克氏肉孢子虫包囊在暴露于不同温度和相对湿度后的活力。

Viability of the sporocysts of Sarcocystis cruzi after exposure to different temperatures and relative humidities.

作者信息

Savini G, Robertson I D, Dunsmore J D

机构信息

Istituto Zooprofilattico Sperimentale dell' Abruzzo e Molise, Teramo, Italy.

出版信息

Vet Parasitol. 1996 Dec 31;67(3-4):153-60. doi: 10.1016/s0304-4017(96)01046-1.

DOI:10.1016/s0304-4017(96)01046-1

PMID:9017863

Abstract

The effect of temperature and relative humidity (RH) on the survival of sporocysts of S. cruzi were investigated in vitro. Under all experimental conditions (temperature of 4 degrees C, 37 degrees C, or room temperature; RH of 18%, 75%, or 100%) some sporozoites retained their viability to excyst for at least 90 days. The best conditions for survival were 4 degrees C at 100% RH (more than 240 days) and 37 degrees C at 18% RH (more than 180 days). Sporocysts maintained at room temperature at all humidities had the lowest level of survival. It is concluded that sporocysts of S. cruzi are able to survive in most environments for several months and that the fluctuation of the daily ambient temperature is likely to influence the viability of the sporocysts.

摘要

在体外研究了温度和相对湿度（RH）对克氏锥虫孢子囊存活的影响。在所有实验条件下（4℃、37℃或室温；18%、75%或100%的相对湿度），一些子孢子保持其活力以脱囊至少90天。最佳存活条件是4℃、100%相对湿度（超过240天）和37℃、18%相对湿度（超过180天）。在所有湿度条件下于室温保存的孢子囊存活率最低。得出的结论是，克氏锥虫的孢子囊能够在大多数环境中存活数月，并且每日环境温度的波动可能会影响孢子囊的活力。