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Characteristics of Carbon Source Utilization by Heterotrophic Bacteria Isolated from Internal Organs of Starfish (Asterias amurensis)  

이건형 (군산대학교 자연과학대학 과학기술학부)
송경자 (군산대학교 자연과학대학 과학기술학부)
이오형 (목포대학교 자연과학대학 생물학과)
최문술 (해양과학대학, 해양생명과학부)
Publication Information
Korean Journal of Microbiology / v.38, no.2, 2002 , pp. 57-61 More about this Journal
Abstract
To investigate the characteristics of carbon sources utilization by the intestinal microflora of starfish, starfishes (Asterias amurensis) were collected from the South Sea near Jangheung-gun sumun-ri of Jeollanam-do on July 14,2000. The population densities of heterotrophic bacteria were in the range of $8.65{\pm}0.65{\times}10^3\cfu{\cdot}g^{-1}$ in the interval organs of starfish. Total 24 strains (Gram-negative bacteria. 11 strains, Gram-positive bacteria: 13 strains) from the internal organs of starfish were isolated. Dominant bacteria were Genus nbrio, Staphylococcus, and Corynebacterium. A high percentage of isolates was Gram positive rods. The catalase and oxidase positive were shown 54.2% and 20.8% of isolated bacteria, respectively. Isolated Gram negative and positive bacteria utilized various carbon sources. Among them, glucose could be utilized by all the isolated Gram negative bacteria, and sucrose, mannose, and maltose were utilized by a relatively high percentage of isolates. On the other hands, adipate and phenyl acetate were shown no utilization. In case of Gram positive bacteria, glucose was shown the highest utilization and the next highest utilization was fructose, trehalose, and maltose.
Keywords
carbon utilization; population density; starfish (Asterias amurensis);
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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