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XTBG OpenIR  > 2012年后新成立研究组  > 期刊论文

title: Identification of microRNAs from Zn-treated Solanum nigrum roots by small RNA sequencing
author: Xie, Zhixia;  Zhang, Ping;  Zhao, Jingjing;  Wang, Ruling;  Gao, Jianping;  Xu, Jin
Issued Date: 2017
Abstract: MicroRNAs (miRNAs) play key roles in regulating zinc (Zn) toxicity tolerance in plants. Solanum nigrum is a typical Zn/Cd-accumulating plant that has a high Zn/Cd tolerance. Despite their importance, no miRNAs have been identified from S. nigrum thus far. In this study, small RNA sequencing was used to identify Zn-responsive miRNAs in S. nigrum roots. We identified 176 differentially expressed miRNAs in S. nigrum roots in response to Zn toxicity. We also found that all these differentially expressed Zn-miRNAs simultaneously respond to the exogenous NO donor sodium nitroprusside (SNP), indicating that NO is involved in Zn-mediated miRNA expression in S. nigrum. These differentially expressed miRNAs are involved in regulating the following processes in S. nigrum roots: phenylpropanoid catabolic and metabolic processes; lignin catabolic and metabolic processes; and programmed cell death in response to ROS. These results suggest that these miRNAs play key roles in the Zn toxicity tolerance of S. nigrum.
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Recommended Citation:
Xie, Zhixia,Zhang, Ping,Zhao, Jingjing,et al. Identification Of Micrornas From Zn-treated Solanum Nigrum Roots By Small Rna Sequencing[J]. Acta Physiologiae Plantarum,2017,39(1):32.

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