Aix-Marseille University, CNRS UMR7265, CEA, Institute of Biosciences and Biotechnologies of Aix-Marseille, CEA/Cadarache, F-13108, Saint-Paul-lez-Durance, France.
Plant Physiol Biochem. 2020 Oct;155:35-41. doi: 10.1016/j.plaphy.2020.07.032. Epub 2020 Jul 22.
β-cyclocitral is a volatile short-chain apocarotenoid generated by enzymatic or non-enzymatic oxidation of the carotenoid β-carotene. β-cyclocitral has recently emerged as a new bioactive compound in various organisms ranging from plants and cyanobacteria to fungi and animals. In vascular plants, β-cyclocitral and its direct oxidation product, β-cyclocitric acid, are stress signals that accumulate under unfavorable environmental conditions such as drought or high light. Both compounds regulate nuclear gene expression through several signaling pathways, leading to stress acclimation. In cyanobacteria, β-cyclocitral functions as an inhibitor of competing microalgae and as a repellent against grazers. As a volatile compound, this apocarotenoid plays also an important role in intra-species and inter-species communication. This review summarizes recent findings on the multiple roles of β-cyclocitral and of some of its derivatives.
β-环柠檬醛是一种挥发性短链类胡萝卜素-apocarotenoid，由类胡萝卜素β-胡萝卜素的酶促或非酶促氧化产生。β-环柠檬醛最近作为一种新的生物活性化合物在各种生物中出现，这些生物从植物和蓝藻到真菌和动物。在维管植物中，β-环柠檬醛及其直接氧化产物β-环柠檬酸酸是在干旱或高光等不利环境条件下积累的应激信号。这两种化合物通过几种信号通路调节核基因表达，从而实现应激适应。在蓝藻中，β-环柠檬醛作为抑制竞争微藻的抑制剂和作为防止食草动物的驱避剂。作为一种挥发性化合物，这种类胡萝卜素-apocarotenoid 在种内和种间的通讯中也起着重要作用。这篇综述总结了关于β-环柠檬醛及其一些衍生物的多种作用的最新发现。
