共查询到20条相似文献,搜索用时 15 毫秒
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Dwarf apple MbDREB1 enhances plant tolerance to low temperature, drought, and salt stress via both ABA-dependent and ABA-independent pathways 总被引:3,自引:0,他引:3
Wei Yang Xiao-Dan Liu Xiao-Juan Chi Chang-Ai Wu Yan-Ze Li Li-Li Song Xiu-Ming Liu Yan-Fang Wang Fa-Wei Wang Chuang Zhang Yang Liu Jun-Mei Zong Hai-Yan Li 《Planta》2011,233(2):219-229
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HONG Bo TONG Zheng MA Nan LI Jianke KASUGA Mie YAMAGUCHI-SHINOZAKI Kazuko GAO Junping 《中国科学C辑(英文版)》2006,49(5):436-445
DNA cassette containing an AtDREB1A cDNA and a nos terminator, driven by a cauliflower mosaic 35S promoter, or a stress-inducible rd29A promoter, was transformed into the ground cover chrysanthemum (Dendranthema grandiflorum) ‘Fall Color’ genome. Compared with wild type plants, severe growth retardation was observed in 35S:DREB1A plants, but not in rd29A:DREB1A plants. RT-PCR analysis revealed that, under stress conditions, the DREB1A gene was over-expressed constitutively in 35S:DREB1A plants, but was over-expressed inductively in rd29A:DREB1A plants. The transgenic plants exhibited tolerance to drought and salt stress, and the tolerance was significantly stronger
in rd29A:DREB1A plants than in 35S:DREB1A plants. Proline content and SOD activity were increased inductively in rd29A:DREB1A plants than in 35S:DREB1A plants under stress conditions. These results indicate that heterologous AtDREB1A can confer drought and salt tolerance in transgenic chrysanthemum, and improvement of the stress tolerance may be related
to enhancement of proline content and SOD activity. 相似文献
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Bo Hong Zheng Tong Nan Ma Jianke Li Mie Kasuga Kazuko Yamaguchi-Shinozaki Junping Gao 《中国科学:生命科学英文版》2006,49(5):436-445
DNA cassette containing an AtDREB1A cDNA and a nos terminator, driven by a cauliflower mosaic 35S promoter, or a stress-inducible rd29A promoter, was transformed into the ground cover chrysanthemum (Dendranthema grandiflorum) ‘Fall Color’ genome. Compared with wild type plants, severe growth retardation was observed in 35S:DREB1A plants, but not in rd29A:DREB1A plants. RT-PCR analysis revealed that, under stress conditions, the DREB1A gene was over-expressed constitutively in 35S:DREB1A plants, but was over-expressed inductively in rd29A:DREB1A plants. The transgenic plants exhibited tolerance to drought and salt stress, and the tolerance was significantly stronger in rd29A:DREB1A plants than in 35S:DREB1A plants. Proline content and SOD activity were increased inductively in rd29A:DREB1A plants than in 35S:DREB1A plants under stress conditions. These results indicate that heterologous AtDREB1A can confer drought and salt tolerance in transgenic chrysanthemum, and improvement of the stress tolerance may be related to enhancement of proline content and SOD activity. 相似文献
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Double overexpression of DREB and PIF transcription factors improves drought stress tolerance and cell elongation in transgenic plants 下载免费PDF全文
Madoka Kudo Satoshi Kidokoro Takuya Yoshida Junya Mizoi Daisuke Todaka Alisdair R. Fernie Kazuo Shinozaki Kazuko Yamaguchi‐Shinozaki 《Plant biotechnology journal》2017,15(4):458-471
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拟南芥非生物胁迫应答基因表达的调节子研究概况 总被引:3,自引:0,他引:3
分子生物学研究表明,植物中由诸如干旱、高盐和低温等环境胁迫因子诱导的几个基因具有多种功能。大多数干旱应答基因是由植物激素脱落酸(ABA)诱导的,但也有少数基因例外。对模式植物拟南芥基因表达中的干旱应答基因的分析表明,至少存在4个独立调节系统(调节子)。对典型胁迫诱导表达的一些基因中启动子的顺势作用元件和影响这些基因表达的转录子也已进行了分析。已经分离出与脱水效应元件/C重复序列(DRE/CRT)顺势作用元件结合的转录因子,并命名为DRE结合蛋白1/C重复序列结合因子(DREB1/CBF)和DRE结合蛋白2(DREB2)。在转基因拟南芥植株中,DREB1/CBF过量表达可增加其抗寒、抗旱和抗盐碱的能力。DREB1/CBF基因已成功地在许多不同作物中得到应用,从而提高作物对非生物胁迫的耐受性。与胁迫反应相关的其他转录因子的研究也正在取得进展。 相似文献
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