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Involvement of sulfated biopolymers in adhesive secretions produced by marine invertebrates
Hennebert, E.; Gregorowicz, E.; Flammang, P. (2018). Involvement of sulfated biopolymers in adhesive secretions produced by marine invertebrates. Biology Open 7(11): bio037358. https://dx.doi.org/10.1242/bio.037358
In: Biology Open. The Company of Biologists: Cambridge. ISSN 2046-6390; e-ISSN 2046-6390
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| Trefwoorden |
Holothuroidea [WoRMS]
Marien/Kust |
| Author keywords |
Sulfate; Marine adhesion; Mussel; Tubeworm; Sea star; Limpet; Seacucumber |
| Auteurs | | Top |
- Hennebert, E.
- Gregorowicz, E.
- Flammang, P.
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| Abstract |
Many marine invertebrates use adhesive secretions to attach to underwater surfaces and functional groups borne by their adhesive proteins and carbohydrates, such as catechols and phosphates, play a key role in adhesion. The occurrence of sulfates as recurrent moieties in marine bioadhesives suggests that they could also be involved. However, in most cases, their presence in the adhesive material remains speculative. We investigated the presence of sulfated biopolymers in five marine invertebrates representative of the four types of adhesion encountered in the sea: mussels and tubeworms for permanent adhesion, limpets for transitory adhesion, sea stars for temporary adhesion and sea cucumbers for instantaneous adhesion. The dry adhesive material of mussels, sea stars and sea cucumbers contained about 1% of sulfate. Using antisulfotyrosine antibodies and Alcian Blue staining, sulfated proteins and sulfated proteoglycans and/or polysaccharides were identified in the secretory cells and adhesive secretions of all species except the tubeworm. Sulfated proteoglycans appear to play a role only in the non-permanent adhesion of sea stars and limpets in which they could mediate cohesion within the adhesive material. In mussels and sea cucumbers, sulfated biopolymers would rather have an anti-adhesive function, precluding self-adhesion. |
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