An investigation into the cause of the spontaneous aggregation of flagellates and into the reactions of flagellates to dissolved oxygen. Part I.
An investigation into the cause of the spontaneous aggregation of flagellates and into the reactions of flagellates to dissolved oxygen. Part I.
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DOI：
10.1085/jgp.3.4.483
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发表时间：
1921-03-01
影响因子：
3.8
通讯作者：
Fox, HM
中科院分区：
文献类型：
--
作者：
Fox, HM
众所周知，许多鞭毛虫和纤毛虫原生动物形成自发聚集。也就是说，当一滴含有生物体的水被固定在载玻片上用于在显微镜下检查时，经常看到鞭毛虫或纤毛虫聚集成团块或团块。这种集合的中心可能是水中存在的某种固体，或者可能没有这种可见的焦点。这是两种情况中的第二种，在这里称为自发聚集，本研究的目的是找出这种现象的原因。原因的发现又引出了一个更普遍的问题，即有机体与不同数量的溶解氧之间的关系。在整个研究过程中，使用了相同种类的鞭毛虫，即沟身鞭毛虫（Bodo sulcatus）。它最初由Mereschkowsky描述。1在本研究中，鞭毛虫是通过从普利茅斯实验室后面的花园中采集草并将其浸泡在自来水中获得的。最好的材料是从6天龄的培养物中获得的。鞭毛虫在没有与其他生物过多混合的情况下最为丰富。在培养时间超过6天的培养物中，存在太多的细菌，再晚些时候，存在太多的纤毛虫。
It is well known that many flagellate and ciliate Protista form spontaneous aggregations. That is, when a drop of water containing the organisms is mounted on a slide for examination under the microscope the flagellates or ciliates are frequently seen to collect into clumps or masses. The center of such a collection may be a piece of some solid present in the water, or there may be no such visible focus. It is the second of the two cases that is here termed spontaneous aggregation, and the present investigation was undertaken with the object of finding out the cause of this phenomenon. The discovery of the cause then led on to the more general question of the relation of the organisms ta varying amounts of dissolved oxygen. Throughout the investigation the same species of flagellate was used; namely, Bodo sulcatus. It was originally described by Mereschkowsky. 1 For the present investigation the flagellate was obtained by taking grass from the garden behind the laboratory at Plymouth and steeping it in tap water. The best material was obtained from 6 day old cultures. The flagellates were then most abundant without being too much mixed with other organisms. In cultures older than 6 days there were too many bacteria present and, still later on, too many ciliates.