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Verfasst von:Hird, Cameron [VerfasserIn]   i
 Jékely, Gáspár [VerfasserIn]   i
 Williams, Elizabeth A. [VerfasserIn]   i
Titel:Microalgal biofilm induces larval settlement in the model marine worm Platynereis dumerilii
Verf.angabe:Cameron Hird, Gáspár Jékely and Elizabeth A. Williams
E-Jahr:2024
Jahr:18 September 2024
Umfang:18 S.
Illustrationen:Illustrationen
Fussnoten:Gesehen am 19.02.2025
Titel Quelle:Enthalten in: Royal Society (London)Royal Society Open Science
Ort Quelle:London : Royal Soc. Publ., 2014
Jahr Quelle:2024
Band/Heft Quelle:11(2024), 9, Artikel-ID 240274, Seite 1-18
ISSN Quelle:2054-5703
Abstract:A free-swimming larval stage features in many marine invertebrate life cycles. To transition to a seafloor-dwelling juvenile stage, larvae need to settle out of the plankton, guided by specific environmental cues that lead them to an ideal habitat for their future life on the seafloor. Although the marine annelid Platynereis dumerilii has been cultured in research laboratories since the 1950s and has a free-swimming larval stage, specific environmental cues that induce settlement in this nereid worm are yet to be identified. Here, we demonstrate that microalgal biofilm is a key settlement cue for P. dumerilii larvae, inducing earlier onset of settlement and enhancing subsequent juvenile growth as a primary food source. We tested the settlement response of P. dumerilii to 40 different strains of microalgae, predominantly diatom species, finding that P. dumerilii have species-specific preferences in their choice of settlement substrate. The most effective diatom species for inducing P. dumerilii larval settlement were benthic pennate species including Grammatophora marina, Achnanthes brevipes and Nitzschia ovalis. The identification of specific environmental cues for P. dumerilii settlement enables a link between its ecology and the sensory and nervous system signalling that regulates larval behaviour and development. Incorporation of diatoms into P. dumerilii culture practices will improve the husbandry of this marine invertebrate model.
DOI:doi:10.1098/rsos.240274
URL:Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.

kostenfrei: Volltext: https://doi.org/10.1098/rsos.240274
 kostenfrei: Volltext: https://royalsocietypublishing.org/doi/10.1098/rsos.240274
 DOI: https://doi.org/10.1098/rsos.240274
Datenträger:Online-Ressource
Sprache:eng
Sach-SW:biofilm
 diatoms
 larval settlement
 microalgae
 Platynereis
K10plus-PPN:1917607377
Verknüpfungen:→ Zeitschrift

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