title: Recruitment of cyanobacteria from the sediments in the eutrophic Shanzi Reservoir.
abstract: This study investigated the impact of four environmental factors on the recruitment of cyanobacteria from bottom sediments in the eutrophic Shanzi Reservoir. Temperature and light were identified as the key determinants for the recruitment of Microcystis and Oscillatoria. Cyanobacteria became dominant at higher temperature (20 °C) and light intensity (2000 lx) and Microcystis and Oscillatoria were the major species. Detailed recruitment simulation undertaken with the respective gradients of temperature and light suggested that both Microcystis and Oscillatoria are temperature sensitive and that their critical temperature point was 10 °C. However, distinct light impacts were observed only on Microcystis. The recruitment of Oscillatoria was light independent, whereas Microcystis had a positive relationship with light intensity. Physical disturbance promoted Microcystis recruitment and also affected the structure of the recruited cyanobacterial community at the water-sediment interface, based on quantitative polymerase chain reaction (qPCR) and phylogenetic analysis.
authors.affiliation: a Environmental Science and Engineering College , Fujian Normal University , Fuzhou 350007 , People's Republic of China.|b Lancaster Environment Centre , Lancaster University , Lancaster LA1 4YW , UK.
authors.forename: Yuping
authors.initials: Y
authors.lastname: Su
authors.affiliation: a Environmental Science and Engineering College , Fujian Normal University , Fuzhou 350007 , People's Republic of China.
authors.forename: Xuejing
authors.initials: X
authors.lastname: You
authors.affiliation: a Environmental Science and Engineering College , Fujian Normal University , Fuzhou 350007 , People's Republic of China.
authors.forename: Hui
authors.initials: H
authors.lastname: Lin
authors.affiliation: a Environmental Science and Engineering College , Fujian Normal University , Fuzhou 350007 , People's Republic of China.
authors.forename: Huiru
authors.initials: H
authors.lastname: Zhuang
authors.affiliation: a Environmental Science and Engineering College , Fujian Normal University , Fuzhou 350007 , People's Republic of China.
authors.forename: Yuan
authors.initials: Y
authors.lastname: Weng
authors.affiliation: a Environmental Science and Engineering College , Fujian Normal University , Fuzhou 350007 , People's Republic of China.|b Lancaster Environment Centre , Lancaster University , Lancaster LA1 4YW , UK.
authors.forename: Dayi
authors.initials: D
authors.lastname: Zhang
mesh_terms: D002681:China; D004269:DNA, Bacterial / Q000235:genetics; D005068:Eutrophication; D019015:Geologic Sediments / Q000382:microbiology*; D008027:Light; D046931:Microcystis / Q000235:genetics / Q000302:isolation & purification*; D054300:Oscillatoria / Q000235:genetics / Q000302:isolation & purification*; D010802:Phylogeny; D016133:Polymerase Chain Reaction; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D013696:Temperature; D014871:Water Microbiology; D014881:Water Supply
chemical_list: D004269:DNA, Bacterial; D012336:RNA, Ribosomal, 16S
keywords: Eutrophication; Microcystis; Oscillatoria; quantitative PCR; recruitment; sediment