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植物激素在进化框架中的概况
Vojtěch Schmidt1,2, Roman Skokan3, Thomas Depaepe4
1Institute of Experimental Botany of the Czech Academy of Sciences, Rozvojová 263, 165 02, Prague 6, Czechia.
Nature communications
|May 8, 2024
概括
植物激素如奥克辛和细胞激素在绿藻 (Viridiplantae) 中广泛存在,这挑战了以前关于它们缺乏的假设. 这项研究揭示了藻类和陆地植物之间植物激素配置的关键差异.
科学领域:
- * 植物生物学 植物生物学
- * 生物化学 * 生物化学
- * 进化生物学 进化生物学
背景情况:
- * 绿色藻类与陆地植物密切相关.
- * 植物激素调节通常不存在于树脂植物基因组中.
- *在这些藻类中偶尔报告了内源性植物激素的产生.
研究的目的:
- * 综合分析多种植物激素在Viridiplantae中,重点关注charophytes.
- * 调查植物激素在绿藻和陆地植物中的存在和分布.
- * 了解植物激素的生物合成和新陈代谢在Streptophyta.
主要方法:
- * 在已建立的藻类培养中分析多种植物激素.
- *对维里迪植物进行比较分析,重点关注植物和陆地植物.
- * 对数据解释的遗传学指南.
主要成果:
- * 辅酶,酸,乙烯和cis-zeatin细胞因子在Viridiplantae中无处不在.
- * 陆地植物拥有跨胺细胞因子和合物,而绿藻中没有这种物质.
- *夏洛菲特偶尔会产生斯蒙酸和酸;陆地植物总是产生酸.
- *植物激素如奥克辛,细胞因子和酸被分泌到培养基中.
结论:
- * 植物激素的生物合成和信号通路在血管精子中并不完全符合观察到的容量在Viridiplantae.
- *这项研究提供了关于植物激素进化和Streptophyta的新陈代谢的见解.
- *这些发现挑战了早期植物亲属中植物激素缺失的概念.
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