journal article·2020-10-19Open access

Plant-Growth-Promoting Bacteria Mitigating Soil Salinity Stress in Plants

Stefan Shilev

Applied Sciences· Volume 10· Issue 20

Abstract

Soil deterioration has led to problems with the nutrition of the world’s population. As one of the most serious stressors, soil salinization has a negative effect on the quantity and quality of agricultural production, drawing attention to the need for environmentally friendly technologies to overcome the adverse effects. The use of plant-growth-promoting bacteria (PGPB) can be a key factor in reducing salinity stress in plants as they are already introduced in practice. Plants having halotolerant PGPB in their root surroundings improve in diverse morphological, physiological, and biochemical aspects due to their multiple plant-growth-promoting traits. These beneficial effects are related to the excretion of bacterial phytohormones and modulation of their expression, improvement of the availability of soil nutrients, and the release of organic compounds that modify plant rhizosphere and function as signaling molecules, thus contributing to the plant’s salinity tolerance. This review aims to elucidate mechanisms by which PGPB are able to increase plant tolerance under soil salinity.
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Research context

OpenAlex topics: Plant-Microbe Interactions and Immunity · Legume Nitrogen Fixing Symbiosis · Plant Stress Responses and Tolerance

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Microbiology and Environmental Biotechnologies, Agricultural University—Plovdiv, 12 Mendeleev Str., 4000 Plovdiv, Bulgaria

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