Instituto de Bioquímica Vegetal y Fotosíntesis (Universidad de Sevilla, Consejo Superior de Investigaciones Científicas), Américo Vespucio 49, 41092 Sevilla, Spain.
Departamento de Bioquímica Vegetal y Biología Molecular, Facultad de Química, Universidad de Sevilla, C/Profesor García González, 1, 41012 Sevilla, Spain.
J Exp Bot. 2023 Oct 13;74(19):6023-6039. doi: 10.1093/jxb/erad291.
Photorespiration has been considered a 'futile' cycle in C3 plants, necessary to detoxify and recycle the metabolites generated by the oxygenating activity of Rubisco. However, several reports indicate that this metabolic route plays a fundamental role in plant metabolism and constitutes a very interesting research topic. Many open questions still remain with regard to photorespiration. One of these questions is how the photorespiratory process is regulated in plants and what factors contribute to this regulation. In this review, we summarize recent advances in the regulation of the photorespiratory pathway with a special focus on the transcriptional and post-translational regulation of photorespiration and the interconnections of this process with nitrogen and sulfur metabolism. Recent findings on sulfide signaling and protein persulfidation are also described.
光合作用被认为是 C3 植物中的一种“无效”循环，它对于 Rubisco 的加氧活性所产生的代谢物的解毒和再循环是必要的。然而，有几项报告表明，这条代谢途径在植物代谢中起着重要作用，是一个非常有趣的研究课题。光合作用仍有许多悬而未决的问题。其中一个问题是光合作用过程是如何在植物中调节的，以及哪些因素促成了这种调节。在这篇综述中，我们总结了光合作用途径调节的最新进展，特别关注光合作用的转录和翻译后调节，以及与氮和硫代谢的相互联系。还描述了关于硫化物信号和蛋白质persulfidation 的最新发现。
