Attachment of the biofouling bryozoan Bugula neritina larvae affected by inorganic and organic chemical cues

TY - JOUR

T1 - Attachment of the biofouling bryozoan Bugula neritina larvae affected by inorganic and organic chemical cues

AU - Yu, Xiujuan

AU - Yan, Yan

AU - Gu, Ji Dong

N1 - Funding Information: The authors thank the anonymous reviewers for comments on an early version of this manuscript. This research was supported by grants from Natural Science Foundation of Guangdong Province, China (Project no. 04001304).

PY - 2007

Y1 - 2007

N2 - The bryozoan Bugula neritina L. is an important fouling organism worldwide and has been the focus of great interest for large scale culturing because of the powerful anticancer chemicals extracted from the animals. In this study, the effects of four inorganic ions and five bioactive compounds on larval attachment of the bryozoan were investigated with an aim of identifying artificial cues for prevention and mariculture of this species. K+ at 10-70 mM and NH4+ >10 mM significantly induced larval attachment on the bottom surfaces of the culture dishes. Mg2+ at 1-50 mM significantly inhibited larval attachment, while Ca2+ showed toxicity to the larvae at 30 mM. γ-Aminobutyric acid induced larval attachment to the bottom surfaces of the aquarium only at 10-2 M. Acetylcholine at 10-2-10-3 M, l-3-(3,4-dihydroxyphenyl)-l-alanine at 10-3-10-5 M and dopamine at 10-3-10-4 M significantly induced larval settlement but inhibited larval attachment, probably due to the restricted mobility and less active probing of the substratum surfaces during larval exploration. Serotonin at concentrations between 10-3 and 10-5 M significantly inhibited larval settlement and attachment by forcing the larvae to swim in the water. Our observations suggest that serotonin and its derivatives are potential candidates for the development of non-toxic antifouling substances.

AB - The bryozoan Bugula neritina L. is an important fouling organism worldwide and has been the focus of great interest for large scale culturing because of the powerful anticancer chemicals extracted from the animals. In this study, the effects of four inorganic ions and five bioactive compounds on larval attachment of the bryozoan were investigated with an aim of identifying artificial cues for prevention and mariculture of this species. K+ at 10-70 mM and NH4+ >10 mM significantly induced larval attachment on the bottom surfaces of the culture dishes. Mg2+ at 1-50 mM significantly inhibited larval attachment, while Ca2+ showed toxicity to the larvae at 30 mM. γ-Aminobutyric acid induced larval attachment to the bottom surfaces of the aquarium only at 10-2 M. Acetylcholine at 10-2-10-3 M, l-3-(3,4-dihydroxyphenyl)-l-alanine at 10-3-10-5 M and dopamine at 10-3-10-4 M significantly induced larval settlement but inhibited larval attachment, probably due to the restricted mobility and less active probing of the substratum surfaces during larval exploration. Serotonin at concentrations between 10-3 and 10-5 M significantly inhibited larval settlement and attachment by forcing the larvae to swim in the water. Our observations suggest that serotonin and its derivatives are potential candidates for the development of non-toxic antifouling substances.

KW - Attachment

KW - Biofouling

KW - Bryozoan

KW - Bugula neritina

KW - Chemical cues

UR - http://www.scopus.com/inward/record.url?scp=34447630265&partnerID=8YFLogxK

U2 - 10.1016/j.ibiod.2006.12.003

DO - 10.1016/j.ibiod.2006.12.003

M3 - 文章

AN - SCOPUS:34447630265

SN - 0964-8305

VL - 60

SP - 81

EP - 89

JO - International Biodeterioration and Biodegradation

JF - International Biodeterioration and Biodegradation

IS - 2

ER -