Bers A V, Prendergast G S, Zürn C M, Hansson L, Head R M, Thomason J C
Leibniz Institute of Marine Sciences, Kiel University, 24105 Kiel, Germany.
Biol Lett. 2006 Mar 22;2(1):88-91. doi: 10.1098/rsbl.2005.0389.
Marine organisms have evolved defence mechanisms to prevent epibiosis. This study investigated the anti-settlement properties of natural periostracal microtopographies of two mytilid species, Mytilus edulis (from North, Baltic and White Seas) and Perna perna (from the SW Atlantic). Resin replicas of shells were exposed to cyprids of the barnacle Semibalanus balanoides. Replicas with intact isotropic microtopographies and smooth controls were much less fouled than roughened anisotropic surfaces. This indicates that in both M. edulis and P. perna the periostracum possesses a generic anti-settlement property, at least against S. balanoides cyprids, which is not regionally adapted. Such a potential globally effective anti-settlement mechanism possibly contributes to the invasive success of Mytilidae.
海洋生物已经进化出防御机制来防止体表共生。本研究调查了两种贻贝（紫贻贝，来自北海、波罗的海和白海；以及翡翠贻贝，来自西南大西洋）天然角质层微观形貌的抗附着特性。贝壳的树脂复制品暴露于藤壶Semibalanus balanoides的无节幼体。具有完整各向同性微观形貌的复制品和光滑对照相比粗糙的各向异性表面，被污染的程度要低得多。这表明，紫贻贝和翡翠贻贝的角质层都具有一般的抗附着特性，至少对Semibalanus balanoides无节幼体有效，且不存在区域适应性差异。这种潜在的全球有效抗附着机制可能有助于贻贝科的入侵成功。
