Pulse Brain · Growing Health Evidence Index
Tier 4 — Narrative / commentaryPeer-reviewed

Employing plant growth-promoting rhizobacteria for abiotic stress mitigation in plants: with a focus on drought stress

Sourav Chattaraj; Aurodeepa Samantaray; Arindam Ganguly; Hrudayanath Thatoi

Discover Applied Sciences · 2025

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Summary

This review examines the role of plant growth-promoting rhizobacteria (PGPR) as a biological strategy for alleviating drought stress in agricultural plants. It likely synthesises current understanding of the mechanisms through which PGPR — including ACC deaminase activity, phytohormone modulation, and enhanced root architecture — improve plant resilience under water-deficit conditions. The paper contributes to a growing body of literature exploring sustainable, microbiome-based alternatives or complements to chemical inputs for climate adaptation in agriculture.

UK applicability

Whilst the review is likely global in scope, the findings are broadly applicable to UK arable and horticultural systems facing increasing drought frequency due to climate change, and may inform future UK agri-environment or soil health policy on biological soil inoculants.

Key measures

Drought tolerance mechanisms; root colonisation; osmotic adjustment; phytohormone production; reactive oxygen species scavenging; plant biomass and growth parameters under water stress

Outcomes reported

The review examines mechanisms by which plant growth-promoting rhizobacteria (PGPR) confer drought tolerance in plants, likely covering physiological, biochemical, and molecular responses. It reportedly assesses the efficacy of PGPR inoculation in improving plant survival, growth, and productivity under water-deficit conditions.

Theme
Climate & resilience
Subject
Soil biology & microbiology
Study type
Narrative Review
Study design
Narrative review
Source type
Peer-reviewed study
Status
Published
Geography
International
System type
Arable cereals
DOI
10.1007/s42452-025-06468-6
Catalogue ID
NRmo3f02hq-01u

Topic tags

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