Biodegradation and enzymatic responses in the marine diatom Skeletonema costatum upon exposure to 2,4-dichlorophenol

Shao Yang; Rudolf S.S Wu; Richard Y. C. Kong

doi:10.1016/S0166-445X(01)00252-1

Author(s)

Shao Yang
Rudolf S.S Wu
Richard Y. C. Kong

Detail(s)

Original language	English
Pages (from-to)	191-200
Journal / Publication	Aquatic Toxicology
Volume	59
Issue number	3-4
Publication status	Published - 2002

Link(s)

DOI	DOI https://doi.org/10.1016/S0166-445X(01)00252-1 Final Published version
	Check@CityULib
Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-0035996782&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(1af13032-73f0-4817-892e-d67c545642ed).html

Abstract

The biodegradation and responses of selected detoxification and antioxidant enzymes in the marine diatom, Skeletonema costatum, upon exposure to sublethal concentrations of 2,4-dichlorophenol (2,4-DCP) were investigated. Results show that 2,4-DCP was readily metabolised, but bioaccumulation and adsorption were negligible. Glutathione S-transferase, ascorbate peroxidase and superoxide dismutase activities were increased markedly after exposure to 2,4-DCP for 96 h, while no appreciable change in peroxidase activity was observed. The addition of exogeneous glutathione to diatom culture enhanced the degradation of 2,4-DCP, and promoted diatom growth. The inhibition of glutathione synthesis enhanced the toxicity of 2,4-DCP. These results suggest that glutathione conjugation was one of the principal mechanisms involved in the degradation of 2,4-DCP in this diatom. Copyright © 2002 Elsevier Science B.V.

Research Area(s)

2,4-Dichlorophenol, Degradation, Detoxification, Diatom, Enzyme

Citation Format(s)

[ RIS ] [ BibTeX ]

Biodegradation and enzymatic responses in the marine diatom Skeletonema costatum upon exposure to 2,4-dichlorophenol. / Yang, Shao; Wu, Rudolf S.S; Kong, Richard Y. C.
In: Aquatic Toxicology, Vol. 59, No. 3-4, 2002, p. 191-200.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review

Yang, S, Wu, RSS & Kong, RYC 2002, 'Biodegradation and enzymatic responses in the marine diatom Skeletonema costatum upon exposure to 2,4-dichlorophenol', Aquatic Toxicology, vol. 59, no. 3-4, pp. 191-200. https://doi.org/10.1016/S0166-445X(01)00252-1

Yang, S., Wu, R. S. S., & Kong, R. Y. C. (2002). Biodegradation and enzymatic responses in the marine diatom Skeletonema costatum upon exposure to 2,4-dichlorophenol. Aquatic Toxicology, 59(3-4), 191-200. https://doi.org/10.1016/S0166-445X(01)00252-1

Yang S, Wu RSS, Kong RYC. Biodegradation and enzymatic responses in the marine diatom Skeletonema costatum upon exposure to 2,4-dichlorophenol. Aquatic Toxicology. 2002;59(3-4):191-200. doi: 10.1016/S0166-445X(01)00252-1

Yang, Shao ; Wu, Rudolf S.S ; Kong, Richard Y. C. / Biodegradation and enzymatic responses in the marine diatom Skeletonema costatum upon exposure to 2,4-dichlorophenol. In: Aquatic Toxicology. 2002 ; Vol. 59, No. 3-4. pp. 191-200.