Fatty acid composition of bacteria associated with the toxic dinoflagellate Ostreopsis lenticularis and with caribbean Palythoa species
1998; Wiley; Volume: 33; Issue: 6 Linguagem: Inglês
10.1007/s11745-998-0249-z
ISSN1558-9307
AutoresNéstor M. Carballeira, Anastacio Emiliano, Anthony Sostre, José A. Restituyo, I. Gonzalez, Gretchen M. Colon, Carmen G. Tosteson, Thomas R. Tosteson,
Tópico(s)Alcohol Consumption and Health Effects
ResumoAbstract The fatty acid composition of a Pseudomonas sp. ( Alteromonas ) and its host, the dinoflagellate Ostreopsis lenticularis , vectors in ciguatera fish poisoning, has been studied. The major fatty acids in O. lenticularis were 16∶0, 20∶5n‐3, and 22∶6n‐3, but 18∶2n‐6, 18∶3n‐3, and 18∶n‐3 were also identified. In contrast to other dinoflagellates, 18∶5n‐3 was not detected in O. lenticularis . Even‐chain fatty acids such as 9–16∶1, 11–18∶1, and 13–20∶1 predominated in the Pseudomonas sp. from O. lenticularis , but 16–20% of ( E )‐11‐methyl‐12‐octadecenoic acid was also identified. The chirality of the latter was confirmed by total synthesis (28% overall yield) starting from oxacyclotridecan‐2‐one. The fatty acid compositions of two other Pseudomonas species, from the palytoxin‐producing zoanthids Palythoa mamillosa and P. caribdea , were also studied and were similar to that of the Pseudomonas sp. from O. lenticularis . The possibility of using some of these fatty acids as chemotaxonomic lipids in identifying marine animals that consume toxic dinoflagellates or zoanthids is discussed.
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