REACTIONS OF STENTOR-COERULEUS TO CERTAIN SUBSTANCES ADDED TO THE MEDIUM
REACTIONS OF STENTOR-COERULEUS TO CERTAIN SUBSTANCES ADDED TO THE MEDIUM
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DOI：
10.1016/0014-4827(57)90011-3
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发表时间：
1957-01-01
影响因子：
3.7
通讯作者：
TARTAR, V
中科院分区：
文献类型：
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作者：
TARTAR, V
这些纤毛虫短暂暴露于致死浓度的各种盐，糖，尿素，蛋白质，生物碱和酒精。除乙醇产生选择性脱落的口腔膜，一般随后完全恢复与再生这些细胞器。口膜原基脱落后，较长时间的曝光，其敏感性直接与发展程度的不同。有些化合物还引起色素脱落，在某些情况下，显然是细胞外层脱落。碘化钠和KI被发现给完全的，可逆的麻醉的肌丝;和特殊的影响化学品的纤毛的活动被指出。在亚致死浓度的海水和氯化锂有一个变量的抑制再生的摄食细胞器，范围从仅仅延迟的外观的口腔原基，通过astomatous分化的peristome，完全阻断原基的形成。两种溶液都可能导致分裂细胞分离失败。氯化锂也产生了显着的结构增加的横向尺寸的细胞，而不是由于肿胀。
These ciliates were briefly exposed to lethal concentrations of various salts, sugars, urea, a protein, an alkaloid, and an alcohol. All except ethanol produced selective shedding of the oral membranelles, generally followed by complete recovery with regeneration of these organelles. The primordium of the oral membranelles was shed after a longer exposure, its susceptibility varying directly with the degree of development attained. Some compounds also caused pigment sloughing and in some cases apparently a casting off of an outer layer of the cell. NaI and KI were found to give complete, reversible anesthesia of the myonemes; and special effects of chemicals on activity of the cilia were noted. In sublethal concentrations of sea water and of LiCl there was a variable inhibition of regeneration of feeding organelles, ranging from mere delay in the appearance of the oral primordium, through astomatous differentiation of the peristome, to complete blockage of anlagen formation. Both solutions can cause failure in separation of dividing cells. LiCl also produced a marked structural increase in the transverse dimension of the cell not due to swelling.