Mechanisms of removal of injected microorganisms from the American oyster, Crassostrea virginica (Gmelin).
Mechanisms of removal of injected microorganisms from the American oyster, Crassostrea virginica (Gmelin).
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从美洲牡蛎、Crassostrea virginica (Gmelin) 中去除注入微生物的机制。
DOI：
10.2307/1538928
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发表时间：
1960
期刊：
影响因子：
--
通讯作者：
M. R. Tripp
中科院分区：
文献类型：
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作者：
M. R. Tripp
1. 对注入牡蛎（Crassostrea virginica）的细菌孢子、营养性细菌和酵母细胞的命运进行了组织学和活力研究。组织切片显示，血管中的酵母细胞被白细胞吞噬，白细胞迁移到周围组织，然后通过上皮层迁移到外部。残留在组织中的一小部分酵母细胞在细胞内被消化。注射活菌的牡蛎的组织学检查显示，在大量宿主吞噬细胞迁移到外部之前，微生物在细胞内和细胞外都被迅速破坏。活力实验表明，当注射几种不形成孢子的细菌时，很少有这些生物在48小时后可以恢复。然而，这些细菌的一小部分在牡蛎组织中持续了几天。细菌孢子以极低的速度从牡蛎组织中去除。
1. The fate of injected bacterial spores, vegetative bacteria and yeast cells injected into the oyster, Crassostrea virginica, was followed histologically and by viability studies.2. Tissue sections showed that yeast cells were phagocytized in blood vessels by leukocytes which migrate into surrounding tissues and later through epithelial layers to the exterior. A small proportion of yeast cells remaining in the tissues are digested intracellularly.3. Histologic examination of oysters injected with living bacteria revealed that the microorganisms were rapidly destroyed both intracellularly and extracellularly before significant numbers of host phagocytes could migrate to the exterior.4. Viability experiments demonstrated that when several species of non-spore-forming bacteria were injected, very few of these organisms could be recovered 48 hours later. However, a small proportion of these bacteria persisted in oyster tissues for several days.5. Bacterial spores were removed from oyster tissues at a much sl...