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Effects of linear alkylbenzene sulfonate on the growth and toxin production of Microcystis aeruginosa isolated from Lake Dianchi.
Environ Sci Pollut Res Int. 2015 Apr; 22(7):5491-9.ES

Abstract

The exogenous organic pollutant linear alkylbenzene sulfonate (LAS) pollution and Microcystis bloom are two common phenomena in eutrophic lakes, but the effects of LAS alone on Microcystis remain unclear. In the present study, we investigated the effects of LAS on the growth, photochemical efficiency, and microcystin production of Microcystis aeruginosa in the laboratory. Results showed that low LAS (≤10 mg/L) concentrations improved the growth of M. aeruginosa (12 days of exposure). High LAS (20 mg/L) concentrations inhibited the growth of M. aeruginosa on the first 8 days of exposure; afterward, growth progressed. After 12 days of exposure, the concentrations of chlorophyll a in algal cells were not significantly affected by any of LAS concentrations (0.05 to 20 mg/L) in the present study; by contrast, carotenoid and protein concentrations were significantly inhibited when LAS concentrations reached as high as 20 mg/L. After 6 and 12 days of exposure, low LAS (≤10 mg/L) concentrations enhanced the maximal photochemical efficiency (Fv/Fm) and the maximal electron transport rate (ETRmax) of M. aeruginosa. Furthermore, LAS increased the microcystin production of M. aeruginosa. Extracellular and intracellular microcystin contents were significantly increased after M. aeruginosa was exposed to high LAS concentrations. Our results indicated that LAS in eutrophic lakes may increase the risk of Microcystis bloom and microcystin production.

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Publisher Full Text (DOI)

Authors+Show Affiliations

Wang Z
Key Laboratory for Environment and Disaster Monitoring and Evaluation of Hubei, Institute of Geodesy and Geophysics, Chinese Academy of Sciences, Wuhan, 430077, China, zwang@whigg.ac.cn.
Zhang J
No affiliation info available
Song L
No affiliation info available
Li E
No affiliation info available
Wang X
No affiliation info available
Xiao B
No affiliation info available

MeSH

Alkanesulfonic AcidsAnalysis of VarianceCarotenoidsChinaChlorophyllChlorophyll ADose-Response Relationship, DrugElectron TransportEnzyme-Linked Immunosorbent AssayEutrophicationFluorescenceLakesMicrocystinsMicrocystisProteinsTime Factors

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

25382498

Citation

Wang, Zhi, et al. "Effects of Linear Alkylbenzene Sulfonate On the Growth and Toxin Production of Microcystis Aeruginosa Isolated From Lake Dianchi." Environmental Science and Pollution Research International, vol. 22, no. 7, 2015, pp. 5491-9.
Wang Z, Zhang J, Song L, et al. Effects of linear alkylbenzene sulfonate on the growth and toxin production of Microcystis aeruginosa isolated from Lake Dianchi. Environ Sci Pollut Res Int. 2015;22(7):5491-9.
Wang, Z., Zhang, J., Song, L., Li, E., Wang, X., & Xiao, B. (2015). Effects of linear alkylbenzene sulfonate on the growth and toxin production of Microcystis aeruginosa isolated from Lake Dianchi. Environmental Science and Pollution Research International, 22(7), 5491-9. https://doi.org/10.1007/s11356-014-3784-9
Wang Z, et al. Effects of Linear Alkylbenzene Sulfonate On the Growth and Toxin Production of Microcystis Aeruginosa Isolated From Lake Dianchi. Environ Sci Pollut Res Int. 2015;22(7):5491-9. PubMed PMID: 25382498.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effects of linear alkylbenzene sulfonate on the growth and toxin production of Microcystis aeruginosa isolated from Lake Dianchi. AU - Wang,Zhi, AU - Zhang,Junqian, AU - Song,Lirong, AU - Li,Enhua, AU - Wang,Xuelei, AU - Xiao,Bangding, Y1 - 2014/11/11/ PY - 2014/06/16/received PY - 2014/10/27/accepted PY - 2014/11/11/entrez PY - 2014/11/11/pubmed PY - 2015/7/15/medline SP - 5491 EP - 9 JF - Environmental science and pollution research international JO - Environ Sci Pollut Res Int VL - 22 IS - 7 N2 - The exogenous organic pollutant linear alkylbenzene sulfonate (LAS) pollution and Microcystis bloom are two common phenomena in eutrophic lakes, but the effects of LAS alone on Microcystis remain unclear. In the present study, we investigated the effects of LAS on the growth, photochemical efficiency, and microcystin production of Microcystis aeruginosa in the laboratory. Results showed that low LAS (≤10 mg/L) concentrations improved the growth of M. aeruginosa (12 days of exposure). High LAS (20 mg/L) concentrations inhibited the growth of M. aeruginosa on the first 8 days of exposure; afterward, growth progressed. After 12 days of exposure, the concentrations of chlorophyll a in algal cells were not significantly affected by any of LAS concentrations (0.05 to 20 mg/L) in the present study; by contrast, carotenoid and protein concentrations were significantly inhibited when LAS concentrations reached as high as 20 mg/L. After 6 and 12 days of exposure, low LAS (≤10 mg/L) concentrations enhanced the maximal photochemical efficiency (Fv/Fm) and the maximal electron transport rate (ETRmax) of M. aeruginosa. Furthermore, LAS increased the microcystin production of M. aeruginosa. Extracellular and intracellular microcystin contents were significantly increased after M. aeruginosa was exposed to high LAS concentrations. Our results indicated that LAS in eutrophic lakes may increase the risk of Microcystis bloom and microcystin production. SN - 1614-7499 UR - https://www.unboundmedicine.com/medline/citation/25382498/Effects_of_linear_alkylbenzene_sulfonate_on_the_growth_and_toxin_production_of_Microcystis_aeruginosa_isolated_from_Lake_Dianchi_ DB - PRIME DP - Unbound Medicine ER -