Role of microRNAs in rice plant under salt stress

Soil salinity is one of the most devastating factors threatening cultivable land. While low to moderate salt stress affects the plant growth rate and yields, the high‐salt stress conditions are detrimental for plant growth. The problem of salinity is often compounded by mineral deficiencies and toxi...

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Bibliographic Details
Published in:Annals of applied biology 2016-01, Vol.168 (1), p.2-18
Main Authors: Mittal, D, Sharma, N, Sharma, V, Sopory, S.K, Sanan‐Mishra, N
Format: Article
Language:English
Subjects:
Abiotic stress
developmental stages
free radicals
Gene expression
homeostasis
MicroRNA
MicroRNAs
nutrient deficiencies
Oryza sativa
Plant growth
regulation
Rice
Salinity
Salt
salt stress
soil salinity
target gene
toxicity
yields
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Summary:Soil salinity is one of the most devastating factors threatening cultivable land. While low to moderate salt stress affects the plant growth rate and yields, the high‐salt stress conditions are detrimental for plant growth. The problem of salinity is often compounded by mineral deficiencies and toxicities. Rice is essentially rated as salt‐sensitive crop and its salt susceptibility is dependent on the growth stage. The genetic processes that are involved in coordinating the responses to salinity in rice are not very clearly understood, but can be somewhat explained by mechanisms that regulate ion homeostasis, osmolyte production, scavenging of toxic radicals, water conduction and root–shoot response coordination. This is achieved by modifying the gene expression. The microRNAs (miRs) represent an important class of endogenous small RNAs that have the potential to regulate gene expression at post‐transcriptional levels. This review discusses the impact of salinity on rice crop and the current knowledge in the area of miRs with their role in the adaptive response to salt and other abiotic stresses, with a focus on rice.
ISSN:0003-4746
1744-7348
DOI:10.1111/aab.12241