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Start Over Author "Mengdan Yang" Journal environmental pollution (barking, essex : 1987)
1 results on '"Mengdan Yang"'

1. Toxic mechanism of two cyanobacterial volatiles β-cyclocitral and β-ionone on the photosynthesis in duckweed by altering gene expression

Author

Siyi Du, Haozhe Xu, Mengdan Yang, Ning Pan, Tiefeng Zheng, Chenyi Xu, Yan Li, and Zhaojiang Zuo

Subjects
Aldehydes, Volatile Organic Compounds, Health, Toxicology and Mutagenesis, Araceae, Gene Expression, General Medicine, Diterpenes, Photosynthesis, Toxicology, Cyanobacteria, Norisoprenoids, Pollution
Abstract

Volatile organic compounds (VOCs) promote cyanobacteria dominating eutrophicated waters, with aquatic plant decrease and even disappearance. To uncover the toxic mechanism of cyanobacterial VOCs on aquatic plants, we investigated the growth, photosynthetic pigment levels, photosynthetic abilities and related gene expression in duckweed treated with β-cyclocitral and β-ionone, 2 main components in the VOCs. The levels of chlorophylls and carotenoids gradually declined with raising the concentration of the 2 compounds and prolonging the treatment time. Their decline should result from the down-regulation of 8 genes associated with photosynthetic pigment biosynthesis and up-regulation of 2 genes involved in carotenoid degradation. The reduction was also found in the photosystem II (PSII) efficiency and O

Published
2022

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