Plant Small RNAs:Biogenesis, Mode of Action and Their Roles in Abiotic Stresses
10.1016/S1672-0229(11)60022-3
- Author:
Guleria PRAVEEN
1
;
Mahajan MONIKA
;
Bhardwaj JYOTI
;
Yadav Kumar SUDESH
Author Information
1. Plant Metabolic Engineering, Biotechnology Division, CSIR-Institute of Himalayan Bioresource Technology, CSIR, Palampur 176061(HP), India
- Keywords:
plants;
abiotic stress;
small RNA;
microRNA;
siRNA
- From:
Genomics, Proteomics & Bioinformatics
2011;09(6):183-199
- CountryChina
- Language:Chinese
-
Abstract:
Small RNAs (sRNAs) are 18-30 nt non-coding regulatory elements found in diverse organisms,which were initially identified as small double-stranded RNAs in Caenorhabditis elegans.With the development of new and improved technologies,sRNAs have also been identified and characterized in plant systems.Among them,micro RNAs (miRNAs) and small interfering RNAs (siRNAs) are found to be very important riboregulators in plants.Various types of sRNAs differ in their mode of biogenesis and in their function of gene regulation.sRNAs are involved in gene regulation at both transcriptional and post-transcriptional levels.They are known to regulate growth and development of plants.Furthermore,sRNAs especially plant miRNAs have been found to be involved in various stress responses,such as oxidative,mineral nutrient deficiency,dehydration,and even mechanical stimulus.Therefore,in the present review,we focus on the current understanding of biogenesis and regulatory mechanisms of plant sRNAs and their responses to various abiotic stresses.
