期刊
HARMFUL ALGAE
卷 82, 期 -, 页码 1-8出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.hal.2018.12.005
关键词
Toxic dinoflagellates; Azadinium; Amphidoma; Azaspiracid shellfish poisoning (AZP); LC-MS/MS; CID spectrum
资金
- Helmholtz-Gemeinschaft Deutscher Forschungszentren through the research program PACES II of the Alfred Wegener Institut-Helmholtz Zentrum fur Polar- und Meeresforschung
- binational project CONICYT-BMBF [2011-504, CHL 11/011 (01DN12102)]
- BMBF project RIPAZA [03F0763A]
Two novel azaspiracids (AZA) with a molecular mass of 869 Da were found in Pacific strains of Azadinium poporum and characterized by tandem mass spectrometry and high resolution mass spectrometry (HRMS). One compound, AZA-42, was found in Az. poporum strains AZFC25 and AZFC26, both isolated from the South China Sea. AZA-42 belongs to the 360-type AZA that in comparison to AZA-1 has an additional double bond in the F-I ring system of AZA comprising C28-C40. The other compound, AZA-62, was detected in Az. poporum strain 1D5 isolated off Chanaral, Northern Chile. Mass spectral data indicate that AZA-62 is a variant of AZA-11 with an additional double bond in the C1-C9 region of AZA. In addition to the description of the two novel AZA, a comprehensive list of all AZA known to be produced by species of the genera Azadinkon and Amphidoma comprising 26 AZA variants is presented.
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