IHB OpenIR  > 藻类生物学及应用研究中心  > 期刊论文
Sporadic Distribution and Distinctive Variations of Cylindrospermopsin Genes in Cyanobacterial Strains and Environmental Samples from Chinese Freshwater Bodies
Jiang, Yongguang1,2; Xiao, Peng1,2; Yu, Gongliang1; Shao, Jihai3; Liu, Deming4; Azevedo, Sandra M. F. O.5; Li, Renhui1
2014-09-01
Source PublicationAPPLIED AND ENVIRONMENTAL MICROBIOLOGY
ISSN0099-2240
Volume80Issue:17Pages:5219-5230
AbstractIncreasing reports of cylindrospermopsins (CYNs) in freshwater ecosystems have promoted the demand for identifying all of the potential CYN-producing cyanobacterial species. The present study explored the phylogenetic distribution and evolution of cyr genes in cyanobacterial strains and water samples from China. Four Cylindrospermopsis strains and two Raphidiopsis strains were confirmed to produce CYNs. Mutant cyrI and cyrK genes were observed in these strains. Cloned cyr gene sequences from eight water bodies were clustered with cyr genes from Cylindrospermopsis and Raphidiopsis (C/R group) in the phylogenetic trees with high similarities (99%). Four cyrI sequence types and three cyrJ sequence types were observed to have different sequence insertions and repeats. Phylogenetic analysis of the rpoC1 sequences of the C/R group revealed four conserved clades, namely, clade I, clade II, clade III, and clade V. High sequence similarities (>97%) in each clade and a divergent clade IV were observed. Therefore, CYN producers were sporadically distributed in congeneric and paraphyletic C/R group species in Chinese freshwater ecosystems. In the evolution of cyr genes, intragenomic translocations and intergenomic transfer between local Cylindrospermopsis and Raphidiopsis were emphasized and probably mediated by transposases. This research confirms the existence of CYN-producing Cylindrospermopsis in China and reveals the distinctive variations of cyr genes.
SubtypeArticle
Keyword2 German Lakes Aphanizomenon-ovalisporum Toxin Cylindrospermopsin Raciborskii Nostocales Umezakia-natans Cyanotoxins Cylindrospermopsin Raphidiopsis-curvata Northern Australia Climate-change Polish Lakes
DOI10.1128/AEM.00551-14
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Indexed BySCI
Language英语
WOS Research AreaBiotechnology & Applied Microbiology ; Microbiology
WOS SubjectBiotechnology & Applied Microbiology ; Microbiology
WOS IDWOS:000341486500007
WOS Keyword2 GERMAN LAKES ; APHANIZOMENON-OVALISPORUM ; TOXIN CYLINDROSPERMOPSIN ; RACIBORSKII NOSTOCALES ; UMEZAKIA-NATANS ; CYANOTOXINS CYLINDROSPERMOPSIN ; RAPHIDIOPSIS-CURVATA ; NORTHERN AUSTRALIA ; CLIMATE-CHANGE ; POLISH LAKES
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Cited Times:16[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/20399
Collection藻类生物学及应用研究中心_期刊论文
Affiliation1.Chinese Acad Sci, Inst Hydrobiol, Key Lab Algal Biol, Wuhan, Peoples R China
2.Univ Chinese Acad Sci, Beijing, Peoples R China
3.Hunan Agr Univ, Resources & Environm Coll, Changsha, Hunan, Peoples R China
4.Hunan Agr Univ, Hunan Prov Key Lab Crop Germplasm Innovat & Utili, Changsha, Hunan, Peoples R China
5.Univ Fed Rio de Janeiro, Inst Biofis Carlos Chagas Filho, BR-21941 Rio De Janeiro, Brazil
Recommended Citation
GB/T 7714
Jiang, Yongguang,Xiao, Peng,Yu, Gongliang,et al. Sporadic Distribution and Distinctive Variations of Cylindrospermopsin Genes in Cyanobacterial Strains and Environmental Samples from Chinese Freshwater Bodies[J]. APPLIED AND ENVIRONMENTAL MICROBIOLOGY,2014,80(17):5219-5230.
APA Jiang, Yongguang.,Xiao, Peng.,Yu, Gongliang.,Shao, Jihai.,Liu, Deming.,...&Li, Renhui.(2014).Sporadic Distribution and Distinctive Variations of Cylindrospermopsin Genes in Cyanobacterial Strains and Environmental Samples from Chinese Freshwater Bodies.APPLIED AND ENVIRONMENTAL MICROBIOLOGY,80(17),5219-5230.
MLA Jiang, Yongguang,et al."Sporadic Distribution and Distinctive Variations of Cylindrospermopsin Genes in Cyanobacterial Strains and Environmental Samples from Chinese Freshwater Bodies".APPLIED AND ENVIRONMENTAL MICROBIOLOGY 80.17(2014):5219-5230.
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