COMPOSITION AND ULTRASTRUCTURE OF THE BYSSUS OF MYTILUS-EDULIS
COMPOSITION AND ULTRASTRUCTURE OF THE BYSSUS OF MYTILUS-EDULIS
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DOI：
10.1002/jmor.1051890305
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发表时间：
1986-09-01
影响因子：
1.5
通讯作者：
WAITE, JH
中科院分区：
文献类型：
--
作者：
BENEDICT, CV;WAITE, JH
紫贻贝(Mytilus edulis L.)骨骼的三个区域在宏观和微观水平上具有不同的结构组织，在氨基酸组成上也不同。从脚底部的茎发出的线分为两个区域。近端的弹性区域有一个卷曲的、染色浓密的皮质，包裹着螺旋纤维的内部基质，其氨基酸组成反映了蛋白质的异质性。更远端的硬质区域有一个笔直的管状皮质，围绕着线状排列的纤维束的内部基质，其组成类似于纯胶原蛋白。斑块或盘状部分介导与各种底物的附着，其特征是由胶原样纤维组成的表面基质，类似于线状区域的那些，并锚定在内部海绵基质上。斑块中存在胶原成分、富含儿茶酚的蛋白质和至少一种其他辅助蛋白质的成分证据。
Three regions of the bysssus of the marine mussel Mytilus edulis L. are distinct in structural organization at the macroscopic and microscopic level and in amino acid composition. The threads that emanate from the stem at the base of the foot are divided into two regions. The proximal, elastic region has a crimped, densely staining cortex enclosing an interior matrix of spiral fibers, and its amino acid composition reflects protein heterogeneity. The more distal, rigid region has a straight, tubular cortex surrounding an inner matrix of linearly arranged bundles of fibrils and has a composition approximating pure collagen. The plaque, or disc-shaped portion, which mediates attachment to various substrates, is distinguished by a surface matrix of collagen-like fibers similar to those of the thread region and anchored on an inner spongy matrix. Compositional evidence exists for a collagenous component, a catechol-rich protein, and at least one other accessory protein in the plaque.