《植物生理学报》 2013, 49(10): 1009-1017

非生物胁迫相关NAC转录因子的结构及功能

李小兰, 胡玉鑫, 杨星, 于晓东, 李秋莉*

辽宁师范大学生命科学学院, 辽宁省植物生物技术重点实验室, 辽宁大连116081

通信作者：李秋莉；E-mail: skyliqiuli@163.com；Tel: 0411-82157078

摘　要：

NAC是植物特有的一类转录因子, 参与植物多个生长发育过程, 还参与植物对逆境胁迫的响应。本文对非生物胁迫相关NAC转录因子的结构特征、功能预测、表达特性、在转基因植物中的作用及调控路径进行综述。非生物胁迫相关NAC转录因子具有典型的NAC胁迫亚家族结构特征, 根据这些结构特征可以预测其功能; 非生物胁迫相关NAC转录因子能响应多种非生物胁迫, 其转基因过表达大多能使转基因植物提高一种或几种胁迫耐受性; 非生物胁迫相关NAC转录因子有着复杂的调控路径。这些NAC转录因子可用于提高转基因植物的逆境耐受性。

关键词：NAC转录因子; 非生物胁迫; 表达特性; 转基因植物; 调控路径

收稿：2013-06-01   修定：2013-08-09

资助：国家自然科学基金(31340052)和辽宁省自然科学基金(2013020069)

Structure and Functions of NAC Transcription Factors Involved in Abiotic Stress

LI Xiao-Lan, HU Yu-Xin, YANG Xing, YU Xiao-Dong, LI Qiu-Li*

Key Laboratory of Plant Biotechnology of Liaoning Province, College of Life Sciences, Liaoning Normal University, Dalian, Lia-oning 116081, China

Corresponding author: LI Qiu-Li; E-mail: skyliqiuli@163.com; Tel: 0411-82157078

Abstract:

The plant-specific NAC (NAM, ATAF1,2 and CUC2) transcription factors are involved in several developmental programs, and involved in the response to stress. This review focused on structural feature, func-tional prediction, expression patterns, the role in transgenic plants and regulation pathway of NAC transcription factors involved in abiotic stress. Abiotic stress related NAC transcription factors have typical structural fea-tures of stress subfamily of NAC, and their functions can be predicted by these features; NAC genes can be in-duced by at least one type of abiotic stress, overexpression of these genes enhanced one type or several types of abiotic stress tolerance of transgenic plants; the regulation pathway of these NAC genes is complicated. These NAC transcription factors will help enhance stress tolerance of transgenic plants.

Key words: NAC transcription factor; abiotic stress; expression patterns; transgenic plant; regulation pathway