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Effects of interspecific interactions between Microcystis aeruginosa and Chlorella pyrenoidosa on their growth and physiology
Zhang, Min; Kong, Fanxiang; Xing, Peng; Tan, Xiao
Corresponding AuthorKong, Fanxiang(fxkong@niglas.ac.cn)
2007
Source PublicationINTERNATIONAL REVIEW OF HYDROBIOLOGY
ISSN1434-2944
Volume92Issue:3Pages:281-290
AbstractInteractions between Microcystis aeruginosa and Chlorella pyrenoidosa were analyzed by flow cytometry and by phytoplankton pulse-amplitude-modulated fluorimetry (Phyto-PAM) in joint cultures as well as in cultures separated by dialysis membranes. Results showed that the growth of C. pyrenoidosa was greater than that of M. aeruginosa, and that the growth of M. aeruginosa but not the growth of C. pyrenoidosa was significantly inhibited by the interactions between M. aeruginosa and C. pyrenoidosa. Culture filtrates of these two algae showed no apparent effects on the growth of the competing species. For M. aeruginosa, decreases in esterase activity, chlorophyll a fluorescence, and maximum quantum yield were observed in joint cultures, indicating that the metabolic activity and photosynthetic capacity of M. aeruginosa were suppressed. Light limitation from the shading effect of C. pyrenoidosa may be the main reason for such inhibition. For C. pyrenoidosa, esterase activity was suppressed in membrane-separated and joint cultures, suggesting that C. pyrenoidosa was probably affected by allelopathic substances secreted by M. aeruginosa. However, no significant difference was observed in the chlorophyll a fluorescence and maximum quantum yield of C. pyrenoidosa in the two cultures. In addition, interspecific interactions induced a reduction in size in both M. aeruginosa and C. pyrenoidosa, which may contribute to the development of C. pyrenoidosa dominance in the present study.
Keywordflow cytometry phyto-PAM interspecific interaction maximum quantum yield metabolic activity
DOI10.1002/iroh.200610927
Indexed BySCI
Language英语
WOS Research AreaMarine & Freshwater Biology
WOS SubjectMarine & Freshwater Biology
WOS IDWOS:000247622800005
PublisherWILEY-BLACKWELL
Citation statistics
Cited Times:21[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/126194
Collection中国科学院金属研究所
Corresponding AuthorKong, Fanxiang
Affiliation1.Chinese Acad Sci, Nanjing Inst Geography & Limnol, Nanjing 210008, Peoples R China
2.Grad Sch Chinese Acad Sci, Beijing 100039, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Min,Kong, Fanxiang,Xing, Peng,et al. Effects of interspecific interactions between Microcystis aeruginosa and Chlorella pyrenoidosa on their growth and physiology[J]. INTERNATIONAL REVIEW OF HYDROBIOLOGY,2007,92(3):281-290.
APA Zhang, Min,Kong, Fanxiang,Xing, Peng,&Tan, Xiao.(2007).Effects of interspecific interactions between Microcystis aeruginosa and Chlorella pyrenoidosa on their growth and physiology.INTERNATIONAL REVIEW OF HYDROBIOLOGY,92(3),281-290.
MLA Zhang, Min,et al."Effects of interspecific interactions between Microcystis aeruginosa and Chlorella pyrenoidosa on their growth and physiology".INTERNATIONAL REVIEW OF HYDROBIOLOGY 92.3(2007):281-290.
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