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Effects of an Algicidal Bacterium Pseudomonas mendocina on the Growth and Antioxidant System of Aphanizomenon flos-aquae
Shi, Shunyu1; Tang, Dongshan2; Liu, Yongding3
2009-08-01
Source PublicationCURRENT MICROBIOLOGY
ISSN0343-8651
Volume59Issue:2Pages:107-112
AbstractEvident effect of an algicidal bacterium Pseudomonas mendocina on the growth and antioxidant system of Aphanizomenon flos-aquae was detected in this experiment. Seven parameters including the chlorophyll a contents, Fv/Fm values, reactive oxygen species (ROS), malonaldehyde (MDA), catalase (CAT), peroxide dismutase (POD), and superoxide dismutase (SOD) were tested in the cyanobacterium A. flos-aquae cells after inoculation with the algicidal bacterium Pseudomonas mendocina DC10. It was shown from the experiment that the growth of the treated cyanobacterium A. flos-aquae was significantly restrained, which was expressed as great reductions in the chlorophyll a contents and Fv/Fm values. At the same time, the treated cyanobacterial cells exhibited an obvious increase in the production of ROS and MDA compared with the control. CAT and POD activities in the treated group kept at high level, however, they both reduced significantly on day 6. SOD activities in the treated A. flos-aquae showed obvious declines after inoculation, and great augmentations on day 3 and 4, thereafter, they kept in a declining tendency. The results showed the oxidative stresses induced by the bacterium could be a killing agent of the cyanobacterium A. flos-aquae cells.
SubtypeArticle
DOI10.1007/s00284-009-9404-0
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Indexed BySCI
Language英语
WOS Research AreaMicrobiology
WOS SubjectMicrobiology
WOS IDWOS:000267485200003
WOS KeywordOXIDATIVE STRESS ; MICROCYSTIN-RR ; 1ST REPORT ; OXYGEN ; GLUTATHIONE ; RADIATION ; ASCORBATE ; ALGAE ; CELLS
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Cited Times:18[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/27369
Collection水环境工程研究中心_期刊论文
Affiliation1.Chinese Acad Sci, S China Sea Inst Oceanol, Key Lab Trop Marine Environm Dynam, Guangzhou, Guangdong, Peoples R China
2.Univ S China, Sch Urban Construct, Hengyang, Hunan, Peoples R China
3.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Guangzhou, Guangdong, Peoples R China
Recommended Citation
GB/T 7714
Shi, Shunyu,Tang, Dongshan,Liu, Yongding. Effects of an Algicidal Bacterium Pseudomonas mendocina on the Growth and Antioxidant System of Aphanizomenon flos-aquae[J]. CURRENT MICROBIOLOGY,2009,59(2):107-112.
APA Shi, Shunyu,Tang, Dongshan,&Liu, Yongding.(2009).Effects of an Algicidal Bacterium Pseudomonas mendocina on the Growth and Antioxidant System of Aphanizomenon flos-aquae.CURRENT MICROBIOLOGY,59(2),107-112.
MLA Shi, Shunyu,et al."Effects of an Algicidal Bacterium Pseudomonas mendocina on the Growth and Antioxidant System of Aphanizomenon flos-aquae".CURRENT MICROBIOLOGY 59.2(2009):107-112.
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