Plant immunity in signal integration between biotic and abiotic stress responses

Plants constantly monitor and cope with the fluctuating environment while hosting a diversity of plant-inhabiting microbes. The mode and outcome of plant–microbe interactions, including plant disease epidemics, are dynamically and profoundly influenced by abiotic factors, such as light, temperature,...

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Bibliographic Details
Published in:The New phytologist 2020-01, Vol.225 (1), p.87-104
Main Authors: Saijo, Yusuke, Loo, Eliza Po-iian
Format: Article
Language:English
Subjects:
abiotic and biotic stress
Abiotic factors
Abiotic stress
Adaptation
Adaptation, Physiological
Combined stress
DAMPs
Epidemics
Host-Pathogen Interactions
Immunity
Immunological tolerance
Initial stresses
Nutrients
Plant diseases
Plant Diseases - immunology
Plant diversity
Plant Immunity
Plants - immunology
plant–microbe–environment interactions
Regulators
signal integration
Signal Transduction
stress adaptation
stress tolerance
Stress, Physiological
Tansley review
tradeoff
Variation
Water temperature
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Summary:Plants constantly monitor and cope with the fluctuating environment while hosting a diversity of plant-inhabiting microbes. The mode and outcome of plant–microbe interactions, including plant disease epidemics, are dynamically and profoundly influenced by abiotic factors, such as light, temperature, water and nutrients. Plants also utilize associations with beneficial microbes during adaptation to adverse conditions. Elucidation of the molecular bases for the plant–microbe–environment interactions is therefore of fundamental importance in the plant sciences. Following advances into individual stress signaling pathways, recent studies are beginning to reveal molecular intersections between biotic and abiotic stress responses and regulatory principles in combined stress responses. We outline mechanisms underlying environmental modulation of plant immunity and emerging roles for immune regulators in abiotic stress tolerance. Furthermore, we discuss how plants coordinate conflicting demands when exposed to combinations of different stresses, with attention to a possible determinant that links initial stress response to broad-spectrum stress tolerance or prioritization of specific stress tolerance.
ISSN:0028-646X
1469-8137
DOI:10.1111/nph.15989