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题名: Distribution and population dynamics of potential anatoxin-a-producing cyanobacteria in Lake Dianchi, China
作者: Wang, Suqin1, 2; Zhu, Lin1, 2; Li, Qi3; Li, Genbao1; Li, Lin1; Song, Lirong1; Gan, Nanqin1
关键词: Anatoxin-a ; Aphanizomenon ; Anabaena ; Quantitative PCR ; Lake Dianchi
刊名: HARMFUL ALGAE
发表日期: 2015-09-01
DOI: 10.1016/j.hal.2015.07.005
卷: 48, 页:63-68
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
类目[WOS]: Marine & Freshwater Biology
研究领域[WOS]: Marine & Freshwater Biology
英文摘要: The occurrence of cyanobacterial blooms is often accompanied by a variety of toxic secondary metabolites known as cyanotoxins. Anatoxin-a (ATX-a) is a highly toxic cyanobacterial neurotoxin synthesized by numerous species (e.g., Aphanizomenon, Anabaena and Oscillatoria) that has received much public attention. In this study, we used molecular methods (PCR and qPCR) to track the presence and dynamics of ATX-a-producing cyanobacteria, Aphanizomenon and Anabaena in Lake Dianchi, China based on the anaC and cpcBA-IGS genes over a 23-month period (from June 2010 to April 2012). Results revealed that Aphanizomenon was the major potential ATX-a producer in Lake Dianchi and that they were most abundant in early spring and least abundant in summer, coinciding with observed Aphanizomenon blooms. It was found that the proportion of ATX-a toxigenic cells was lower in the northern part of the lake (2.1%) than the middle (16.7%) and southern parts (19.2%). The information on the spatio-temporal distributions of ATX-a-producing cyanobacteria obtained in this study will help to build management strategies to improve water quality for public health. (C) 2015 Elsevier B.V. All rights reserved.
关键词[WOS]: APHANIZOMENON-FLOS-AQUAE ; TOXIC CYANOBACTERIA ; HOMOANATOXIN-A ; 1ST REPORT ; ANABAENA ; NEUROTOXIN ; CHROMATOGRAPHY ; BIOSYNTHESIS ; TEMPERATURE ; DIVERSITY
语种: 英语
WOS记录号: WOS:000361251800008
ISSN号: 1568-9883
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/27208
Appears in Collections:藻类生物学及应用研究中心_期刊论文

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作者单位: 1.Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Wuhan Foreign Language Sch, Wuhan 430022, Peoples R China
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