Effect of Vitamin B12-Enriched Thraustochytrids on the Population Growth of Rotifers

Masahiro HAYASHI; Tsugiyo YUKINO; Fumio WATANABE; Emi MIYAMOTO; Yoshihisa NAKANO

doi:10.1271/bbb.60308

Microbiology & Fermentation Technology Note

Effect of Vitamin B12-Enriched Thraustochytrids on the Population Growth of Rotifers

Masahiro HAYASHI, Tsugiyo YUKINO, Fumio WATANABE, Emi MIYAMOTO, Yoshihisa NAKANO

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Keywords: thraustochytrids, docosahexaenoic acid (DHA), rotifer, vitamin B12

JOURNAL FREE ACCESS

2007 Volume 71 Issue 1 Pages 222-225

DOI https://doi.org/10.1271/bbb.60308

View "Advance Publication" version (January 7, 2007).

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Abstract

Newly isolated thraustochytrids showed uptake of vitamin B12 from the culture into the cells. Cultivation of thraustochytrids in a medium containing 1 μg/ml of vitamin B12 greatly increased the contents of vitamin B12 in the cells. Similarly to Schizochytrium limacinum, odd numbered fatty acids decreased in the cells of new isolates cultivated with vitamin B12. Vitamin B12-enriched thraustochytrids, strain mh0186, enhanced the population growth of rotifers fed on the cells as sole feed.

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