Positive phototropism is the process through which plants orient their organs towards a directional light source. While the blue light receptors phototropins (phot) play a major role in phototropism towards blue (B) and ultraviolet (UV) radiation, recent research showed that the UVB light receptor UVR8 also triggers phototropism towards UVB. In addition, new details of the molecular mechanisms underlying the activity of these receptors and interaction with other environmental signals have emerged in the past years. In this review we summarize the current knowledge about hypocotyledoneous and inflorescence stem growth reorientation towards B and UVB, with focus on the molecular mechanisms. This article is protected by copyright. All rights reserved.

中文翻译：

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茎对蓝光和紫外光的向光性

正向光性是植物将其器官朝向定向光源定向的过程。虽然蓝光受体向光性物质 (phot) 在对蓝色 (B) 和紫外线 (UV) 辐射的向光性中起主要作用，但最近的研究表明，UVB 光受体 UVR8 也会触发对 UVB 的向光性。此外，过去几年出现了这些受体活性以及与其他环境信号相互作用的分子机制的新细节。在这篇综述中，我们总结了目前关于下胚叶和花序茎生长重新定向到 B 和 UVB 的知识，重点是分子机制。本文受版权保护。版权所有。