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Molecular Mechanisms of Diverse Auxin Responses during Plant Growth and Development

期刊

出版社

MDPI
DOI: 10.3390/ijms232012495

关键词

auxin; auxin response mechanism; transcription; growth and development; protein interaction; phosphorylation

资金

  1. National Natural Science Foundation of China [31770640]

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The plant hormone auxin plays a crucial role in regulating various developmental processes throughout all stages of plant growth. Recent studies have revealed more details about the molecular mechanisms of auxin responses and the differences between different types of responses. Genetically modifying auxin response genes can also impact various traits in plants. There are still important aspects and unsolved questions regarding auxin responses that need further research.
The plant hormone auxin acts as a signaling molecule to regulate numerous developmental processes throughout all stages of plant growth. Understanding how auxin regulates various physiological and developmental processes has been a hot topic and an intriguing field. Recent studies have unveiled more molecular details into how diverse auxin responses function in every aspect of plant growth and development. In this review, we systematically summarized and classified the molecular mechanisms of diverse auxin responses, and comprehensively elaborated the characteristics and multilevel regulation mechanisms of the canonical transcriptional auxin response. On this basis, we described the characteristics and differences between different auxin responses. We also presented some auxin response genes that have been genetically modified in plant species and how their changes impact various traits of interest. Finally, we summarized some important aspects and unsolved questions of auxin responses that need to be focused on or addressed in future research. This review will help to gain an overall understanding of and some insights into the diverse molecular mechanisms of auxin responses in plant growth and development that are instrumental in harnessing genetic resources in molecular breeding of extant plant species.

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