著者

坂田 泰造 吉川 毅 前田 和孝 カスティーヨ カルメロ・S ドレザ ラウデス・A

出版者

鹿児島大学

雑誌

鹿兒島大學水産學部紀要 (ISSN:0453087X)

巻号頁・発行日

vol.54, pp.35-43, 2005-12-27

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Four microalgal strains, NN-G, TB-G, CC-B, and SC-B isolated from green water of tilapia culture ponds in the Philippines were cultivated in 10ml of ESS liquid medium at 23℃ with a 12h light-12h dark cycle. The cell forms of NN-G and TB-G were green small round and green large oval, respectively, while both CC-B and SC-B had brown cubic or quadrangular cells. Predominant bacteria isolated from the four microalgal cultures were commonly restricted to Moraxella-Acinetobacter group, Pseudomonas and Flavobacterium. Strains NN-G and TB-G contained chlorophyll b, chlorophyll a, violaxanthin and zeaxanthin, while strains CC-B and SC-B possessed chlorophyll c, chlorophyll a, and fucoxanthin as major pigments. Phylogenetic analysis based on SSU rDNA sequences demonstrated that strains NN-G, TB-G, CC-B and SC-B have close taxonomic relationships with Chlorella spp., Tetraselmis spp., Chaetoceros spp., and Chaetocertos spp., respectively.