珠江口水体浮游细菌种群多样性空间分布特征

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Abstract

We investigated the spatial change of bacteriaplankton community structure in the Pearl River Estuary using the denaturing gradient gel electrophoresis(DGGE) and multivariate statistical analysis methods.Results of multidimensional scaling analyses(MDS) were in good agreement with the DGGE band patterns,suggesting that the spatial distribution of bacterial community was significantly different among the investigation stations.Bacterial community had a similar structure between surface and bottom water in most stations,and changed significantly in water layers in the stations of outer estuary.The results also suggested that bacterial community in bottom layer of stations(A14,B6 and C5) had higher diversity than in surface layer.The phylogenetic analysis divided bacteria sequences into five groups,namely Proteobacteria,Acidobacteria,Cyanobacteria,Firmicutes and Actinobacteria,among which Proteobacteria were the dominant bacterial group in the region.In addition,Actinobacteria were also found to be another dominant group in the Pearl River Estuary.

Key words： the Pearl River Estuary bacterial community structure PCR-DGGE multidimensional scaling analysis

Received: 25 December 2011

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	SUN Fu-lin
	WANG You-shao

Cite this article:

SUN Fu-lin,WANG You-shao. Distribution characteristics of bacteriaplankton diversity in the Pearl River Estuary[J]. , 2011, 30(6): 569-574.

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http://www.ecolsci.com/EN/ OR http://www.ecolsci.com/EN/Y2011/V30/I6/569

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