Phytohormone signalling and cross-talk to alleviate aluminium toxicity in plants

Aluminium (Al) is one of the most abundant metals in earth crust, which becomes toxic to the plants growing in acidic soil. Phytohormones like ethylene, auxin, cytokinin, abscisic acid, jasmonic acid and gibberellic acid are known to play important role in regulating Al toxicity tolerance in plants....

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Veröffentlicht in:Plant cell reports Jg. 40; H. 8; S. 1331 - 1343
Hauptverfasser: Ranjan, Alok, Sinha, Ragini, Lal, Shambhu Krishan, Bishi, Sujit Kumar, Singh, Anil Kumar
Format: Journal Article
Sprache:Englisch
Veröffentlicht: Berlin/Heidelberg Springer Berlin Heidelberg 01.08.2021
Springer Nature B.V
Schlagworte:
Abscisic acid
acid soils
Acidic soils
Aluminum
Auxins
Biomedical and Life Sciences
Biotechnology
Cell Biology
Cell walls
Crosstalk
Cytokinins
Earth crust
Ethylene
Exudation
Gene expression
Gibberellic acid
growth retardation
Jasmonic acid
Life Sciences
Metals
Organic acids
Phytohormones
Plant Biochemistry
Plant growth
Plant Growth Regulators and Signalling Molecules: Crosstalk in abiotic and biotic stress responses
Plant hormones
Plant Sciences
Reactive oxygen species
Review
root growth
Signal transduction
Signaling
Toxicity
Toxicity tolerance
Transcription factors
Aluminum toxicity
Auxin
Root growth
Ethylene
Cell wall modification
Phytohormones
Reactive oxygen species signalling
Cytokinin
ISSN:0721-7714, 1432-203X, 1432-203X
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Zusammenfassung:Aluminium (Al) is one of the most abundant metals in earth crust, which becomes toxic to the plants growing in acidic soil. Phytohormones like ethylene, auxin, cytokinin, abscisic acid, jasmonic acid and gibberellic acid are known to play important role in regulating Al toxicity tolerance in plants. Exogenous applications of auxin, cytokinin and abscisic acid have shown significant effect on Al-induced root growth inhibition. Moreover, ethylene and cytokinin act synergistically with auxin in responding against Al toxicity. A number of studies showed that phytohormones play vital roles in controlling root responses to Al toxicity by modulating reactive oxygen species (ROS) signalling, cell wall modifications, organic acid exudation from roots and expression of Al responsive genes and transcription factors. This review provides a summary of recent studies related to involvement of phytohormone signalling and cross-talk with other pathways in regulating response against Al toxicity in plants.
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ISSN:0721-7714
1432-203X
1432-203X
DOI:10.1007/s00299-021-02724-2