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盐诱导的花中CC类型的谷氨基素的功能在番茄中下降

Siqi Ge¹, Sai Wang¹, Ruizhen Li¹

¹College of Horticulture, Shenyang Agricultural University, Shenyang, 110866, China; Key Laboratory of Protected Horticulture of Ministry of Education, Shenyang, China.

Plant physiology and biochemistry : PPB

|April 16, 2025

概括

盐应激导致番茄花落下,因为它增加了脱离区 (AZ) 中的活性氧物种 (ROS). 过度表达SlGRX16会降低ROS并防止花掉落,为作物产量保护提供了一个潜在的解决方案.

科学领域:

植物生物学植物生物学
农业科学农业科学
分子生物学分子生物学

背景情况:

盐应激通过诱导花和水果脱落而对作物产量产生负面影响.
驱动盐诱导脱离的精确分子机制尚未完全理解.
了解这些机制对于提高作物弹性和粮食安全至关重要.

研究的目的:

为了研究盐的压力对番茄植物生长和花的影响.
确定参与番茄盐诱导脱离的分子通路和基因.
探索反应性氧物种 (ROS) 和 SlGRXs 在这个过程中的作用.

主要方法:

番茄植物受到不同的NaCl度的影响.
测量了植物生长率和花落率.
在脱离区 (AZ) 上进行了RNA测序 (RNA-Seq).
用基因本体学 (GO) 分析来识别丰富的途径.
量化了反应性氧物种 (ROS) 的含量.
为了评估它的功能,SlGRX16基因被过度表达.

主要成果:

200毫米的NaCl显著抑制了番茄植物的生长,并加速了花朵的落下.
在盐应激下,RNA-Seq在AZ中确定了差异表达基因 (DEGs).
在GO分析中,与ROS相关的途径得到了显著的丰富,与AZ中ROS增加相关.
盐应力上调调的CC型SlGRXs在AZ中的表达.
过度表达SlGRX16降低了ROS水平,并减轻了盐引起的花落.

结论:

盐应激诱导番茄花主要通过AZ的ROS介导途径下降.
SlGRXs,特别是SlGRX16,对盐引起的氧化应激和脱离起着保护作用.
这些发现为植物对盐应激反应的分子基础提供了宝贵的见解,并建议培育耐盐作物的潜在目标.

关键词:

花滴滴滴滴滴滴滴滴滴滴滴滴有反应性氧物种的反应性氧物种.盐的压力是盐的压力.在SlGRXs.茄子番茄子番茄子

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