The natural sequence of events in larval settlement and metamorphosis of Hydroides elegans (Polychaeta; Serpulidae).

ABSTRACT: The broadly distributed serpulid worm Hydroides elegans has become a model organism for studies of marine biofouling, development and the processes of larval settlement and metamorphosis induced by surface microbial films. Contrasting descriptions of the initial events of these recruitment processes, whether settlement is induced by (1) natural multi-species biofilms, (2) biofilms composed of single bacterial species known to induce settlement, or (3) a bacterial extract stimulated the research described here. We found that settlement induced by natural biofilms or biofilms formed by the bacterium Pseudoalteromonas luteoviolacea is invariably initiated by attachment and secretion of an adherent and larva-enveloping primary tube, followed by loss of motile cilia and ciliated cells and morph

SUBMITTER: Hadfield MG 

PROVIDER: S-EPMC8118285 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature