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综合形态生物化学和转录组分析揭示了高地棉花的多维反应

Lakhvir Kaur Dhaliwal¹, Ritchel B Gannaban^1,2, Avinash Shrestha¹

¹Department of Plant and Soil Science College of Agricultural Sciences and Natural Resources Texas Tech University Lubbock Texas USA.

Plant-environment interactions (Hoboken, N.J.)

|June 7, 2023

概括

在寒冷压力下,棉花苗的生长和叶绿素的减少. 分子分析显示反应性氧物种 (ROS) 基因上调,尽管有保护机制,但有助于氧化应激.

科学领域:

植物科学植物科学
分子生物学分子生物学
农业科学农业科学

背景情况:

棉花是一种对寒冷敏感的作物,对全球农业至关重要.
了解寒冷应激反应对于作物改善至关重要.

研究的目的:

为了阐明背后的分子机制,棉花种子在寒冷压力下的表型变化.
确定参与棉花寒冷适应和应激反应的关键基因.

主要方法:

对六个棉花加入进行了综合形态,生化和转录组分析.
在不同温度下,对冷敏加入进行了比较的转录组概况分析.
测量了诸如叶绿素含量,口腔导电性和生物质等生理参数.

主要成果:

寒冷压力 (15°C) 减少了叶绿素,口腔导电,植物高度和生物量.
麦隆迪甲和普罗林水平增加,表明氧化应激和奥斯莫保护.
观察到反应性氧物种 (ROS) 生产基因和酸合成基因的升级.
发现了叶绿素合成基因的下调和光合作用率的降低.

结论:

寒冷压力会导致棉花苗的显著表型和分子变化.
虽然保护机制被激活了,但由于复杂的基因表达模式,氧化应激仍然存在.
结果提供了对基因调节的见解,以增强棉花的耐寒性.

关键词:

寒冷的压力是冷的压力.电解质泄漏发生电解质泄漏.马隆迪阿尔化物光合作用光合作用.有活性氧物种的反应性氧物种.

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