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期刊论文

A NAC transcription factor gene of Chickpea (Cicer arietinum), CarNAC3, is involved in drought stress response and various developmental processes

麻浩Hui Peng a b Hui-Ying Cheng a Chen Chen a Xin-Wang Yu a Jia-Ni Yang a Wen-Rui Gao a Qing-Hua Shi c Hua Zhang c Jian-Gui Li c Hao Ma a *

Journal ofPlantPhysiology 166 (2009) 1934-1945,-0001,():

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摘要/描述

NAC strancription factors have been found to play important roles in plant development and responses to environmental stresses. Based on two cDNA libraries constructed from the PEG-treated and-ontreated seedling leaves of chickpea, aNAC gene, CarNAC3, was isolated and characterized. The results indicated that CarNAC3 contained 285 amino acids and had a conserved NAC domain. It was localized in the nucleus and possessed trans-activation activity in the C-terminus, Phylogenetic analysis showed that CarNAC3 belonged to the NAP )NAC-like, activated by APETALA3/PISTILLATA) subgroup of the NAC protein famity. CarNAC3 exhibited organ-specific expression and its induction was strongly dependent on leafage. CarNAC3 showed differential expression patterns during seed development and germination, and could be significantly induced by drought stress, abscisic acid (ABA), ethephon (Et) and indole-3-acetic acid (IAA), but was inhibited by N-6-benzyt-adenine (6-BA). Our data suggest that CarNAC3 may be a transcriptional activator involved in drought stress response and various developmental processes.

关键词: Chickpea Developmental process Drought stress response NAC trans c r i p t ion factor

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