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[Influence of S-metolachlor and Cd2+ on photosynthesis of Scenedesmus obliquus].
Huan Jing Ke Xue. 2014 Sep; 35(9):3498-503.HJ

Abstract

The single and combined effects of Cd2+ and S-metolachlor on the chlorophyll content and chlorophyll fluorescence parameters of Scenedesmus obliquus were studied by using standard toxic testing method. Both Cd2+ and S-metolachlor had effects on the chlorophyll content and fluorescence parameters such as F0, FV/Fm, FV/F0, Y(II), qP, NPQ and rETR after 96 h-exposure, showing that Cd2+ and S-metolachlor damaged the PS II in algae, inhibited the primary reaction of photosynthesis, stopped the process of photosynthetic electron transport, and destroyed its ability of heat dissipation. The effects of Cd2 + on the chlorophyll content and fluorescence parameters were greater than those of S-metolachlor, and the effects increased with the increasing concentration. The average drop of Y(II) was 62. 5% in the control group when the light intensity was 231 μmol (m2.s) -1 , and it was 68. 0% , 82. 5% and 100% respectively in Cd2+ -treated groups, and 66. 1% , 72. 1% and 79.6% respectively in S-metolachlor-treated group with the increasing concentration. The combined effects of Cd2+ and S-metolachlor on the chlorophyll fluorescence parameters were mainly due to the impacts of Cd2+.

Authors

Chen CD
No affiliation info available
Hu XN
No affiliation info available
Zhang XQ
No affiliation info available
Liu HJ
No affiliation info available

MeSH

AcetamidesCadmiumChlorophyllElectron TransportFluorescencePhotosynthesisPhotosystem II Protein ComplexScenedesmus

Pub Type(s)

Journal Article

Language

chi

PubMed ID

25518672

Citation

Chen, Cai-dong, et al. "[Influence of S-metolachlor and Cd2+ On Photosynthesis of Scenedesmus Obliquus]." Huan Jing Ke Xue= Huanjing Kexue, vol. 35, no. 9, 2014, pp. 3498-503.
Chen CD, Hu XN, Zhang XQ, et al. [Influence of S-metolachlor and Cd2+ on photosynthesis of Scenedesmus obliquus]. Huan Jing Ke Xue. 2014;35(9):3498-503.
Chen, C. D., Hu, X. N., Zhang, X. Q., & Liu, H. J. (2014). [Influence of S-metolachlor and Cd2+ on photosynthesis of Scenedesmus obliquus]. Huan Jing Ke Xue= Huanjing Kexue, 35(9), 3498-503.
Chen CD, et al. [Influence of S-metolachlor and Cd2+ On Photosynthesis of Scenedesmus Obliquus]. Huan Jing Ke Xue. 2014;35(9):3498-503. PubMed PMID: 25518672.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - [Influence of S-metolachlor and Cd2+ on photosynthesis of Scenedesmus obliquus]. AU - Chen,Cai-dong, AU - Hu,Xiao-na, AU - Zhang,Xiao-qiang, AU - Liu,Hui-jun, PY - 2014/12/19/entrez PY - 2014/12/19/pubmed PY - 2015/6/20/medline SP - 3498 EP - 503 JF - Huan jing ke xue= Huanjing kexue JO - Huan Jing Ke Xue VL - 35 IS - 9 N2 - The single and combined effects of Cd2+ and S-metolachlor on the chlorophyll content and chlorophyll fluorescence parameters of Scenedesmus obliquus were studied by using standard toxic testing method. Both Cd2+ and S-metolachlor had effects on the chlorophyll content and fluorescence parameters such as F0, FV/Fm, FV/F0, Y(II), qP, NPQ and rETR after 96 h-exposure, showing that Cd2+ and S-metolachlor damaged the PS II in algae, inhibited the primary reaction of photosynthesis, stopped the process of photosynthetic electron transport, and destroyed its ability of heat dissipation. The effects of Cd2 + on the chlorophyll content and fluorescence parameters were greater than those of S-metolachlor, and the effects increased with the increasing concentration. The average drop of Y(II) was 62. 5% in the control group when the light intensity was 231 μmol (m2.s) -1 , and it was 68. 0% , 82. 5% and 100% respectively in Cd2+ -treated groups, and 66. 1% , 72. 1% and 79.6% respectively in S-metolachlor-treated group with the increasing concentration. The combined effects of Cd2+ and S-metolachlor on the chlorophyll fluorescence parameters were mainly due to the impacts of Cd2+. SN - 0250-3301 UR - https://www.unboundmedicine.com/medline/citation/25518672/[Influence_of_S_metolachlor_and_Cd2+_on_photosynthesis_of_Scenedesmus_obliquus]_ DB - PRIME DP - Unbound Medicine ER -