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Physiological Responses of Microcystis aeruginosa PCC7806 to Nonanoic Acid Stress
Shao, Ji-Hai1,2,3; Wu, Xing-Qiang1,2; Li, Ren-Hui1; Li, RH, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
2009-12-01
Source PublicationENVIRONMENTAL TOXICOLOGY
ISSN1520-4081
Volume24Issue:6Pages:610-617
AbstractA recent study has shown that nonanoic acid (NA) is one of the strongest allelochemicals to a cyanobacterium Microcystis aeruginosa, but the physiological responses of M. aeruginosa to NA stress remain unknown. In this study, physiological characters such as the growth rate, photosynthetic processes, phosphorus and nitrogen uptake kinetics, and the contents of intracellular microcystin of M. aeruginosa PCC7806 were studied under the NA stress. The results showed that the growth rates of M. aeruginosa PCC 7806 were significantly inhibited in all NA stress treatments during first 3 days after exposure, and the growth rate was recovered after 5-day exposure. After 2-day exposure, the contents of both phycocyanin and allophycocyanin per cell decreased at NA concentration of 4 mg L-1, and oxygen evolution was inhibited even at the concentration of 0.5 mg L-1, but carotenoid content per cell was slightly boosted in NA stress. Physiological recovery of M. aeruginosa PCC7806 was observed after 7-day exposure to NA. It was shown that NA stress had no effect on uptake of nitrogen, but could stimulate the uptake of phosphorus. The contents of intracellular microcystin have not been affected in all NA treatments in contrast with the control. (C) 2008 Wiley Periodicals, Inc. Environ Toxicol 24: 610-617, 2009.; A recent study has shown that nonanoic acid (NA) is one of the strongest allelochemicals to a cyanobacterium Microcystis aeruginosa, but the physiological responses of M. aeruginosa to NA stress remain unknown. In this study, physiological characters such as the growth rate, photosynthetic processes, phosphorus and nitrogen uptake kinetics, and the contents of intracellular microcystin of M. aeruginosa PCC7806 were studied under the NA stress. The results showed that the growth rates of M. aeruginosa PCC 7806 were significantly inhibited in all NA stress treatments during first 3 days after exposure, and the growth rate was recovered after 5-day exposure. After 2-day exposure, the contents of both phycocyanin and allophycocyanin per cell decreased at NA concentration of 4 mg L(-1), and oxygen evolution was inhibited even at the concentration of 0.5 mg L(-1), but carotenoid content per cell was slightly boosted in NA stress. Physiological recovery of M. aeruginosa PCC7806 was observed after 7-day exposure to NA. It was shown that NA stress had no effect on uptake of nitrogen, but could stimulate the uptake of phosphorus. The contents of intracellular microcystin have not been affected in all NA treatments in contrast with the control. (C) 2008 Wiley Periodicals, Inc. Environ Toxicol 24: 610-617, 2009.
SubtypeArticle
KeywordNoNanoic Acid (Na) Microcystis Aeruginosa Stress Physiological Responses
Department[Shao, Ji-Hai; Wu, Xing-Qiang; Li, Ren-Hui] Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China; [Shao, Ji-Hai; Wu, Xing-Qiang] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China; [Shao, Ji-Hai] Hunan Agr Univ, Resources & Environm Coll, Changsha 410128, Hunan, Peoples R China
Subject AreaEnvironmental Sciences ; Toxicology ; Water Resources
DOI10.1002/tox.20462
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine ; Physical Sciences
Funding Organization100 Talents Program of the Chinese Academy of Sciences [0823031501] ; 100 Talents Program of the Chinese Academy of Sciences [0823031501] ; 100 Talents Program of the Chinese Academy of Sciences [0823031501] ; 100 Talents Program of the Chinese Academy of Sciences [0823031501]
Indexed BySCI
Language英语
WOS Research AreaEnvironmental Sciences & Ecology ; Toxicology ; Water Resources
WOS SubjectEnvironmental Sciences ; Toxicology ; Water Resources
WOS IDWOS:000271971100011
WOS KeywordBLUE-GREEN-ALGAE ; STRATIOTES-ALOIDES ; SACCHAROMYCES-CEREVISIAE ; MYRIOPHYLLUM-SPICATUM ; WATER-SOLDIER ; PHYTOPLANKTON ; GROWTH ; LIGHT ; BIOSYNTHESIS ; FERMENTATION
Funding Organization100 Talents Program of the Chinese Academy of Sciences [0823031501] ; 100 Talents Program of the Chinese Academy of Sciences [0823031501] ; 100 Talents Program of the Chinese Academy of Sciences [0823031501] ; 100 Talents Program of the Chinese Academy of Sciences [0823031501]
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Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/152342/7476
Collection期刊论文
Corresponding AuthorLi, RH, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
Affiliation1.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
3.Hunan Agr Univ, Resources & Environm Coll, Changsha 410128, Hunan, Peoples R China
Recommended Citation
GB/T 7714
Shao, Ji-Hai,Wu, Xing-Qiang,Li, Ren-Hui,et al. Physiological Responses of Microcystis aeruginosa PCC7806 to Nonanoic Acid Stress[J]. ENVIRONMENTAL TOXICOLOGY,2009,24(6):610-617.
APA Shao, Ji-Hai,Wu, Xing-Qiang,Li, Ren-Hui,&Li, RH, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China.(2009).Physiological Responses of Microcystis aeruginosa PCC7806 to Nonanoic Acid Stress.ENVIRONMENTAL TOXICOLOGY,24(6),610-617.
MLA Shao, Ji-Hai,et al."Physiological Responses of Microcystis aeruginosa PCC7806 to Nonanoic Acid Stress".ENVIRONMENTAL TOXICOLOGY 24.6(2009):610-617.
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