Journal of Life Science (생명과학회지)

Korean Society of Life Science (한국생명과학회)
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Characterization of Pigment-Producing Pseudoalteromonas spp. from Marine Habitats and Their Optimal Conditions for Pigment Production

해양환경에서 분리한 Pseudoalteromonas 속 균주들의 특징 및 색소 생성 최적 조건

  • Published : 2008.12.30
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Abstract

Three marine bacteria producing pigments were isolated from seawater of Jeju-Do and local solar saltern in Korea. Based on phenotypic characteristics and 16S rRNA sequence analysis, the strains were identified as Pseudoalteromonas spp., which produced red (Ju11-1), yellow (Ju14), and orange (TA20) pigments. The pigments showed UV absorption maxima at 537, 378 and 387 nm, respectively. The strains were growing well on Marine broth 2216 culture medium. The productivity of pigments reached the maximum value after 28 hours (Ju11-1, Ju14) and 24 hours (TA20) at $30^{\circ}C$, 2% NaCl and pH 6-7. The best pigment production of strains were supported by 1% of lactose (Ju11-1) and maltose (Ju14, TA20) as a carbon source and 1% of beef extract as a nitrogen source.

한국의 제주도와 서해안 염전의 해수로 부터 각각 빨강 (JU11-1), 노랑(JU14), 주황(TA20)의 색소를 생성하는 3 균주를 분리하였으며, 이들의 분류학적 특성 및 16S rRNA 서열 분석 결과 3 균주 모두 Pseudoalteromonas 속 세균으로 밝혀졌다. 이들 각각의 색소 최대 흡수파장은 각각 537, 378, 387 nm로 나타났다. 균주는 Marine broth 2216에서 잘 자랐으며, $30^{\circ}C$, 2% NaCl, pH 6-7 의 조건에서 Ju11-1과 Ju14는 배양 24 시간에, TA20은 배양 28 시간에 최대 색소 생성을 나타냈다. 탄소원으로 maltose를 1% 첨가하였을 경우 색소 생성이 우수하였으며, 질소원으로는 beef extract를 1% 첨가하였을 경우 최적의 색소 생성을 나타냈다.

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References

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