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Comparative studies on phosphate utilization of two bloom-forming Microcystis spp. (cyanobacteria) isolated from Lake Taihu (China)
Yue, Tao1,2; Zhang, Delu3; Hu, Chunxiang1; Hu, CX (reprint author), Chinese Acad Sci, Inst Hydrobiol, Key Lab Algal Biol, Wuhan 430072, Peoples R China.
2014-02-01
Source PublicationJOURNAL OF APPLIED PHYCOLOGY
ISSN0921-8971
Volume26Issue:1Pages:333-339
AbstractMicrocystis is a common freshwater bloom-dominating cyanobacterial genus. However, the crucial factors that affect the seasonal succession and extent of dominance of different species remain largely unknown. This study investigated inorganic phosphorus (P) uptake, growth, and P utilization of two dominant Microcystis species from Lake Taihu (China) at different P concentrations and temperatures. Compared with Microcystis wesenbergii, Microcystis flos-aquae had higher maximum uptake rate and luxury storage coefficient. However, M. flos-aquae also had a higher P demand for growth. Under P-rich conditions (64.5 to 174.5 mu M), M. flos-aquae had a higher growth rate (0.16 to 0.21 d(-1)) than M. wesenbergii (0.06 to 0.19 d(-1)) at 22 to 30 A degrees C. M. wesenbergii, with higher phosphate affinity, had a lower P demand to sustain its growth, and yielded a higher growth rate of 0.10 d(-1) at low P concentration (6.5 mu M) at 34 A degrees C, whereas M. flos-aquae had a lower growth rate of 0.03 d(-1). Therefore, M. flos-aquae was dominant in late spring under P-rich conditions, whereas M. wesenbergii prevailed in hot summer after M. flos-aquae decreased under P-limited conditions. These results agree well with their succession patterns in the field. Overall, succession and dominance of M. flos-aquae and M. wesenbergii in Lake Taihu are regulated by P concentration and water temperature.; Microcystis is a common freshwater bloom-dominating cyanobacterial genus. However, the crucial factors that affect the seasonal succession and extent of dominance of different species remain largely unknown. This study investigated inorganic phosphorus (P) uptake, growth, and P utilization of two dominant Microcystis species from Lake Taihu (China) at different P concentrations and temperatures. Compared with Microcystis wesenbergii, Microcystis flos-aquae had higher maximum uptake rate and luxury storage coefficient. However, M. flos-aquae also had a higher P demand for growth. Under P-rich conditions (64.5 to 174.5 mu M), M. flos-aquae had a higher growth rate (0.16 to 0.21 d(-1)) than M. wesenbergii (0.06 to 0.19 d(-1)) at 22 to 30 A degrees C. M. wesenbergii, with higher phosphate affinity, had a lower P demand to sustain its growth, and yielded a higher growth rate of 0.10 d(-1) at low P concentration (6.5 mu M) at 34 A degrees C, whereas M. flos-aquae had a lower growth rate of 0.03 d(-1). Therefore, M. flos-aquae was dominant in late spring under P-rich conditions, whereas M. wesenbergii prevailed in hot summer after M. flos-aquae decreased under P-limited conditions. These results agree well with their succession patterns in the field. Overall, succession and dominance of M. flos-aquae and M. wesenbergii in Lake Taihu are regulated by P concentration and water temperature.
SubtypeArticle
KeywordMicrocystis Growth Rate Temperature Phosphorus Uptake Phosphorus Storage
Department[Yue, Tao; Hu, Chunxiang] Chinese Acad Sci, Inst Hydrobiol, Key Lab Algal Biol, Wuhan 430072, Peoples R China; [Yue, Tao] Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China; [Zhang, Delu] Wuhan Univ Technol, Dept Biol Sci & Biotechnol, Wuhan 430070, Peoples R China
DOI10.1007/s10811-013-0067-7
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Funding OrganizationNational Basic Research Program of China [2008CB418001-1] ; National Basic Research Program of China [2008CB418001-1] ; National Basic Research Program of China [2008CB418001-1] ; National Basic Research Program of China [2008CB418001-1]
Indexed BySCI
Language英语
WOS Research AreaBiotechnology & Applied Microbiology ; Marine & Freshwater Biology
WOS SubjectBiotechnology & Applied Microbiology ; Marine & Freshwater Biology
WOS IDWOS:000330969800037
WOS KeywordENVIRONMENTAL-FACTORS ; BUOYANCY REGULATION ; PHOSPHORUS ; AERUGINOSA ; GROWTH ; CYANOPHYCEAE ; NITROGEN ; PHYTOPLANKTON ; METABOLISM ; DIFFERENCE
Funding OrganizationNational Basic Research Program of China [2008CB418001-1] ; National Basic Research Program of China [2008CB418001-1] ; National Basic Research Program of China [2008CB418001-1] ; National Basic Research Program of China [2008CB418001-1]
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/20115
Collection藻类生物学及应用研究中心_期刊论文
Corresponding AuthorHu, CX (reprint author), Chinese Acad Sci, Inst Hydrobiol, Key Lab Algal Biol, Wuhan 430072, Peoples R China.
Affiliation1.Chinese Acad Sci, Inst Hydrobiol, Key Lab Algal Biol, Wuhan 430072, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
3.Wuhan Univ Technol, Dept Biol Sci & Biotechnol, Wuhan 430070, Peoples R China
Recommended Citation
GB/T 7714
Yue, Tao,Zhang, Delu,Hu, Chunxiang,et al. Comparative studies on phosphate utilization of two bloom-forming Microcystis spp. (cyanobacteria) isolated from Lake Taihu (China)[J]. JOURNAL OF APPLIED PHYCOLOGY,2014,26(1):333-339.
APA Yue, Tao,Zhang, Delu,Hu, Chunxiang,&Hu, CX .(2014).Comparative studies on phosphate utilization of two bloom-forming Microcystis spp. (cyanobacteria) isolated from Lake Taihu (China).JOURNAL OF APPLIED PHYCOLOGY,26(1),333-339.
MLA Yue, Tao,et al."Comparative studies on phosphate utilization of two bloom-forming Microcystis spp. (cyanobacteria) isolated from Lake Taihu (China)".JOURNAL OF APPLIED PHYCOLOGY 26.1(2014):333-339.
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