Co-occurrence of phycocyanin- and phycoerythrin-rich Synechococcus in subtropical estuarine and coastal waters of Hong Kong
Liu, Hongbin1; Jing, Hongmei1,2; Wong, Thomas H. C.1; Chen, Bingzhang1,3
2014-02-01
发表期刊ENVIRONMENTAL MICROBIOLOGY REPORTS
卷号6期号:1页码:90-99
摘要Phylogenetic diversity of Synechococcus with different pigmentation in subtropical estuarine and coastal waters of Hong Kong was revealed by the phylogeny of cpcBA and cpeBA operons encoding for phycocyanin (PC) and phycoerythrin (PE). Synechococcus containing only PC (PC-rich Synechococcus) dominated at the estuarine station in summer, whereas PE-rich marine Synechococcus containing both PC and PE (PE-rich Synechococcus) dominated in the coastal waters. Our PC sequences are closely related to freshwater strains but differed from Baltic Sea strains, implying that they were from river discharge. Among PE-rich Synechococcus, clones grouping with strains containing only phycoerythrobilin (PEB-only) were abundant in July, while clones grouping with strains possessing a low content of phycourobilin (PUB) in addition to PEB (low PUB/PEB) were more abundant in January at both stations. Clones of high PUB/PEB types were only presented at the coastal station, but were not detected at the estuarine station. The much higher diversity of both PC-rich and PE-rich Synechococcus, as compared with the Baltic Sea, and the occurrence of the high PUB/PEB strains indicate the high dynamic nature of this subtropical estuarine-coastal environment with strong mixing of water masses ranging from Pearl River plume to oceanic South China Sea water. Our results of phylogenetic study agreed well with flow cytometric counts, which revealed the coexistence of PC-rich and PE-rich Synechococcus in the subtropical coastal waters and the dominance of the former type in the estuarine waters during summer high freshwater discharge. These results indicate that picocyanobacteria, particularly PC-rich Synechococcus, which has long been overlooked, are an important part of the primary production, and they could play an important role in the microbial food web in estuarine ecosystems.
文章类型Article
WOS标题词Science & Technology ; Life Sciences & Biomedicine
DOI10.1111/1758-2229.12111
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收录类别SCI
语种英语
关键词[WOS]TRANSCRIBED SPACER SEQUENCES ; 16S RIBOSOMAL-RNA ; MARINE SYNECHOCOCCUS ; FLOW-CYTOMETRY ; PHYLOGENETIC DIVERSITY ; PHYTOPLANKTON GROWTH ; TEMPORAL VARIATION ; MISSISSIPPI RIVER ; PACIFIC-OCEAN ; SEA
WOS类目Environmental Sciences ; Microbiology
WOS记录号WOS:000329820500010
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被引频次:12[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
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条目标识符http://ir.idsse.ac.cn/handle/183446/759
专题深海科学研究部_深海生物学研究室_海洋微生物分子生态学研究组
作者单位1.Hong Kong Univ Sci & Technol, Div Life Sci, Kowloon, Hong Kong, Peoples R China
2.Chinese Acad Sci, Sanya Inst Deep Sea Sci & Engn, Sanya 572000, Peoples R China
3.Xiamen Univ, Coll Environm & Ecol, State Key Lab Marine Environm Sci, Xiamen, Peoples R China
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Liu, Hongbin,Jing, Hongmei,Wong, Thomas H. C.,et al. Co-occurrence of phycocyanin- and phycoerythrin-rich Synechococcus in subtropical estuarine and coastal waters of Hong Kong[J]. ENVIRONMENTAL MICROBIOLOGY REPORTS,2014,6(1):90-99.
APA Liu, Hongbin,Jing, Hongmei,Wong, Thomas H. C.,&Chen, Bingzhang.(2014).Co-occurrence of phycocyanin- and phycoerythrin-rich Synechococcus in subtropical estuarine and coastal waters of Hong Kong.ENVIRONMENTAL MICROBIOLOGY REPORTS,6(1),90-99.
MLA Liu, Hongbin,et al."Co-occurrence of phycocyanin- and phycoerythrin-rich Synechococcus in subtropical estuarine and coastal waters of Hong Kong".ENVIRONMENTAL MICROBIOLOGY REPORTS 6.1(2014):90-99.
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