| Title | Isolation of a Bacterium That Inhibits the Growth of Anabaena cylindrica |
|---|---|
| Author | Kim, Chul Ho¹· Leem, Mi Hyea · Choi, Yong Keel * |
| Address | ¹Water Resources Research Center, Korea Water Resources Corporation; Departmemt of Biology, College of Natural Sciences, Hanyang University; Research Center for Molecular Microbiology, Seoul National University |
| Bibliography | Journal of Microbiology, 35(4),284-289, 1997, |
| DOI | |
| Key Words | Cyanobacteria, Moracella sp., growth-inhibition |
| Abstract | A Gram (-), rod-shaped bacterium 2.3~2.8×0.45㎛ in size which exhibited growth-inhibiting effects against a cyanobacterium (Anabaena cylindrica) was isolated from Daechung Dam Reservoir. This isolate was identified as Moraxella sp. and designated Moracella sp. CK-1. Hollow zones formed around bacterial colonies on the cyanobacterial lawn. In a mixed-culture of A. cylindrica and the isolate, each microorganism grew inverse-proportionally, and the cyanobacterial vegetative cells completely disappeared within 24 hours. On treatment with Moraxella sp. CK-1, cell walls of A. cylindrica disappeared, but sheathes remained in a more electron dense form. The unit membrane such as thylakoidal membrane was stable to bacterial lysing activity. This bacterium showed a broad action spectrum against cyanobacteria. The growth-inhibiting activity of Moracella sp. CK-1 against A. cylindrica is believed to be performed through the excretion of active substances. |
| Download PDF | Eng_350407_284-289p.pdf |