Morphological variability of colonies of Microcystis morphospecies in culture

The Journal of General and Applied Microbiology

Shigeto Otsuka³  Renhui Li²  Satoshi Matsumoto³  Makoto M. Watanabe⁴  Shoichiro Suda¹ 

[1] Global Environmental Forum;Institute of Biological Science, University of Tsukuba;Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo;National Institute for Environmental Studies

关键词: colony;    cyanobacteria;    Microcystis;    morphospecies;    taxonomy;   

DOI  :  10.2323/jgam.46.39

学科分类：微生物学和免疫学

来源: Applied Microbiology, Molecular and Cellulrar Biosciences Research Foundation

【 摘 要 】

Serial observations were carried out on cultures of five morphospecies of the genus Microcystis Kützing ex Lemmermann 1907, Microcystis aeruginosa (Kützing) Kützing, Microcystis ichthyoblabe Kützing, Microcystis novacekii (Komárek) Compére, Microcystis viridis (A. Brown) Lemmermann, and Microcystis wesenbergii (Komárek) Komárek in Kondratieva. Many strains maintained colony forms characteristic of their morphospecies, and others showed morphological variations, some of which were characteristic of other morphospecies. M. novacekii displayed several morphotypes including some characteristics of M. aeruginosa and M. ichthyoblabe. M. wesenbergii also showed great morphological variability and showed morphotypes characteristic of M. aeruginosa. Distinction among these morphospecies, therefore, seemed to be obscure or impossible. We conclude that the current classification of the genus Microcystis, chiefly based on morphological characteristics, is no longer valid and must be reviewed in light of our observations that one strain may have various colony forms.

【 授权许可】

Unknown