Rajwanshi Ravi, Chakraborty Sreejita, Jayanandi Karam, Deb Bibhas, Lightfoot David A
Genomics Core Facility, Department of Plant Soil and Agricultural Systems, Southern Illinois University at Carbondale, Carbondale, IL, 62901-4415, USA,
Theor Appl Genet. 2014 Dec;127(12):2525-43. doi: 10.1007/s00122-014-2391-y. Epub 2014 Sep 26.
Small RNAs that are highly conserved across many plant species are involved in stress responses. Plants are exposed to many types of unfavorable conditions during their life cycle that result in some degree of stress. Recent studies on microRNAs (miRNAs) have highlighted their great potential as regulators of stress tolerance in plants. One of the possible ways in which plants counter environmental stresses is by altering their gene expression by the action of miRNAs. miRNAs regulate the expression of target genes by hybridizing to their nascent reverse complementary sequences marking them for cleavage in the nucleus or translational repression in the cytoplasm. Some miRNAs have been reported to be key regulators in biotic as well as abiotic stress responses across many species. The present review highlights some of the regulatory roles of orthologous plant miRNAs in response to various types of stress conditions.
在许多植物物种中高度保守的小RNA参与应激反应。植物在其生命周期中会面临多种不利条件，从而导致一定程度的胁迫。最近对微小RNA（miRNA）的研究突出了它们作为植物胁迫耐受性调节因子的巨大潜力。植物应对环境胁迫的一种可能方式是通过miRNA的作用改变其基因表达。miRNA通过与它们新生的反向互补序列杂交来调节靶基因的表达，从而标记它们在细胞核中被切割或在细胞质中被翻译抑制。据报道，一些miRNA是许多物种生物和非生物胁迫反应中的关键调节因子。本综述重点介绍了直系同源植物miRNA在应对各种胁迫条件时的一些调节作用。
