Light is one of the most essential environmental factors affecting many aspects of growth and developmental processes in plants. Plants undergo skotomorphogenic or photomorphogenic development dependent on the absence or presence of light. These two developmental programs enable a germinated seed to become a healthy seedling at the early stage of the plant life cycle. CULLIN 4‐DNA DAMAGE‐BINDING PROTEIN 1 (DDB1)‐based CONSTITUTIVELY PHOTOMORPHOGENIC 1 (COP1)‐SUPPRESSOR OF PHYA and COP10‐DEETIOLATED 1‐DDB1 E3 ubiquitin ligase complexes promote the skotomorphogenesis by ubiquitinating and degrading a number of photomorphogenic‐promoting factors in darkness. Photoreceptors sense and transduce light information to downstream signaling, thereby initiating a set of molecular events and subsequent photomorphogenesis. These processes are precisely modulated by a group of components including various photoreceptors, E3 ubiquitin ligase, and transcription factors at the molecular level. This review provides an overview of the current understanding of the COP1, ELONGATED HYPOCOTYL 5, and B‐BOX CONTAINING PROTEINs‐mediated light signal transduction pathway and highlights still open questions in the field.

中文翻译：

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COP1和BBXs-HY5介导的植物光信号转导。

光是影响植物生长和发育过程的许多方面的最重要的环境因素之一。取决于光的存在或不存在，植物经历植物形态发生或光形态发生的发展。这两个发展计划使发芽的种子在植物生命周期的早期成为健康的幼苗。基于CULLIN 4 DNA损伤结合蛋白1（DDB1）的组成性光生性1（COP1）抑制PHYA和COP10去脂化的1 -DDB1 E3泛素连接酶复合物通过泛素化和降解许多光致蛋白因子来促进拟态形成。黑暗。感光体感应光信息并将其转换为下游信号，从而引发一系列分子事件和随后的光形态发生。这些过程由一组组件精确调节，这些组件包括各种感光分子，E3泛素连接酶和分子水平的转录因子。这篇综述概述了对COP1，长螺旋藻5和含蛋白的B-BOX介导的光信号转导途径的当前理解，并突出了该领域尚待解决的问题。