16S rDNA sequences and phylogenetic analyses of Microcystis strains with and without phycoerythrin

被引:64
|
作者
Otsuka, S [1 ]
Suda, S
Li, RH
Watanabe, M
Oyaizu, H
Matsumoto, S
Watanabe, MM
机构
[1] Univ Tokyo, Grad Sch Agr & Agr Life Sci, Dept Appl Biol Chem, Bunkyo Ku, Tokyo 1138657, Japan
[2] Global Environm Forum, Tsukuba, Ibaraki 3050053, Japan
[3] Natl Sci Museum, Dept Bot, Tsukuba, Ibaraki 3050005, Japan
[4] Univ Tsukuba, Inst Biol Sci, Tsukuba, Ibaraki 3050006, Japan
[5] Univ Tokyo, Grad Sch Agr & Agr Life Sci, Dept Global Agr Sci, Bunkyo Ku, Tokyo 1138657, Japan
[6] Natl Inst Environm Studies, Tsukuba, Ibaraki 3050053, Japan
关键词
cyanobacterium; Microcystis; 16S rDNA; taxonomy;
D O I
10.1016/S0378-1097(98)00202-X
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
Phylogenetic analyses were carried out on 15 strains of Microcystis, with five morphospecies and including two types of phycobilin pigment composition, by sequence determination of the 16S rDNA (16S rRNA gene). All the sequences showed high similarity, in some cases 100%, similarity, between different morphospecies and phycobilin types. Derived phylogenetic trees revealed a close relationship between Microcystis strains with and without phycoerythrin. The data show that phenotypes of Microcystis is do not necessarily reflect their phylogeny, and that there is a need to reconstruct the present taxonomy at the species level. (C) 1998 Published by Elsevier Science B.V. All rights reserved.
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页码:119 / 124
页数:6
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