title: PLASTICITY OF OXYLIPIN METABOLISM AMONG CLONES OF THE MARINE DIATOM SKELETONEMA MARINOI (BACILLARIOPHYCEAE)(1).
abstract: Diatom oxylipins have been observed to deleteriously impact copepod reproductive success. However, field studies have revealed very variable and case-dependent results. Therefore, the plasticity of diatom oxylipin metabolism was studied among four clones of the marine diatom Skeletonema marinoi Sarno et Zingone. Diatom oxylipin metabolism was studied by two lipoxygenase (LOX) activity assays carried out at different pH values and by oxylipin quantification. The four clones showed no major metabolic differences in terms of protein content or growth rate. However, two of the clones produced significantly higher levels of oxylipins than the other two. LOX activity measurements also indicated clonal variability in fatty acid oxidative metabolism. The presence of clone-specific differences in oxylipin metabolism may play a role in shaping diatom population dynamics by conferring selective advantages to certain clones.
authors.affiliation: Functional and Evolutionary Ecology Laboratory, Stazione Zoologica Anton Dohrn, Villa Comunale 1, 80121 Naples, ItalyCNR-Institute Biomolecular Chemistry, Via Campi Flegrei 34, 80078 Pozzuoli (Naples), Italy.
authors.forename: Andrea
authors.initials: A
authors.lastname: Gerecht
authors.affiliation: Functional and Evolutionary Ecology Laboratory, Stazione Zoologica Anton Dohrn, Villa Comunale 1, 80121 Naples, ItalyCNR-Institute Biomolecular Chemistry, Via Campi Flegrei 34, 80078 Pozzuoli (Naples), Italy.
authors.forename: Giovanna
authors.initials: G
authors.lastname: Romano
authors.affiliation: Functional and Evolutionary Ecology Laboratory, Stazione Zoologica Anton Dohrn, Villa Comunale 1, 80121 Naples, ItalyCNR-Institute Biomolecular Chemistry, Via Campi Flegrei 34, 80078 Pozzuoli (Naples), Italy.
authors.forename: Adrianna
authors.initials: A
authors.lastname: Ianora
authors.affiliation: Functional and Evolutionary Ecology Laboratory, Stazione Zoologica Anton Dohrn, Villa Comunale 1, 80121 Naples, ItalyCNR-Institute Biomolecular Chemistry, Via Campi Flegrei 34, 80078 Pozzuoli (Naples), Italy.
authors.forename: Giuliana
authors.initials: G
authors.lastname: d'Ippolito
authors.affiliation: Functional and Evolutionary Ecology Laboratory, Stazione Zoologica Anton Dohrn, Villa Comunale 1, 80121 Naples, ItalyCNR-Institute Biomolecular Chemistry, Via Campi Flegrei 34, 80078 Pozzuoli (Naples), Italy.
authors.forename: Adele
authors.initials: A
authors.lastname: Cutignano
authors.affiliation: Functional and Evolutionary Ecology Laboratory, Stazione Zoologica Anton Dohrn, Villa Comunale 1, 80121 Naples, ItalyCNR-Institute Biomolecular Chemistry, Via Campi Flegrei 34, 80078 Pozzuoli (Naples), Italy.
authors.forename: Angelo
authors.initials: A
authors.lastname: Fontana
keywords: Skeletonema marinoi; aldehydes; biodiversity; copepods; diatoms; lipoxygenase; oxylipins; toxicity