DOMOIC ACID PRODUCTION IN NITZSCHIA SP. (BACILLARIOPHYCEAE) ISOLATED FROM A SHRIMP-CULTURE POND IN DO SON, VIETNAM
Version of Record online: 7 JUL 2008
Journal of Phycology
Volume 36, Issue 6, pages 1057–1060, December 2000
How to Cite
Kotaki, Y., Koike, K., Yoshida, M., Van Thuoc, C., Huyen, N. T. M., Hoi, N. C., Fukuyo, Y. and Kodama, M. (2000), DOMOIC ACID PRODUCTION IN NITZSCHIA SP. (BACILLARIOPHYCEAE) ISOLATED FROM A SHRIMP-CULTURE POND IN DO SON, VIETNAM. Journal of Phycology, 36: 1057–1060. doi: 10.1046/j.1529-8817.2000.99209.x
- Issue online: 7 JUL 2008
- Version of Record online: 7 JUL 2008
- 1Received 22 November 1999. Accepted 3 August 2000.
- amnesic shellfish poisoning;
- benthic diatom;
- domoic acid;
- Nitzschia sp;
Domoic acid (DA), a neuroexcitatory amino acid, was detected in batch culture of the newly recognized species Nitzschia navis-varingica Lundholm et Moestrup. The production of DA by this diatom was confirmed by electrospray ionization mass spectrometry. The diatom was collected from a shrimp-culture pond in Do Son, Vietnam. The production of DA (1.7 pg·cell−1) is within the levels reported for Pseudo-nitzschia multiseries (Hasle) Hasle. The DA production started during the late exponential growth phase and reached a maximum during the early stationary growth phase. Maximum DA levels in the axenic culture decreased to about half that of the nonaxenic culture (0.9 pg·cell−1 vs. 1.7 pg·cell−1), suggesting that DA production by the new species is influenced by bacteria.