乙烯在玉米生长发育中的多种作用及其在植物结构塑造中的重要性。

IF 5.6 2区 生物学 Q1 PLANT SCIENCES
Alejandro Aragón-Raygoza, Josh Strable
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引用次数: 0

摘要

气态植物激素乙烯是一种关键的发育和生长调节剂,也是对包括胁迫在内的非生物和生物相互作用的关键内源响应信号。我们对乙烯的生物合成、感知和信号传导的了解主要来自于几十年来对拟南芥和其他植物模型系统的研究。相比之下,关于乙烯途径和对激素反应的详细知识在玉米(Zea mays L.)中明显有限,玉米是一种全球谷物作物,是人类和牲畜热量的主要来源,也是关键的工业生物原料。最近的正向筛选和靶向反向遗传学的报道为乙烯途径和下游反应的保守和独特差异提供了重要的见解。乙烯合成和信号基因启动子区域和编码序列的自然和编辑等位基因变异改变了玉米的茎和根构型,在生物量和粮食产量中起着至关重要的作用。本文综述了乙烯在玉米中的研究进展,重点介绍了乙烯在调节茎和根系生长发育中的作用,以及这种重要激素如何影响植株结构和粮食产量。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Diverse roles of ethylene in maize growth and development, and its importance in shaping plant architecture.

The gaseous plant hormone ethylene is a key developmental and growth regulator, and a pivotal endogenous response signal to abiotic and biotic interactions, including stress. Much of what is known about ethylene biosynthesis, perception, and signaling comes from decades of research primarily in Arabidopsis thaliana and other eudicot model systems. In contrast, detailed knowledge on the ethylene pathway and response to the hormone is markedly limited in maize (Zea mays L.), a global cereal crop that is a major source of calories for humans and livestock, as well as a key industrial biofeedstock. Recent reports of forward screens and targeted reverse genetics have provided important insight into conserved and unique differences of the ethylene pathway and downstream responses. Natural and edited allelic variation in the promoter regions and coding sequences of ethylene biosynthesis and signaling genes alters maize shoot and root architectures, and plays a crucial role in biomass and grain yields. This review discusses recent advances in ethylene research in maize, with an emphasis on the role of ethylene in regulating growth and development of the shoot and root systems, and ultimately how this crucial hormone impacts plant architecture and grain yield.

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来源期刊
Journal of Experimental Botany
Journal of Experimental Botany 生物-植物科学
CiteScore
12.30
自引率
4.30%
发文量
450
审稿时长
1.9 months
期刊介绍: The Journal of Experimental Botany publishes high-quality primary research and review papers in the plant sciences. These papers cover a range of disciplines from molecular and cellular physiology and biochemistry through whole plant physiology to community physiology. Full-length primary papers should contribute to our understanding of how plants develop and function, and should provide new insights into biological processes. The journal will not publish purely descriptive papers or papers that report a well-known process in a species in which the process has not been identified previously. Articles should be concise and generally limited to 10 printed pages.
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