The NAC Family Transcription Factor OsNAP Confers Abiotic Stress Response Through the ABA Pathway

被引：190

作者：

Chen, Xu ^{[1
]}

Wang, Yaofeng ^{[1
]}

Lv, Bo ^{[1
]}

Li, Jie ^{[2
]}

Luo, Liqiong ^{[1
]}

Lu, Songchong ^{[1
]}

Zhang, Xuan ^{[1
]}

Ma, Hong ^{[1
]}

Ming, Feng ^{[1
]}

机构：

[1] Fudan Univ, Sch Life Sci, Inst Plant Biol, State Key Lab Genet Engn,Inst Genet, Shanghai 200433, Peoples R China

[2] Shanghai Normal Univ, Coll Life & Environm Sci, Shanghai 200234, Peoples R China

来源：

PLANT AND CELL PHYSIOLOGY | 2014年 / 55卷 / 03期

基金：

上海市自然科学基金;

关键词：

ABA; Abiotic stress; NAC transcription factor; Rice; PROTEIN PHOSPHATASE 2C; NO-APICAL-MERISTEM; ABSCISIC-ACID; GENOME-WIDE; DROUGHT TOLERANCE; SIGNALING PATHWAYS; REPRESSION DOMAIN; GENE-EXPRESSION; SALT TOLERANCE; GRAIN-YIELD;

D O I：

10.1093/pcp/pct204

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Plants respond to environmental stresses by altering gene expression, and several genes have been found to mediate stress-induced expression, but many additional factors are yet to be identified. OsNAP is a member of the NAC transcription factor family; it is localized in the nucleus, and shows transcriptional activator activity in yeast. Analysis of the OsNAP transcript levels in rice showed that this gene was significantly induced by ABA and abiotic stresses, including high salinity, drought and low temperature. Rice plants overexpressing OsNAP did not show growth retardation, but showed a significantly reduced rate of water loss, enhanced tolerance to high salinity, drought and low temperature at the vegetative stage, and improved yield under drought stress at the flowering stage. Microarray analysis of transgenic plants overexpressing OsNAP revealed that many stress-related genes were up-regulated, including OsPP2C06/OsABI2, OsPP2C09, OsPP2C68 and OsSalT, and some genes coding for stress-related transcription factors (OsDREB1A, OsMYB2, OsAP37 and OsAP59). Our data suggest that OsNAP functions as a transcriptional activator that plays a role in mediating abiotic stress responses in rice.

引用

页码：604 / 619

页数：16

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