热应激反应因子ZmHSF10积极调节玉米的耐热性
Liru Cao1, Guo Li1, Dongling Zhang1
1The Shennong Laboratory, Henan Academy of Agricultural Sciences, Zhengzhou, Henan, 450002, China.
BMC plant biology
|October 30, 2025
概括
玉米幼苗面临着高温带来的威胁. 研究人员确定了ZmHSF10,一个关键的热冲击转录因子 (HSF),对改善玉米和其他植物的耐热性至关重要.
科学领域:
- 植物科学 植物科学
- 分子生物学分子生物学
- 遗传学 遗传学 是一个
背景情况:
- 高温压力显著影响到玉米幼苗的生长.
- 识别耐热基因对于开发有弹性的玉米品种至关重要.
研究的目的:
- 为了确定涉及到玉米耐热性的热冲击转录因子 (HSF).
- 研究ZmHSF10在植物热反应中的特定作用.
主要方法:
- 在热应力下对玉米杂交ZD819及其父母的转录组序列.
- 在玉米中使用VIGS技术进行基因沉默.
- 在Arabidopsis thaliana中进行过度表达的研究.
主要成果:
- 确定了12个HSF,其中ZmHSF10显示了最高的差异表达 (1279.40倍).
- 过度表达ZmHSF10增强了Arabidopsis在热下细胞膜稳定性和存活率.
- 在玉米中ZmHSF10沉默降低了,膜稳定性和热应激下的水含量.
结论:
- ZmHSF10在调节植物耐热性方面发挥着至关重要的作用.
- ZmHSF10提供了宝贵的遗传资源,可以提高玉米苗的耐热性.
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