绿海胆
体腔
生物
新斯科舍省
解剖
海胆
管腔(解剖学)
组织病理学
渗透(HVAC)
病理
医学
生态学
细胞生物学
历史
物理
考古
热力学
作者
Gwyneth M. Jones,Andrew Hebda,Robert Eric Scheibling,Robert J. Miller
标识
DOI:10.1016/0022-2011(85)90102-8
摘要
The disease causing mass mortalities of Strongylocentrotus droebachiensis off Nova Scotia, Canada, from 1980 to 1983 is described. Diseased urchins were characterized by loss of preipheral muscle function in tube feet, spines, and mouth. Signs occurred primarily in the body wall and associated tissues (water vascular system, nerves, spine bases) and coelomic fluid. These symptoms were diffuse and included a general infiltration of tissues with amoebocytes. The coelomic fluid often contained reduced numbers of red and white spherule cells, and clotting was incomplete. Progressive breakdown and fragmentation of muscle cells in tube feet and spine bases resulted in destruction of coherent muscle layers and their replacement by numerous spindle-shaped fibrillar muscle remnants. Coelomic lining cells in the tube feet sloughed off into the lumen, but remained in clumps and phagocytosed muscle remnants.
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