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- Title
Growth and the content of laurinterol and debromolaurinterol in Laurencia okamurae (Ceramiales, Rhodophyta).
- Authors
Kuwano, Kazuyoshi; Matsuka, Shingo; Kono, Shigeki; Ninomiya, Masayori; Onishi, Junichi; Saga, Naotsune
- Abstract
The growth of Laurencia okamurae and the content of laurinterol and debromolaurinterol were influenced by various factors. Temperature influenced growth raere te with a maximum at 25°C, regardless of daylength. Maturity depended on temperature rather than daylength; the plants grew without maturing at 15°C, while the plants matured within two weeks at 25°C. The plants were able to grow at salinities of 14–50‰ with maximum growth at 26‰. The salinities growth rash;50‰te reduced with decreasing concentration of nitrate below 1.2 × 10-3 M, and of total phosphate below 7.5× 10-8 M. Bromide concentration had no effect on growth, and the plants grew without bromide. Variation in temperature between 15–25°C and daylength produced no obvious change in laurinterol and debromolaurinterol contents. On the other hand, an increase in salinity led to an increase for both. The plants cultured in a completely artificial medium, modified ASP12NTA, showed a marked drop in their content of these metabolites. An increase in concentrations of nitrate, total phosphate or bromide did not restore the content.
- Publication
Journal of Applied Phycology, 1998, Vol 10, Issue 1, p9
- ISSN
0921-8971
- Publication type
Article
- DOI
10.1023/A:1008037706596