草履虫的接合現象,在动物学的教学中是观察单細胞动物进行接合生殖重要的实驗材料。同时,草履虫的接合过程又常被采用为細胞学与細胞化学的研究材料。因此,这种材料簡便的培养方法是很需要的。本人在培养草履虫的接合实驗中获得点滴經驗,作以介紹。我們通常采用自来水,在缺乏营养的条件下进行培养,但往往得不到理想的結果。在本人实驗的經驗中认为,其主要原因是草履虫的密度不够大,如果密度在每毫升能够达到1000个以上,在一般室温(20℃—30℃),避开直射光线(不 Paramecium junction phenomenon in zoology teaching is to observe single-celled animal reproductive reproductive important experimental material. At the same time, paramecium conjugation is often used as a cytological and cytochemical material. Therefore, this material is a simple method of culture is very necessary. I am in the training of Paramecium joint experiment to get bit of experience, for the introduction. We usually use tap water to cultivate in the absence of nutrients, but often we do not get the desired result. My own experience in the experiment that the main reason is the density of paramecium is not big enough, if the density per ml can reach more than 1,000 at room temperature (20 ℃ -30 ℃), avoid direct sunlight (not