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光和交替的温度释放种子休眠在侵入性Dipsacus fullonum L.通过ROS恒温和ABA调节

Paola Frazzetto¹, Héctor R Huarte², Giuseppe D Puglia³

¹Department of Biological, Geological and Environmental Sciences, University of Catania, Catania, Italy.

Physiologia plantarum

|November 19, 2025

概括

在Dipsacus fullonum中,种子发芽是由光和温度控制的. 酸 (ABA) 和活性氧物种 (ROS) 在休眠释放中发挥关键作用,受环境线索的影响.

科学领域:

植物生物学植物生物学
种子生理学种子生理学
杂草科学杂草科学

背景情况:

种子发芽是由环境信号 (如光和温度) 调节的.
大 (Dipsacus fullonum) 是一种常见的杂草,具有复杂的发芽要求.

研究的目的:

研究Dipsacus fullonum种子休眠释放中的光和温度灵敏性的机制.
识别关键的基因和参与发芽调节的分子参与者.

主要方法:

选来自不同地区的六个Dipsacus fullonum加入.
对酸 (ABA) 水平和反应性氧物种 (ROS) 生产的分析.
长读RNA测序用于识别基因表达模式.

主要成果:

确定了两个不同的发芽行为:环境敏感和中性.
在黑暗中ABA积累维持休眠状态;其减少促进了发芽.
反应性氧物种 (ROS) 增强了发芽,即使没有光线.
DfPIF1通过促进ABA生物合成来维持休眠状态;抗氧化基因调节ROS恒温.

结论:

涉及ABA和ROS的新机制调节Dipsacus fullonum种子发芽,以应对环境刺激.
DfPIF1和抗氧化酶是休眠和发芽的关键调节者.

关键词:

在PIF1中,PIF1是PIF1,PIF1是PIF1.它们是ROS杂食者.常见的茶叶环境问题环境问题希斯顿脱乙酶的使用长时间读取RNA-seqq.种子的发芽种子的发芽杂草杂草是一种杂草.

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