Growth-Promoting Effect of Alginate Oligosaccharides on a Unicellular Marine Microalga, Nannochloropsis oculata

Takeshi YOKOSE; Toru NISHIKAWA; Yoshiko YAMAMOTO; Yasuhiro YAMASAKI; Kenichi YAMAGUCHI; Tatsuya ODA

doi:10.1271/bbb.80692

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Growth-Promoting Effect of Alginate Oligosaccharides on a Unicellular Marine Microalga, Nannochloropsis oculata

Takeshi YOKOSE, Toru NISHIKAWA, Yoshiko YAMAMOTO, Yasuhiro YAMASAKI, Kenichi YAMAGUCHI, Tatsuya ODA

著者情報

キーワード: alginate oligosaccharide, Nannochloropsis oculata, marine microalga, growth-promoting activity, Cu²⁺-stress

ジャーナルフリー早期公開

論文ID: 80692

DOI https://doi.org/10.1271/bbb.80692

この記事には本公開記事があります。

The final version of this article is now available: Vol. 73 (2009) , No. 2 p.450

詳細

抄録

Effects of an alginate oligosaccharide mixture (AOM) on Nannochloropsis oculata, a unicellular marine microalga, were investigated. The growth of N. oculata was significantly promoted by AOM in a concentration-dependent manner. The maximum effect was attained at 20 mg/ml, at which the growth rate of the alga became nearly 5 times higher than that of control without AOM. The growth-promoting effect of AOM decreased slightly at 40 mg/ml. Furthermore, the algicidal effect of Cu²⁺ was profoundly alleviated by the addition of AOM. These results suggest that AOM is useful for promoting and/or improving the growth of N. oculata.

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