First evidence for temporary and permanent adhesive systems in the stalked barnacle cyprid, Octolasmis angulata

Yap, F.C. and Wong, W.L. and Maule, A.G. and Brennan, G.P. and Chong, V.C. and Lim, S.L.H. (2017) First evidence for temporary and permanent adhesive systems in the stalked barnacle cyprid, Octolasmis angulata. Scientific Reports, 7 (1). p. 44980. ISSN 2045-2322, DOI

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Although there have been extensive studies on the larval adhesion of acorn barnacles over the past few decades, little is known about stalked barnacles. For the first time, we describe the larval adhesive systems in the stalked barnacle, Octolasmis angulata and the findings differ from previous reports of the temporary (antennulary) and cement glands in thoracican barnacles. We have found that the temporary adhesives of cyprid are produced by the clustered temporary adhesive glands located within the mantle, instead of the specialised hypodermal glands in the second antennular segment as reported in the acorn barnacles. The temporary adhesive secretory vesicles (TASV) are released from the gland cells into the antennule via the neck extensions of the glands, and surrounded with microtubules in the attachment disc. Cement glands undergo a morphological transition as the cyprid grows. Synthesis of the permanent adhesives only occurs during the early cyprid stage, and is terminated once the cement glands reach maximum size. Evidence of the epithelial invaginations on the cement glands supports the involvement of exocytosis in the secretion of the permanent adhesives. This study provides new insight into the larval adhesives system of thoracican barnacles.

Item Type: Article
Funders: Collaborative grant (University of Malaya and Queen’s University Belfast, UMQUB1A-2011), University of Malaya research grant (RP019B-16SUS)
Uncontrolled Keywords: Adhesive systems; Stalked barnacle cyprid; Octolasmis angulata
Subjects: Q Science > Q Science (General)
Q Science > QH Natural history
Divisions: Faculty of Science
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 10 Aug 2018 07:28
Last Modified: 10 Aug 2018 07:28

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