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- W2079207956 abstract "MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout the JournalEditorsTheme Sections MEPS 400:63-73 (2010) - DOI: https://doi.org/10.3354/meps08381 Odour compounds of the diatom Cocconeis scutellum: effects on benthic herbivores living on Posidonia oceanica Friedrich Jüttner1, Patrizia Messina2, Carmela Patalano2, Valerio Zupo2,* 1Institute of Plant Biology, Limnology, University of Zürich, Seestrasse 187, 8802 Kilchberg, Switzerland 2Stazione Zoologica Anton Dohrn, Functional and Evolutionary Ecology Laboratory, Punta San Pietro, 80077 Ischia, Italy *Corresponding author. Email: vzupo@szn.it ABSTRACT: Polyunsaturated aldehydes released by marine planktonic diatoms upon wounding have been extensively studied since the discovery that they reduce the hatching success of copepods. Diatoms are also abundant in benthic marine ecosystems. For this reason we investigated the presence and the possible ecological roles of Cocconeis scutellum parva, a diatom found tightly attached to the leaves of Posidonia oceanica. This diatom was previously demonstrated to play an important trophic role for the shrimp Hippolyte inermis, by influencing its sex reversal. In the present study, C. scutellum parva was isolated and cultivated and the volatile compounds released upon cell disintegration were identified by mass-spectrometric methods. We demonstrated the presence of unsaturated aldehydes with chain lengths from C5 to C10. Unexpectedly, we found C6 compounds represented by 3(Z)-hexenal, 2(E)-hexenal, hexanal and hexanol-1 that resemble the typical bouquet observed in higher plants. Compounds not described before for diatoms were, among others, pentane-2,3-dione and octane-2,3-dione. Food choice experiments performed on 17 animal species associated with P. oceanica meadows indicated that these grazers recognise the presence of the odour compounds, exhibiting complex patterns of reactions according to their life strategies. The mosaic of results obtained at various concentrations, in different species, indicated that wound-activated infochemicals generate a web of communication among diatoms and benthic invertebrates. KEY WORDS: Infochemical · Odour · Seagrass · Behaviour · Feeding · Wounding · Diatom Full text in pdf format PreviousNextCite this article as: Jüttner F, Messina P, Patalano C, Zupo V (2010) Odour compounds of the diatom Cocconeis scutellum: effects on benthic herbivores living on Posidonia oceanica. Mar Ecol Prog Ser 400:63-73. https://doi.org/10.3354/meps08381 Export citation RSS - Facebook - Tweet - linkedIn Cited by Published in MEPS Vol. 400. Online publication date: February 11, 2010 Print ISSN: 0171-8630; Online ISSN: 1616-1599 Copyright © 2010 Inter-Research." @default.
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- W2079207956 title "Odour compounds of the diatom Cocconeis scutellum: effects on benthic herbivores living on Posidonia oceanica" @default.
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