标题：Molecular Identification of the Colony-Associated Cultivable Bacteria of the Cyanobacterium Microcystis aeruginosa and Their Effects on Algal Growth
摘要：Fourteen bacteria were isolated from a natural bloom of Microcystis aeruginosa colonies collected from Lake Taihu. According to 16S rDNA sequence analysis, seven isolates were related to Alphaproteobacteria including the genera Erythromicrobium, Porphyrobacter, Sphingomonas, Sandarakinorhabdus, Afipia, and two unclassified genera. Six isolates were affiliated with the genera Aquimonas, Pseudomonas, Acinetobacter, and Stenotrophomonas of the Gammaproteobacteria group. One isolate was related to Sphingomonadales (Betaproteobacteria). In subsequent assays, the bacterial isolates variously affected the growth of M. aeruginosa (i.e., positively or negatively). All bacterial isolates were able to grow in a medium in which the only carbon source was filtrate of the M. aeruginosa culture, indicating that these bacteria may be associated with M. aeruginosa not only as a substrate for colonization but also as energy source.
