期刊
JOURNAL OF PLANT PHYSIOLOGY
卷 166, 期 17, 页码 1934-1945出版社
ELSEVIER GMBH, URBAN & FISCHER VERLAG
DOI: 10.1016/j.jplph.2009.05.013
关键词
Chickpea; Developmental process; Drought stress response; NAC transcription factor
资金
- National Science and Technology Ministry of China [2007BAC151306, 2006BAD09A04, 2006BAD09A08]
- National Natural Science Foundation of China [30860152]
- Key Teacher Foundation of Guangxi Normal University, China
NAC transcription 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 -nontreated seedling leaves of chickpea, a NAC 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 family. CarNAC3 exhibited organ-specific expression and its induction was strongly dependent on leaf age. 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-benzyl-adenine (6-BA). Our data suggest that CarNAC3 may be a transcriptional activator involved in drought stress response and various developmental processes. (C) 2009 Elsevier GmbH. All rights reserved.
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