RIVERA, F., ORTEGA, A., LÓPEZ-OCHOTERENA, E. & PAZ, M. E. 1979. A quantitative morphological and ecological study of protozoa polluting tap water in Mexico City. Trans. Amer. Micros. Soc., 98: 465469. The stiidy was performed using samples obtained from the tap water of the most populated area of the Federal District in Mexico City. The organisms were concentrated through filtration procedures ...

As part of a study of the natural history of protozoa at a grassland site at Sourhope, in Scotland, the potential for soil samples to support the growth of naked amoebae was assessed using an indirect dilution/culture method. Populations of up to 73,000 per gram dry weight of soil were detected, and a total of 48 putative species were distinguished using light microscopy. A further six putative...

BACKGROUND Free-living amoebae are present worldwide. They can survive in different environment causing human diseases in some instances. Acanthamoeba sp. is known for causing sight-threatening keratitis in humans. Free-living amoeba keratitis is more common in developing countries. Amoebae of family Vahlkampfiidae are rarely reported to cause such affections. A new genus, Allovahlkampfia spela...

background: free-living amoebae (fla) are a group of ubiquitous protozoan, which are distrib­uted in the natural and artificial environment sources. the main aim of the current study was to identify the presence of fla in the recreational hot springs of sarein in ardebil province of iran. methods: seven recreational hot springs were selected in sarein city and 28 water samples (four from each h...

Samples from therapeutic swimming pools and mud basins were cultured for free-living amoebae. Seven strains of pathogenic Naegleria species were isolated. Although some of the strains were as virulent as Naegleria fowleri, the etiological agent of primary amoebic meningoencephalitis, they were identified as Naegleria australiensis with the indirect fluorescent-antibody technique. The virulence ...

Heterolobose amoebae are important members of marine, freshwater, and soil microbial communities, but their diversity remains under-explored. We studied the Vahlkampfiidae to improve our understanding heterolobosean relationships representation in aquatic benthos. Using light electron microscopy, molecular phylogenies based on SSU rRNA ITS loci, we describe fine morphology evolutionary a new Pa...

Acid mine drainage (AMD) microbial communities contain microbial eukaryotes (both fungi and protists) that confer a biofilm structure and impact the abundance of bacteria and archaea and the community composition via grazing and other mechanisms. Since prokaryotes impact iron oxidation rates and thus regulate AMD generation rates, it is important to analyze the fungal and protistan populations....

Knowledge of the diversity and ecological function of the microbial consortia of James River in Virginia, USA, is essential to developing a more complete understanding of the ecology of this model river system. Metagenomic analysis of James River's planktonic microbial community was performed for the first time using an unamplified genomic library and a 16S rDNA amplicon library prepared and se...