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

This article has now been updated. Please use the final version.

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

Author information

Keywords: alginate oligosaccharide, Nannochloropsis oculata, marine microalga, growth-promoting activity, Cu²⁺-stress

JOURNAL FREE ACCESS Advance online publication

Article ID: 80692

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

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

Details

Abstract

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.

Corresponding author

Register with J-STAGE for free!