Private Laboratory, Jacob-Burckhardt-Str. 18, D-78464 Konstanz, Germany.
Eur J Protistol. 2010 May;46(2):133-42. doi: 10.1016/j.ejop.2009.12.004. Epub 2010 Feb 20.
The survival of ciliate resting cysts, in the presence and absence of soil, was studied under two environmental stresses: desiccation and freezing. Laboratory strains of the common species Colpoda inflata and the rare species Meseres corlissi were used in these experiments, which yielded the following results: 1) Freezing of cysts in soil with a residual moisture level exceeding approximately 30% was destructive for both species. 2) Survival of Meseres corlissi cysts depended largely on the presence of soil. 3) In the absence of soil, Colpoda inflata cysts had greater tolerance to desiccation and freezing than Meseres corlissi cysts. Possible consequences for the distribution of natural populations are discussed.
在两种环境胁迫下（干燥和冷冻），研究了纤毛虫休眠包囊在有土和无土条件下的存活情况。本实验使用了常见种内卷目虫（Colpoda inflata）和稀有种小眼目虫（Meseres corlissi）的实验室品系，得到以下结果：1）当土壤残余湿度超过约 30%时，包囊的冷冻对两种生物都是致命的。2）小眼目虫包囊的存活在很大程度上依赖于土壤的存在。3）在无土条件下，内卷目虫包囊比小眼目虫包囊对干燥和冷冻有更强的耐受性。讨论了这些结果对自然种群分布的可能影响。
