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FaERF105通过与ROS清理相关的抗氧化能力,通过提高抗氧化能力,赋予干旱和寒冷耐受性

Wenhui Li¹, Shuhang Li¹, Ran Sun¹

¹Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Northeast Region), Ministry of Agriculture and Rural Affairs/National-Local Joint Engineering Research Center for Development and Utilization of Small Fruits in Cold Regions/College of Horticulture & Landscape Architecture, Northeast Agricultural University, Harbin, China.

Physiologia plantarum

|March 9, 2026

概括

一个新发现的ERF转录因子FaERF105增强了植物对干旱和寒冷压力的耐受性. 这一发现为改善农作物在具有挑战性的环境中的弹性提供了新的策略.

科学领域:

植物生物学植物生物学
分子遗传学分子遗传学
无生物应激反应应激反应

背景情况:

AP2/ERF转录因子超级家族对于植物适应非生物压力至关重要.
了解特定的ERF家族成员可以揭示压力耐受性的新机制.

研究的目的:

从Fragaria × ananassa.中分离和表征一种新的ERF转录因子FaERF105,Fragaria × ananassa.
调查FaERF105在赋予耐旱和寒冷压力的作用.

主要方法:

基因分离和克隆FaERF105.5的基因
亚细胞局部化试验.
在Arabidopsis thaliana和Fragaria × ananassa中过度表达以评估应激耐受性.

主要成果:

蛋白质FaERF105被局部化到核中.
过度表达FaERF105增加了两种植物物种对干旱和寒冷压力的耐受性.
转基因植物保持了更高的プロ林和叶绿素含量,并增加了抗氧化酶活性 (SOD,POD,CAT).
氧化损伤标志物 (MDA,ROS) 在转基因系中减少.

结论:

FaERF105在调节植物适应不利环境条件,特别是干旱和寒冷方面发挥着至关重要的作用.
通过FaERF105介导的通路对于在压力下维持生理恒温至关重要.

关键词:

在FaERF1055中,我们可以看到弗拉加利亚 × ananassa 在AP2/ERF的基础上.寒冷的压力是冷的压力.干旱造成的压力是干旱.

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