Enantioselective effects of chiral fragrance carvone (L- and D-carvone) on the physiology, oxidative damage, synthesis, and release of microcystin-LR in Microcystis aeruginosa
文献类型： 外文期刊
作者： Ye, Jing 1 ; Hua, Sijia 1 ; Liu, Sijia 1 ; Tian, Fuxiang 1 ; Ji, Xiyan 2 ; Li, Yuanting 1 ; Hou, Meifang 2 ; Xu, Wenwu 3 ; Meng, Liang 4 ; Sun, Lijuan 5 ;
作者机构： 1.Shanghai Inst Technol, Sch Chem & Environm Engn, Shanghai 201418, Peoples R China
2.Shanghai Inst Technol, Sch Ecol Technol & Engn, Shanghai 201418, Peoples R China
3.Shanghai Inst Technol, Sch Railway Transportat, Shanghai 201418, Peoples R China
4.Shanghai Normal Univ, Sch Environm & Geog Sci, Shanghai 200234, Peoples R China
5.Shanghai Acad Agr Sci, Ecoenvironm Protect Res Inst, Shanghai 201403, Peoples R China
关键词： Enantioselective toxicity; Carvone; Microcystis aeruginosa; Microcystin-LR; Gene expression
期刊名称：SCIENCE OF THE TOTAL ENVIRONMENT （ 影响因子：10.753； 五年影响因子：10.237 ）
ISSN： 0048-9697
年卷期： 2022 年 853 卷
页码：
收录情况： SCI
摘要： Carvone is a widely used chiral fragrance with two isomers (L-carvone and D-carvone). D-carvone smells like a cara-way, whereas L-carvone smells like mint. Carvone imposes a potential burden on the aquatic ecosystem. However, the enantioselective toxic effect of carvone enantiomers on cyanobacteria remains unknown. This study aims to inves-tigate the effects of L- and D-carvone on the physiological processes and related gene transcription (phoU, rbcL, and mcyH) in M. aeruginosa. Results showed that in the presence of L- and D-carvone, the oxidative damage and inhibitory effects on growth occurred in a concentration-dependent manner. The contents of chlorophyll a and protein and the rbcL transcription level were inhibited in M. aeruginosa. In addition, intracellular adenosine triphosphate (ATP) was heavily depleted because of various biological processes, including growth, oxidation reactions, and gene regulation. Meanwhile, L- and D-carvone stimulated the production and release of MC-LR and upregulated the expression level of the MC-LR-related gene mcyH. Intracellular MC-LR likely leaked to the water body under L-carvone exposure, posing a potential threat to the water environment. This study indicated that L- and D-carvone can regulate the physiological and metabolic activity of M. aeruginosa and show enantioselective toxic effects. The findings will also provide impor-tant insights into the influence of chiral fragrance on cyanobacterial blooms. Furthermore, this study will guide the safe application of chiral fragrance as personal care products.
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