应激反应的ZmWRKY53基因增加了大米的寒冷耐受性
Song-Hyok Pak1, Tae-Song Ri2, Tong-Su Ho1
1Faculty of Life Science, KIM IL SUNG University, Pyongyang, Democratic People's Republic of Korea.
Transgenic research
|June 24, 2024
概括
ZmWRKY53基因增强了大米植物的寒冷耐受性. 转基因大米表现出更好的抗压能力,由更高的プロ林和糖分水平表明,以及更好的叶绿素保留.
科学领域:
- 植物分子生物学 植物分子生物学
- 压力生理学 压力生理学
- 农业生物技术 农业生物技术
背景情况:
- WRKY转录因子调节植物对生物和非生物压力的反应.
- 在植物中,AtWRKY33与非生物应激耐受性有关.
- 了解ZmWRKY53的功能可以提高作物的适应性.
研究的目的:
- 为了研究大米中ZmWRKY53的功能,这是AtWRKY33的同类物.
- 评估ZmWRKY53在提高大米寒冷耐受性的潜力.
主要方法:
- 农细菌介导的转化被用来将ZmWRKY53基因引入到米植物中.
- 在转基因大米中证实了ZmWRKY53的子宫外表达.
- 在寒冷压力下测量了包括プロ林,水溶性糖,叶绿素,电解质泄漏和MDA水平在内的生理参数.
主要成果:
- 与对照植物相比,表达ZmWRKY53的转基因大米植物表现出增强的耐寒性.
- 在ZmWRKY53转基因大米中观察到较高的自由普罗林和水溶性糖的积累.
- 增加的叶绿素含量和减少的电解质泄漏和MDA水平表明减少了感冒引起的损伤.
结论:
- ZmWRKY53赋予大米植物显著的寒冷耐受性.
- 这些发现表明ZmWRKY53是开发耐寒米品种的有价值基因.
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