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Responses to Heat and Cold Stress

Responses to Heat and Cold Stress

Every organism has an optimum temperature range within which healthy growth and physiological functioning can occur. At the ends of this range, there will be a minimum and maximum temperature that interrupt biological processes.

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Updated: Jun 27, 2025

Identification of Novel Regulators of Plant Transpiration by Large-Scale Thermal Imaging Screening in Helianthus Annuus

Identification of Novel Regulators of Plant Transpiration by Large-Scale Thermal Imaging Screening in Helianthus Annuus

Published on: January 30, 2020

在花粉中检测热耐受性的选方法

Madeleine Stokes¹, Anja Geitmann¹

¹Department of Plant Science, Faculty of Agricultural and Environmental Sciences, McGill University, Montreal, Canada.

Annals of botany

|May 7, 2024

概括

此摘要是机器生成的。

植物繁殖与热应激作斗争,特别是雄性体内细胞的发育. 本次审查澄清了花粉活力和活力评估,以帮助作物育种适应气候变化.

关键词:

在受精过程中,受精热应激是一种热应激.植物繁殖植物繁殖对于花粉来说,这是一个很好的选择.花粉的发展花粉的发展.花粉形态学花粉形态学在花粉管中,花粉管.花粉的生命力,花粉的生命力.花粉活力花粉活力热敏度是一种热敏度.耐热性耐热性耐热性

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科学领域:

植物生殖生物学植物生殖生物学
环境压力生理学环境压力生理学
适应气候变化适应气候变化

背景情况:

植物繁殖对温度压力敏感,影响作物产量和自然种群.
升高的温度极大地影响了雄性雌同体的发育,这是一个关键的生殖阶段.
现有的研究缺乏一致的术语来评估压力下的花粉性能.

研究的目的:

定义和澄清"花粉活力"和"花粉活力"的术语.
审查和总结评估在温度压力下花粉性能的方法.
在植物繁殖应激研究中为一致的术语提供基础.

主要方法:

关于植物繁殖和温度压力的科学文献的综述.
分析用于评估花粉活力 (细胞特征,发芽试验) 的方法.
分析用于评估花粉活力 (体外生长,体内花粉管追踪) 的方法.

主要成果:

花粉活力通常是从细胞特征推断出来的,而发芽试验则提供直接测量.
花粉活力评估包括花粉管生长速度和形态/生长模式分析.
"生命力"和"活力"术语的不一致应用使比较研究复杂化.

结论:

对于精确的研究,对花粉活力和活力的标准化定义至关重要.
评估方法的一致应用将有助于更好地了解植物生殖应激反应.
这项工作支持开发适应气候变化的作物和预测自然人口动态.