useful reservoir of halotolerant bacteria with plant growth-promoting capabilities. Here, we review recent studies on the use of halophilic PGPRs to stimulate plant growth and increase the tolerance of non-halophytic crops to salinity. These studies illustrate that halophilic PGPRs from the rhizosphere of halophytic species can be effective bio-inoculants for promoting the production of non-halophytic species in saline soils. These studies support the viability of bioinoculation with halophilic PGPRs as a strategy for the sustainable enhancement of non-halophytic crop growth. The potential of this strategy is discussed within the context of ensuring sustainable food production for a world with an increasing population and continuing climate change. We also explore future research needs for using halotolerant PGPRs under salinity stress.

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Citations

Feb 1, 2020·Journal of the Science of Food and Agriculture·Alejandro Jiménez-GómezRaúl Rivas
Mar 7, 2019·Frontiers in Bioengineering and Biotechnology·Ian S Acuña-RodríguezMarco A Molina-Montenegro
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Oct 13, 2020·Frontiers in Plant Science·Anna OtlewskaFlavia Pinzari
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Jul 16, 2021·Journal of Microbiology and Biotechnology·Mingyuan LiChangning Li
Nov 19, 2021·Frontiers in Microbiology·Huaihai ChenChengjin Chu

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Methods Mentioned

BETA
environmental stresses

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