title: Effect of cobalt ions on the metabolism of some volatile and polar compounds in the marine invertebrates Mytilus galloprovincialis and Actinia equina.
abstract: The compositions of the volatile and polar fractions from two coexisting Black Sea invertebrates, the mussel Mytilus galloprovincialis and the beadlet anemone Actinia equina, were established. The main metabolites in the volatile fraction from the investigated animals appeared to be methyl esters of fatty acids and fatty aldehydes. In the polar fraction from both animals low concentrations of free acids and nitrogen-containing compounds were obtained. Free carbohydrates were in much higher concentrations in M. galloprovincialis than in A. equina. Some sterols, probably as polar conjugates, were identified mainly in A. equina. Significant changes among all compounds appeared after treatment of both invertebrates with two different concentrations of cobalt ions. The variety of changes in each invertebrate could be due to their different evolutionary status. The effect of cobalt ions was often stronger at medium cobalt-ion concentrations.
authors.affiliation: Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Sofia, Bulgaria. jordan@orgchm.bas.bg
authors.forename: Jordan
authors.initials: J
authors.lastname: Nechev
authors.forename: Kamen
authors.initials: K
authors.lastname: Stefanov
authors.forename: Diana
authors.initials: D
authors.lastname: Nedelcheva
authors.forename: Simeon
authors.initials: S
authors.lastname: Popov
mesh_terms: D000818:Animals; D005075:Biological Evolution; D002241:Carbohydrates / Q000032:analysis; D003035:Cobalt / Q000009:adverse effects / Q000494:pharmacology*; D005227:Fatty Acids / Q000032:analysis / Q000737:chemistry / Q000378:metabolism; D008401:Gas Chromatography-Mass Spectrometry; D007477:Ions; D049878:Mytilus / Q000737:chemistry* / Q000187:drug effects / Q000378:metabolism*; D012615:Sea Anemones / Q000737:chemistry* / Q000187:drug effects / Q000378:metabolism*; D013261:Sterols / Q000032:analysis / Q000378:metabolism; D014835:Volatilization; D014874:Water Pollutants, Chemical / Q000009:adverse effects / Q000494:pharmacology
chemical_list: D002241:Carbohydrates; D005227:Fatty Acids; D007477:Ions; D013261:Sterols; D014874:Water Pollutants, Chemical; D003035:Cobalt