Respiration in the Cysts and Trophozoites of Giardia muris
نویسندگان
چکیده
منابع مشابه
Inactivation of Giardia muris cysts by free chlorine.
The chlorine resistance of cysts of the flagellate protozoan Giardia muris was examined. This organism, which is pathogenic to mice, is being considered as a model for the inactivation of the human pathogen Giardia lamblia. Excystation was used as the criterion for cyst viability. Experiments were performed at pH 5, 7, and 9 at 25 degrees C and pH 7 at 5 degrees C. Survival curves were "steplad...
متن کاملLow pressure ultraviolet studies for inactivation of Giardia muris cysts.
AIMS The research was initiated to confirm earlier ultraviolet (u.v.) light inactivation studies performed on Giardia cysts using excystation as the viability indicator. Following this, a comparison of in vitro excystation and animal infectivity was performed for assessing cyst viability after exposure to low-pressure u.v. irradiation. METHODS AND RESULTS Cysts of Giardia muris were inactivat...
متن کاملChanges in intestinal fluid and mucosal immune responses to cholera toxin in Giardia muris infection and binding of cholera toxin to Giardia muris trophozoites.
The effect of Giardia muris infection on the diarrheal response and gut mucosal antibody response to cholera toxin was examined in mice. The results obtained showed that the fluid accumulation in intestinal loops exposed to cholera toxin was increased in mice infected with a low number (5 X 10(4) ) of G. muris cysts compared with the response in noninfected mice. This effect was associated with...
متن کاملThe application of on-chip optofluidic microscopy for imaging Giardia lamblia trophozoites and cysts.
The optofluidic microscope (OFM) is a lensless, low-cost and highly compact on-chip device that can enable high-resolution microscopy imaging. The OFM performs imaging by flowing/scanning the target objects across a slanted hole array; by measuring the time-varying light transmission changes through the holes, we can then render images of the target objects at a resolution that is comparable to...
متن کاملBatch solar disinfection inactivates oocysts of Cryptosporidium parvum and cysts of Giardia muris in drinking water.
AIM To determine whether batch solar disinfection (SODIS) can be used to inactivate oocysts of Cryptosporidium parvum and cysts of Giardia muris in experimentally contaminated water. METHODS AND RESULTS Suspensions of oocysts and cysts were exposed to simulated global solar irradiation of 830 W m(-2) for different exposure times at a constant temperature of 40 degrees C. Infectivity tests wer...
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ژورنال
عنوان ژورنال: Microbiology
سال: 1989
ISSN: 1350-0872,1465-2080
DOI: 10.1099/00221287-135-1-145