Overexpression of the ethylene-responsive factor gene BrERF4 from Brassica rapa increases tolerance to salt and drought in Arabidopsis plants.

IF 3.7 3区 生物学 Q2 BIOCHEMISTRY & MOLECULAR BIOLOGY Molecules and Cells Pub Date : 2010-09-01 Epub Date: 2010-08-23 DOI:10.1007/s10059-010-0114-z
Yean Joo Seo, Jong-Beum Park, Yeon-Jeong Cho, Choonkyun Jung, Hak Soo Seo, Soon-Ki Park, Baek Hie Nahm, Jong Tae Song
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Abstract

Ethylene-responsive factors (ERFs), within a subgroup of the AP2/ERF transcription factor family, are involved in diverse plant reactions to biotic or abiotic stresses. Here, we report that overexpression of an ERF gene from Brassica rapa ssp. pekinensis (BrERF4) led to improved tolerance to salt and drought stresses in Arabidopsis. It also significantly affected the growth and development of transgenic plants. We detected that salt-induced expressions of a transcriptional repressor gene, AtERF4, and some Ser/Thr protein phosphatase2C genes, ABI1, ABI2 and AtPP2CA, were suppressed in BrERF4-overexpressing Arabidopsis plants. Furthermore, BrERF4 was induced by treatment with ethylene or methyljasmonate, but not by abscisic acid or NaCl in B. rapa. These results suggest that BrERF4 is activated through a network of different signaling pathways in response to salinity and drought.

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过表达芸苔属植物的乙烯反应因子基因 BrERF4 可提高拟南芥对盐和干旱的耐受性。
乙烯反应因子(ERF)是 AP2/ERF 转录因子家族的一个亚群,参与植物对生物或非生物胁迫的各种反应。在这里,我们报告了过表达来自芥蓝的 ERF 基因(BrERF4)可提高拟南芥对盐和干旱胁迫的耐受性。它还明显影响了转基因植物的生长和发育。我们检测到盐诱导的转录抑制基因 AtERF4 和一些 Ser/Thr 蛋白磷酸酶 2 基因 ABI1、ABI2 和 AtPP2CA 的表达在过表达 BrERF4 的拟南芥植株中受到抑制。此外,在拟南芥中,乙烯或甲基茉莉酸会诱导 BrERF4,而脱落酸或氯化钠不会诱导 BrERF4。这些结果表明,BrERF4 是通过不同的信号通路网络激活的,以应对盐度和干旱。
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来源期刊
Molecules and Cells
Molecules and Cells 生物-生化与分子生物学
CiteScore
6.60
自引率
10.50%
发文量
83
审稿时长
2.3 months
期刊介绍: Molecules and Cells is an international on-line open-access journal devoted to the advancement and dissemination of fundamental knowledge in molecular and cellular biology. It was launched in 1990 and ISO abbreviation is "Mol. Cells". Reports on a broad range of topics of general interest to molecular and cell biologists are published. It is published on the last day of each month by the Korean Society for Molecular and Cellular Biology.
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