Role of epibiotic diatoms isolated from the barnacle shell in the cyprid metamorphosis of Balanus amphitrite

Sahoo, Gobardhan; Khandeparker, Lidita

doi:10.1007/s10750-018-3668-y

Cited by 6 publications

(1 citation statement)

References 67 publications

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“…The presence of these compounds in microbial EPS has been reported previously 54–57 . The peak around 3407–3414 cm −1 and 2926–2929 cm −1 correspond to hydroxyl and CH 2 groups respectively 58,59 . The peak around 1421–1424 cm −1 indicated the presence of a –COO − group 40 .…”

Section: Discussionmentioning

confidence: 99%

Characterization and assessment of barnacle larval settlement-inducing activity of extracellular polymeric substances isolated from marine biofilm bacteria

Siddik

Satheesh

2019

Sci Rep

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Extracellular polymeric substances (EPSs) are the hydrated gelatinous matrix produced by microorganisms for attachment in a biofilm environment. In this study, the compositional variation between EPSs of three marine biofilm bacteria (Pseudoalteromonas shioyasakiensis, Vibrio harveyi and Planomicrobium sp.) were analysed by GC-MS, 1H NMR, FT-IR and XRD and SEM. The ecological significance of exopolymers was assessed in vivo using marine model organism barnacle larvae for their settlement-inducing activity. Chemical analysis revealed the presence of glycan fucosylated oligosaccharides, tetraose, trisaccharides, iso-B-Pentasaccharides, sialyllactose, oligomannose, galacto-N-biose, difucosyl-para-lacto-N-neohexaose, 3′-sialyl N-acetyllactosamine and isoglobotriaose-β-N(Acetyl)-Propargyl in all extracted EPSs. Bioassay results indicated that treatment of the barnacle larvae with EPSs from three bacterial strains enhanced settlement on substrates. In conclusion, this study highlighted the role of water-soluble EPSs in the invertebrate larval settlement on artificial materials.

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