First report of bloom forming cyanobacterial species Chrysosporum ovalisporum in China

Chrysosporum ovalisporum (Forti) Zapomelová et al. is a common bloom forming species in Australia and the Mediterranean region of Europe. Until now, however, there have been no reports of C. ovalisporum (Forti) Zapomelová et al. in China. Here, one cultured C. ovalisporum strain (CFWA01007) was isolated from field samples collected from Lake Dishui in Shanghai City. A detailed morphological description of C. ovalisporum(Forti) Zapomelová et al. was determined using light microscopy. Phylogenetic analysis based on 16S rRNA confirmed this Chinese strain to be tightly grouped with strains from Europe and North America. Furthermore, the morphological features of this geographical strain were compared with other strains and its ecological features were summarized.