Taxonomic studies of planktic species of Anabaena based on morphological characteristics in cultured strains |
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| Authors: | Li Renhui Watanabe Masayuki Watanabe Makoto M |
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| Institution: | (1) National Institute for Environmental Studies, Onogawa 16-2, Tsukuba, Ibaraki, 305-0053, Japan;(2) Present address: Department of Biological sciences, Wright State University, Dayton, OH, 45435, U.S.A.;(3) National Science Museum, Amakubo 4-1-1, Tsukuba, Ibaraki, 305, Japan |
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| Abstract: | Fifty (50) strains of planktic species of Anabaena (cyanobacteria), including collections from Japan and China and from different culture collections, were induced to form akinetes at low temperature (15 °C). Their morphologies were then observed and described. Fourty seven strains successfully formed akinetes and these were classified into 20 species comprising seven with straight trichomes and 13 with coiled trichomes. Three strains, which did not form akinetes, were separated into two taxonomic groups, but could not be identified to any described species. In addition, a key to the planktic species of Anabaena described in the study is presented. |
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| Keywords: | Anabaena cyanobacteria identification morphology planktic taxonomy |
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