ABSTRACT Neurotransmitters (NTs) such as acetylcholine, biogenic amines (dopamine, noradrenaline, adrenaline, histamine), indoleamines [(melatonin (MEL) & serotonin (SER)] have been found not only in mammalians, but also in diverse living organisms-microorganisms to plants. These NTs have emerged as potential signaling molecules in the last decade of investigations in various plant systems. NTs have been found to play important roles in plant life including-organogenesis, flowering, ion permeability, photosynthesis, circadian rhythm, reproduction, fruit ripening, photomorphogenesis, adaptation to environmental changes. This review will provide an overview of recent advancements on the physiological and molecular mechanism of NTs in plants. Moreover, molecular crosstalk of SER and MEL with various biomolecules is also discussed. The study of these NTs may serve as new understanding of the mechanisms of signal transmission and cell sensing in plants subjected to various environmental stimulus.

中文翻译：

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植物神经递质信号机制的新见解

摘要 神经递质 (NT)，如乙酰胆碱、生物胺（多巴胺、去甲肾上腺素、肾上腺素、组胺）、吲哚胺 [（褪黑激素 (MEL) 和血清素 (SER)] 不仅在哺乳动物中被发现，而且在多种生物体-微生物中也被发现到植物。这些 NTs 在过去十年对各种植物系统的研究中已成为潜在的信号分子。已发现 NTs 在植物生命中发挥重要作用，包括器官发生、开花、离子渗透、光合作用、昼夜节律、繁殖、果实成熟、光形态发生、适应环境变化。这篇综述将概述植物中 NTs 的生理和分子机制的最新进展。此外，还讨论了 SER 和 MEL 与各种生物分子的分子串扰。对这些NTs的研究可以作为对受到各种环境刺激的植物的信号传递和细胞感知机制的新理解。