title: The response of epiphytic microbes to habitat and growth status of Potamogeton malaianus Miq. in Lake Taihu.
abstract: To investigate the effects of different habitats and plant growth status on abundance, biomass and community structure of epiphytic microbes, Potamogeton malaianus Miq. at two different habitats (Gonghu Bay and East Taihu) in Lake Taihu were collected in June, August and November (corresponding to the period of development of submerged macrophytes). The relative abundance of major epiphytic algae groups was determined with high performance liquid chromatography (HPLC), and the structures and dynamics of epiphytic bacteria were assessed by terminal restriction fragment length polymorphism (T-RFLP) analysis. Results showed that the biomass of epiphytic microbes was not significant difference between the two sites, and the analysis of similarity found no significant intra-lake heterogeneity in community structure, but the temporal heterogeneity of epiphytic microbes was significant, which linked to the growth state of submerged macrophytes and water temperature. The difference in community structure between June and August was larger than that between August and November at each site, indicating that the growth status of submerged macrophytes has a greater impact on the community structure of epiphytic microbes than the seasonal variation of environmental conditions.
authors: State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, China; Graduate University of Chinese Academy of Sciences, Beijing, China.
authors: Xianlei
authors: X
authors: Cai
authors: Guang
authors: G
authors: Gao
authors: Xiangming
authors: X
authors: Tang
authors: Baili
authors: B
authors: Dong
authors: Jiangyu
authors: J
authors: Dai
authors: Dan
authors: D
authors: Chen
authors: Yuzhi
authors: Y
authors: Song
mesh_terms: D001419:Bacteria / Q000145:classification / Q000166:cytology / Q000235:genetics / Q000254:growth & development*; D058491:Bacterial Load; D018533:Biomass; D002681:China; D000460:Chlorophyta / Q000737:chemistry / Q000254:growth & development* / Q000378:metabolism; D017753:Ecosystem; D060106:Lakes / Q000737:chemistry / Q000382:microbiology*; D018515:Plant Leaves / Q000382:microbiology; D031821:Potamogetonaceae / Q000254:growth & development* / Q000502:physiology
keywords: Epiphytic; Microbial community; Potamogeton malaianus