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学科主题: Marine & Freshwater Biology
题名: Taxonomic re-evaluation of Aphanizomenon flos-aquae NH-5 based on morphology and 16S rRNA gene sequences
作者: Li, RH; Carmichael, WW; Liu, YD; Watanabe, MM
通讯作者: Carmichael, WW, Wright State Univ, Dept Biol Sci, Dayton, OH 45435 USA
关键词: Aphanizomenon ; cyanobacteria ; 16S rRNA ; morphology ; sequences ; taxonomy
刊名: HYDROBIOLOGIA
发表日期: 2000-11-01
卷: 438, 期:1-3, 页:99-105
收录类别: SCI
文章类型: Article
部门归属: Wright State Univ, Dept Biol Sci, Dayton, OH 45435 USA; Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China; Natl Inst Environm Studies, Tsukuba, Ibaraki 3050053, Japan
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
类目[WOS]: Marine & Freshwater Biology
研究领域[WOS]: Marine & Freshwater Biology
摘要: The taxonomy of Aphanizomenon flos-aquae strain NH-5, a producer of cyanotoxins, was re-evaluated by comparison with six other Aphanizomenon strains using morphological characteristics and 16S rRNA gene sequences. Strain NH-5 was concluded to be improperly identified as Aph. flos-aquae based upon (1) lack of bundle formation in the trichomes, (2) location of akinetes next to heterocytes, (3) lower similarities (less than 97.5%) in the 16S rRNA gene sequences relative to Aph. flos-aquae strains, and (4) comparison within a phylogenetic tree constructed from 16S rRNA gene sequences. The Aphanizomenon strains investigated in this study are classified to four morphological groups as described by the classical taxonomy of Komarek & Kovacik (1989). This classification was supported from the phylogenetic results of 16S rRNA gene sequences. This study also discusses the generic boundaries between Aphanizomenon and Anabaena.
英文摘要: The taxonomy of Aphanizomenon flos-aquae strain NH-5, a producer of cyanotoxins, was re-evaluated by comparison with six other Aphanizomenon strains using morphological characteristics and 16S rRNA gene sequences. Strain NH-5 was concluded to be improperly identified as Aph. flos-aquae based upon (1) lack of bundle formation in the trichomes, (2) location of akinetes next to heterocytes, (3) lower similarities (less than 97.5%) in the 16S rRNA gene sequences relative to Aph. flos-aquae strains, and (4) comparison within a phylogenetic tree constructed from 16S rRNA gene sequences. The Aphanizomenon strains investigated in this study are classified to four morphological groups as described by the classical taxonomy of Komarek & Kovacik (1989). This classification was supported from the phylogenetic results of 16S rRNA gene sequences. This study also discusses the generic boundaries between Aphanizomenon and Anabaena.
关键词[WOS]: ALIGNMENT
语种: 英语
WOS记录号: WOS:000166048100008
ISSN号: 0018-8158
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/152342/10054
Appears in Collections:中科院水生所知识产出(2009年前)_期刊论文

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作者单位: 1.Wright State Univ, Dept Biol Sci, Dayton, OH 45435 USA
2.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
3.Natl Inst Environm Studies, Tsukuba, Ibaraki 3050053, Japan

Recommended Citation:
Renhui Li; Wayne W. Carmichael; Yongding Liu & Makoto M. Watanabe.Taxonomic re-evaluation of Aphanizomenon flos-aquae NH-5 based on morphology and 16S rRNA gene sequences,HYDROBIOLOGIA,2000,438(1-3):99-105
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文件名: Taxonomic re-evaluation of Aphanizomenon flos-aquae NH-5 based on morphology and 16S rRNA gene sequences.pdf
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