The Effect of pH on Food-Vacuole Formation in Paramecium
The Effect of pH on Food-Vacuole Formation in Paramecium
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pH 对草履虫食物泡形成的影响
DOI：
10.1086/physzool.15.4.30151659
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发表时间：
1942
期刊：
影响因子：
--
通讯作者：
IN Paramecium
中科院分区：
文献类型：
--
作者：
IN Paramecium
pH值对纤毛虫繁殖的影响一直是许多研究的主题，但pH值对食物泡形成的影响只研究过Colpidium（米尔斯，I93 I）。Metalnikow（1912）对酸碱性对草履虫食物泡形成频率的影响进行了一些早期观察，但当时测量氢离子浓度的方法还很不完善。Jacobs（1912）、Losina-Losinsky（1931）、Bragg（1936）以及King和Beams（1941）指出，可以用草履虫摄食食物泡的频率作为生物体生理状态的指标。本研究的目的是研究H-离子浓度对P.奥雷利亚、P. caudatum和P. multicronucleatum摄食食物泡频率的影响。这是可能的，这样的研究结果可能是有用的解释原生动物在干草输液的顺序。所获得的数据可用于比较的pH值范围和最大值的摄入与其他研究人员获得的增长，这些物种。也可以比较三种密切相关的物种在相同条件下的反应。
THE THE effect of pH on the reproduction of ciliates has been the subject of many investigations, but the effect of pH on food-vacuole formation has been investigated only for Colpidium (Mills, I93I). Metalnikow (1912) made some early observations on the effects of acidity and alkalinity on the frequency of food-vacuole formation in Paramecium sp., but at that time the methods of measuring hydrogen-ion concentration were quite inadequate. The feasibility of using the frequency of ingestion of food vacuoles of Paramecium as an index of the physiological state of the organism was pointed out by Jacobs (1912), Losina-Losinsky (1931), Bragg (1936), and King and Beams (1941). The purpose of the present investigation was to study the effect of H-ion concentration on the frequency of ingestion of food vacuoles in P. aurelia, P. caudatum, and P. multimicronucleatum. It is possible that the results of such a study might be useful in interpreting the sequence of Protozoa in hay infusion. The data obtained can be used for comparing the pH ranges and maxima for ingestion with those obtained by other investigators for the growth of each of these species. It is also possible to compare the reactions of three closely related species to identical conditions.