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首页> 外文期刊>Plant, Cell & Environment >The impact of environmental stress on male reproductive development in plants: biological processes and molecular mechanisms.
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The impact of environmental stress on male reproductive development in plants: biological processes and molecular mechanisms.

机译：环境胁迫对植物雄性生殖发育的影响：生物学过程和分子机制。

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摘要

In plants, male reproductive development is extremely sensitive to adverse climatic environments and (a)biotic stress. Upon exposure to stress, male gametophytic organs often show morphological, structural and metabolic alterations that typically lead to meiotic defects or premature spore abortion and male reproductive sterility. Depending on the type of stress involved (e.g. heat, cold, drought) and the duration of stress exposure, the underlying cellular defect is highly variable and either involves cytoskeletal alterations, tapetal irregularities, altered sugar utilization, aberrations in auxin metabolism, accumulation of reactive oxygen species (ROS; oxidative stress) or the ectopic induction of programmed cell death (PCD). In this review, we present the critically stress-sensitive stages of male sporogenesis (meiosis) and male gametogenesis (microspore development), and discuss the corresponding biological processes involved and the resulting alterations in male reproduction. In addition, this review also provides insights into the molecular and/or hormonal regulation of the environmental stress sensitivity of male reproduction and outlines putative interaction(s) between the different processes involved.
机译：在植物中，雄性生殖发育对不利的气候环境和（a）生物胁迫极为敏感。暴露于压力下，雄配子体器官通常表现出形态，结构和代谢变化，通常导致减数分裂缺陷或孢子流产过早和雄性生殖不育。根据所涉及的压力类型（例如，高温，寒冷，干旱）和压力暴露的持续时间，潜在的细胞缺陷是高度可变的，并且涉及细胞骨架变化，绒毛膜不规则性，糖利用变化，生长素代谢异常，反应性积累氧物质（ROS;氧化应激）或异位诱导程序性细胞死亡（PCD）。在这篇综述中，我们介绍了雄性孢子发生（减数分裂）和雄性配子发生（小孢子发育）的临界压力敏感阶段，并讨论了涉及的相应生物学过程以及由此引起的雄性生殖变化。此外，本综述还提供了对男性生殖环境压力敏感性的分子和/或激素调节的见解，并概述了所涉及的不同过程之间的推定相互作用。

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