한국수산과학회지 (Korean Journal of Fisheries and Aquatic Sciences)

  • 제32권2호
  • /
  • Pages.160-164
  • /
  • 1999
  • /
  • 0374-8111(pISSN)
  • /
  • 2287-8815(eISSN)
한국수산과학회 (The Korean Society of Fisheries and Aquatic Science)
권호 표지

Alteromonas sp. SR-14에 의한 규조 Chaetoceros calcitrans 증식저해

Growth Inhibition of the Diatom, Chaetoceros calcitrans by Alteromonas sp. SR-14

  • KIM Ji Hoe (National Fisheries Research and Development Institute) ;
  • PARK Hi Yun (National Fisheries Research and Development Institute) ;
  • CHO Yong Chul (National Fisheries Research and Development Institute) ;
  • CHO Myo Heon (Nursing Department Masan College) ;
  • CHANG Dong Suck (Department of Food Science and Technology, Pukyong National University)
  • 발행 : 1999.03.01
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초록

해양 세균을 이용하여 규조류, Chaetoceros spp. 적조의 방제기술 개발을 위한 목적의 일환으로 우리나라 연안에서 분리된 Alteromonas sp. SR-14가 여러 가지 조건하에서 Chaetoceros calcitrans의 증식에 미치는 영향을 조사하였으며 그 결과를 요약하면 다음과 같다. Alteromonas sp. SR-14를 C. calcitrans와 혼합배양하였을 때 조류 증식 저해활성은 $20^{\circ}C$에서는 강하였으나 $25^{\circ}C$ 이상에서는 활성이 없었다. 그리고 C. calcitrans의 초기농도가 약 $10^4$ cells/ml이었을 때 Alteromonas sp. SR-14를 10 cells/ml 이하만 접종하여도 증식을 저해하였다. Alteromonas sp. SR-14는 대수기의 C. calcitrans에 대해서 저해 활성이 강하였고, 무기 영양염의 첨가나 1,300$\~$4,600 lux에서 조도변화 및 200 rpm으로의 진탕 등의 배양조건은 세균의 조류증식 저해활성에 영향을 미치지 않았다.

Algicidal activities of Alteromonas sp. SR-14 against Chaetoceros calcitrans were investigated at various culture conditions. The algicidal activity by Alteromonas sp. SK-14 was dependent on temperature. In mixed culture of C, calcitrans and Alteromonas sp. SR-14 at various temperatures, the algicidal activity of Alteronzonas sp. SR-14 was the highest at $20^{\circ}C$, but not showed algicidal activity above $25^{\circ}C$. With the inoculation of $10^4$ cells/ml of C. calcitrans, the diatom could not grow at the microalgal culture condition until 15 days by the simultaneous inoculation of less than 10 cells/ml of Alteromonas sp. SR-14. Alteromonas sp. SR-14 showed the strongest algicidal activity against logarithmic phase cells of C. calcitrans. During the mixed culture of C. calcitrans and Alteromonas sp. SR-14, supplementation of Conwy medium nutrients, changes of light intensity with 1,300$\~$4,600 lux and agitation with 200 rpm did not affect the algicidal activity.

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