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Marine fungal communities in water and surface sediment of a sea cucumber farming system: habitat-differentiated distribution and nutrients driving succession

文献类型: 外文期刊

作者: Guo, Xiaohong 1 ; Zhang, Qianqian 1 ; Zhang, Xiaoli 1 ; Zhang, Jiasong 3 ; Gong, Jun 1 ;

作者机构: 1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Lab Microbial Ecol & Matter Cycles, Yantai 264003, Peoples R China

2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China

3.Chinese Acad Fishery Sci, South China Sea Fisheries Res Inst, Guangzhou 510300, Peoples R China

关键词: Mariculture;Microbial diversity;Nutrient;18S rDNA;Zoosporic fungi

期刊名称:FUNGAL ECOLOGY ( 影响因子:3.404; 五年影响因子:4.647 )

ISSN:

年卷期:

页码:

收录情况: SCI

摘要: The planktonic and benthic fungi in a sea cucumber farming system were simultaneously investigated on three sampling dates. Analyses of SSU rRNA gene libraries of four samples revealed 131 fungal operational taxonomic units, of which 58 % were potentially novel. Chytridiomycota, Blastocladiomycota and Monoblepharidomycota were detected only from sediment, whereas ascomycetes and basidiomycetes dominated in sediment and water, respectively. Cryptomycota phylotypes were detected in both water and sediment samples. Based on terminal-restriction fragment length polymorphisms, distinct succession and contrasting community structure were found between planktonic and benthic habitats. Redundancy analysis indicated that the concentration of dissolved silicate in surface water and N:P in porewater were the most significant abiotic variables shaping the planktonic and benthic communities, respectively. This study indicates that plankton and benthos are distinct habitats for fungal distribution even in shallow coastal systems, and nutrients and stoichiometric ratios play important roles in driving succession of fungal communities. (C) 2014 Elsevier Ltd and The British Mycological Society. All rights reserved.

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