GROWTH STUDIES ON CILIATES: IV. THE INFLUENCE OF FOOD ON THE STRUCTURE AND GROWTH OF GLAUCOMA VORAX SP. NOV.
GROWTH STUDIES ON CILIATES: IV. THE INFLUENCE OF FOOD ON THE STRUCTURE AND GROWTH OF GLAUCOMA VORAX SP. NOV.
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纤毛虫的生长研究：IV。
DOI：
10.2307/1537795
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发表时间：
1940
期刊：
影响因子：
--
通讯作者：
C. Claff
中科院分区：
文献类型：
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作者：
G. Kidder;D. Lilly;C. Claff
在许多不同的原生动物中发现了可能与生理条件有关的形态变异。众所周知，营养充足的原生动物通常是按比例大的，而饥饿的标本可能相当小。不同类型的怪物可能源于特定的文化条件，如特定的细菌饮食（Kidder和Stuart， 1939），或者来自人口下降期间不太为人所知的影响。在次毛纤毛虫中，当它们变成同类相食时，大小就会发生显著的变化（Geise和Alden， 1938），但这种大小的增加很少伴随着剧烈的形态变化。必须认识到在食物和其他环境因素的不同条件下形态变异的限度，以便确定任何物种的分类有效性。下面的报告是基于一种迄今为止未被描述的青光眼物种（这里称为G. vorax sp. 11 .）的研究，所进行的实验旨在了解这种有趣的纤毛虫的食物需求、摄食机制以及影响其深刻结构变化的因素。
Morphological variations which may be correlated with physiological condition have been noted in many different protozoa. It is well recognized that well fed protozoa are usually proportionately large while starved specimens may be quite small. Monsters of various types may result from certain cultural conditions such as certain bacterial diets (Kidder and Stuart, 1939) or from less well known influences during population decline. Among the hypotrichous ciliates one sees a marked change in size taking place when these forms become cannibalistic (Geise and Alden, 1938), but this increase in size is seldom accompanied by drastic morphological variations. The limits of morphological variation under varied conditions of food and other environmental factors must be recognized in order that the taxonomic validity of any species may be established. The following report is based on the study of a hitherto undescribed species of Glaucoma (herein designated as G. vorax sp. nov.) and the experiments carried out were designed to gain some understanding of the food requirements, the mechanism of feeding and the factors influencing the profound structural changes of this interesting ciliate.