Cited by 963Plant-Microbe Interactions and ImmunityLegume Nitrogen Fixing SymbiosisPlant Stress Responses and Tolerance

Plant-rhizobacteria interactions alleviate abiotic stress conditions

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DIMKPA, CHRISTIAN, WEINAND, TANJA, ASCH, FOLKARD·2009·Plant, Cell & Environment

Abstract

Root-colonizing non-pathogenic bacteria can increase plant resistance to biotic and abiotic stress factors. Bacterial inoculates have been applied as biofertilizers and can increase the effectiveness of phytoremediation. Inoculating plants with non-pathogenic bacteria can provide 'bioprotection' against biotic stresses, and some root-colonizing bacteria increase tolerance against abiotic stresses such as drought, salinity and metal toxicity. Systematic identification of bacterial strains providing cross-protection against multiple stressors would be highly valuable for agricultural production in changing environmental conditions. For bacterial cross-protection to be an effective tool, a better understanding of the underlying morphological, physiological and molecular mechanisms of bacterially mediated stress tolerance, and the phenomenon of cross-protection is critical. Beneficial bacteria-mediated plant gene expression studies under non-stress conditions or during pathogenic rhizobacteria-plant interactions are plentiful, but only few molecular studies on beneficial interactions under abiotic stress situations have been reported. Thus, here we attempt an overview of current knowledge on physiological impacts and modes of action of bacterial mitigation of abiotic stress symptoms in plants. Where available, molecular data will be provided to support physiological or morphological observations. We indicate further research avenues to enable better use of cross-protection capacities of root-colonizing non-pathogenic bacteria in agricultural production systems affected by a changing climate.

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Crossref · 10.1111/j.1365-3040.2009.02028.x

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  • Microorganisms, and especially mycorrhiza, play crucial roles in plant resistance to drought and osmotic stress and the tolerance against episodes of freezing and thawing.

    “Microorganisms, and especially mycorrhiza, also play crucial roles in plant resistance to drought and osmotic stress and the tolerance against episodes of freezing and thawing.”
  • Established mechanisms include the mycelium, which has a smaller diameter than root hairs and therefore better access to bound water, and various mechanisms protecting the mycorrhizal fungus from osmotic stress, such as accumulation of osmolytes, surface hydrophobicity and bacterial secretion of exopolysaccharides.

    “Established mechanisms include the mycelium, which has a smaller diameter than root hairs and therefore better access to bound water (Lehto and Zwiazek, 2011) and various mechanisms protecting the mycorrhizal fungus (and therefore also the plant root) from osmotic stress, such as accumulation of osmolytes (mannitol, trehalose); surface hydrophobicity and bacterial secretion of exopolysaccharides (”

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Authors
DIMKPA, C., WEINAND, T., & ASCH, F.
Affiliations
  • Friedrich Schiller University Jena (DE)
  • University of Hohenheim (DE)
Corresponding author
ASCH, FOLKARD
Venue
Plant, Cell & Environment
Publisher
Wiley
Published
2009-11-05
Volume
32
Issue
12
Pages
1682-1694
ISSN
  • 0140-7791 (ISSN-L)
  • 1365-3040
OpenAlex
W1979772920
Cited by
963
References
134
Citations by year
2026: 41 · 2025: 43 · 2024: 58 · 2023: 79 · 2022: 84 · 2021: 117 · 2020: 106 · 2019: 115 · 2018: 61 · 2017: 60 · 2016: 49 · 2015: 31 · 2014: 33 · 2013: 36 · 2012: 23
FWCI
1.40
Type
journal article
Language
en
Open access
Locations
  • Plant Cell & Environment (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Plant-Microbe Interactions and Immunity
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Legume Nitrogen Fixing Symbiosis
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Plant Stress Responses and Tolerance
Keywords
abiotic stress tolerance, cross-protection, drought stress, salt stress, metal toxicity, biofertilizers, phytoremediation, bacterial inoculation, stress tolerance mechanisms, climate change adaptation
MeSH terms
Biodegradation, Environmental, Plants, Rhizobiaceae, Soil, Stress, Physiological, Symbiosis, Temperature, Gene Expression Regulation, Plant, Metals, Heavy, Salinity, Salt-Tolerant Plants, Droughts

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