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Toxicity of Cu (II) to the green alga Chlorella vulgaris: a perspective of photosynthesis and oxidant stress.
Environ Sci Pollut Res Int. 2016 Sep; 23(18):17910-8.ES

Abstract

The toxic effects of Cu (II) on the freshwater green algae Chlorella vulgaris and its chloroplast were investigated by detecting the responses of photosynthesis and oxidant stress. The results showed that Cu (II) arrested the growth of C. vulgaris and presented in a concentration- and time-dependent trend and the SRichards 2 model fitted the inhibition curve best. The chlorophyll fluorescence parameters, including qP, Y (II), ETR, F v /F m , and F v /F 0, were stimulated at low concentration of Cu (II) but declined at high concentration, indicating the photosystem II (PSII) of C. vulgaris was destroyed by Cu (II). The chloroplasts were extracted, and the Hill reaction activity (HRA) of chloroplast was significantly decreased with the increasing Cu (II) concentration under both illuminating and dark condition, and faster decline speed was observed under dark condition. Activities of superoxide dismutase (SOD) and catalase (CAT) and malondialdehyde (MDA) content were also significantly decreased at high concentration Cu (II), companied with a large number of reactive oxygen species (ROS) production. All these results indicated a severe oxidative stress on algal cells occurred as well as the effect on photosynthesis, thus inhibiting the growth of algae, which providing sights to evaluate the phytotoxicity of Cu (II).

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Publisher Full Text (DOI)

Authors+Show Affiliations

Chen Z
Institute of Environmental Science, Zhejiang University, Hangzhou, 310058, China.
Song S
Institute of Environmental Science, Zhejiang University, Hangzhou, 310058, China.
Wen Y
Institute of Environmental Science, Zhejiang University, Hangzhou, 310058, China. wenyuezhong@zju.edu.cn.
Zou Y
Institute of Environmental Science, Zhejiang University, Hangzhou, 310058, China.
Liu H
School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou, 310012, China. lhj@mail.zjgsu.edu.cn.

MeSH

CatalaseChlorella vulgarisChlorophyllCopperMalondialdehydeOxidative StressPhotosynthesisReactive Oxygen SpeciesSuperoxide Dismutase

Pub Type(s)

Journal Article

Language

eng

PubMed ID

27255311

Citation

Chen, Zunwei, et al. "Toxicity of Cu (II) to the Green Alga Chlorella Vulgaris: a Perspective of Photosynthesis and Oxidant Stress." Environmental Science and Pollution Research International, vol. 23, no. 18, 2016, pp. 17910-8.
Chen Z, Song S, Wen Y, et al. Toxicity of Cu (II) to the green alga Chlorella vulgaris: a perspective of photosynthesis and oxidant stress. Environ Sci Pollut Res Int. 2016;23(18):17910-8.
Chen, Z., Song, S., Wen, Y., Zou, Y., & Liu, H. (2016). Toxicity of Cu (II) to the green alga Chlorella vulgaris: a perspective of photosynthesis and oxidant stress. Environmental Science and Pollution Research International, 23(18), 17910-8. https://doi.org/10.1007/s11356-016-6997-2
Chen Z, et al. Toxicity of Cu (II) to the Green Alga Chlorella Vulgaris: a Perspective of Photosynthesis and Oxidant Stress. Environ Sci Pollut Res Int. 2016;23(18):17910-8. PubMed PMID: 27255311.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Toxicity of Cu (II) to the green alga Chlorella vulgaris: a perspective of photosynthesis and oxidant stress. AU - Chen,Zunwei, AU - Song,Shufang, AU - Wen,Yuezhong, AU - Zou,Yuqin, AU - Liu,Huijun, Y1 - 2016/06/02/ PY - 2015/10/31/received PY - 2016/05/27/accepted PY - 2016/6/4/entrez PY - 2016/6/4/pubmed PY - 2017/3/10/medline KW - Algae KW - Heavy mental KW - Oxidative stress KW - Photosynthesis KW - Toxicity SP - 17910 EP - 8 JF - Environmental science and pollution research international JO - Environ Sci Pollut Res Int VL - 23 IS - 18 N2 - The toxic effects of Cu (II) on the freshwater green algae Chlorella vulgaris and its chloroplast were investigated by detecting the responses of photosynthesis and oxidant stress. The results showed that Cu (II) arrested the growth of C. vulgaris and presented in a concentration- and time-dependent trend and the SRichards 2 model fitted the inhibition curve best. The chlorophyll fluorescence parameters, including qP, Y (II), ETR, F v /F m , and F v /F 0, were stimulated at low concentration of Cu (II) but declined at high concentration, indicating the photosystem II (PSII) of C. vulgaris was destroyed by Cu (II). The chloroplasts were extracted, and the Hill reaction activity (HRA) of chloroplast was significantly decreased with the increasing Cu (II) concentration under both illuminating and dark condition, and faster decline speed was observed under dark condition. Activities of superoxide dismutase (SOD) and catalase (CAT) and malondialdehyde (MDA) content were also significantly decreased at high concentration Cu (II), companied with a large number of reactive oxygen species (ROS) production. All these results indicated a severe oxidative stress on algal cells occurred as well as the effect on photosynthesis, thus inhibiting the growth of algae, which providing sights to evaluate the phytotoxicity of Cu (II). SN - 1614-7499 UR - https://www.unboundmedicine.com/medline/citation/27255311/Toxicity_of_Cu__II__to_the_green_alga_Chlorella_vulgaris:_a_perspective_of_photosynthesis_and_oxidant_stress_ DB - PRIME DP - Unbound Medicine ER -