Plant Growth-Promoting Rhizobacteria Eliminate the Effect of Drought Stress in Plants: A Review

Hafiz Muhammad Ahmad, Sajid Fiaz, Sumaira Hafeez, Sadaf Zahra, Adnan Noor Shah, Bushra Gul, Omar Aziz, Mahmood-Ur-Rahman, Ali Fakhar, Mazhar Rafique, Yinglong Chen, Seung Hwan Yang, Xiukang Wang

Research output: Contribution to journalReview articlepeer-review

91 Citations (Scopus)

Abstract

Plants evolve diverse mechanisms to eliminate the drastic effect of biotic and abiotic stresses. Drought is the most hazardous abiotic stress causing huge losses to crop yield worldwide. Osmotic stress decreases relative water and chlorophyll content and increases the accumulation of osmolytes, epicuticular wax content, antioxidant enzymatic activities, reactive oxygen species, secondary metabolites, membrane lipid peroxidation, and abscisic acid. Plant growth-promoting rhizobacteria (PGPR) eliminate the effect of drought stress by altering root morphology, regulating the stress-responsive genes, producing phytohormones, osmolytes, siderophores, volatile organic compounds, and exopolysaccharides, and improving the 1-aminocyclopropane-1-carboxylate deaminase activities. The use of PGPR is an alternative approach to traditional breeding and biotechnology for enhancing crop productivity. Hence, that can promote drought tolerance in important agricultural crops and could be used to minimize crop losses under limited water conditions. This review deals with recent progress on the use of PGPR to eliminate the harmful effects of drought stress in traditional agriculture crops.
Original languageEnglish
Article number875774
Number of pages19
JournalFrontiers in Plant Science
Volume13
DOIs
Publication statusPublished - 11 Aug 2022

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