Nutritional and Related Biological Studies on the Free-Living Soil Amoeba, Hartmannella rhysodes
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چکیده
منابع مشابه
Growth and bacteriolytic activity of a soil amoeba, Hartmannella glebae.
A soil amoeba, Hartmannella glebae, could grow on a variety of gram-positive and gram-negative bacteria, although the rate of growth was faster in the presence of gram-negative bacteria. The amoeba, however, could not use yeasts, molds, or a green alga as a nutritional source. The extract prepared from amoebae grown in the presence of Aerobacter aerogenes and Alcaligenes faecalis could lyse int...
متن کاملPathogenic Free-living Amoeba
These are Acanthamoeba spp., Balamuthia mandrillaris (the only known species of Balamuthia), Naegleria fowleri (sometimes considered not to be an amoeba at all, but more closely related to Leishmania and Trypanosoma) and Sappinia pedata. They are distinct from the more famous Entamoeba histolytica (an obligate anaerobic parasite which can cause amoebiasis, amoebic dysentery and amoebic liver ab...
متن کاملsoil contamination with free-living amoeba in north of iran
conclusions the results of the present study revealed that soil resources of these areas were contaminated with opportunistic amoebas such as acanthamoeba and hartmannella spp. and this may lead to severe diseases in high-risk people, such as immunocompromised patients. background free-living amoebas are very abundant in nature, especially in water and soil. some species of amoebas cause seriou...
متن کاملQuantitative detection of the free-living amoeba Hartmannella vermiformis in surface water by using real-time PCR.
A real-time PCR-based method targeting the 18S rRNA gene was developed for the quantitative detection of Hartmannella vermiformis, a free-living amoeba which is a potential host for Legionella pneumophila in warm water systems and cooling towers. The detection specificity was validated using genomic DNA of the closely related amoeba Hartmannella abertawensis as a negative control and sequence a...
متن کاملEffects of Grazing by the Free-Living Soil Amoebae Acanthamoeba castellanii, Acanthamoeba polyphaga, and Hartmannella vermiformis on Various Bacteria.
Cultures of 10 different bacteria were used to serve as food sources for axenically grown Acanthamoeba castellanii, Acanthamoeba polyphaga, and Hartmannella vermiformis. The nonpigmented enterobacteriaceae Escherichia coli K-12 and Klebsiella aerogenes appeared to be excellent feed to all three amoebae. Hardly any growth or ammonium production was observed in tests with Chromatium vinosum and S...
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ژورنال
عنوان ژورنال: Journal of General Microbiology
سال: 1959
ISSN: 0022-1287
DOI: 10.1099/00221287-21-1-80