Relationships between free living amoebae and Exophiala dermatitidis: a preliminary study. 2009

Estelle Cateau, and Tiphaine Mergey, and Catherine Kauffmann-Lacroix, and Marie-Helene Rodier
Laboratoire de parasitologie et mycologie médicale, CHU La Milétrie, Poitiers, France. estelle.cateau@chu-poitiers.fr

Free living amoebae can play a role as reservoirs for pathogens isolated from hospital water. We have investigated the potential interactions between two protozoa (Acanthamoeba castellanii and Hartmanella vermiformis) that may be recovered from hospital water tips and Exophiala dermatitidis, a black yeast often recovered from water sources. We showed that the presence of trophozoites or supernatants of culture of H. vermiformis increased fungal growth, whereas the same phenomenon was observed only with the supernatant of A. castellanii cultures. These preliminary results highlight the fact that the recovering of free-living amoebae in hospital water taps could lead to the development of fungal nosocomial pathogens.

UI MeSH Term Description Entries
D005093 Exophiala A normally saprophytic mitosporic Chaetothyriales fungal genus. Infections in humans include PHAEOHYPHOMYCOSIS; and PERITONITIS. Exophiala jeanselmei (previously Phialophora jeanselmei) is an etiological agent of MYCETOMA. Cladosporium werneckii,Hortaea werneckii,Phialophora gougerotii,Phialophora jeanselmei,Pullularia jeanselmei,Wangiella,Exophiala jeanselmei
D005618 Fresh Water Water containing no significant amounts of salts, such as water from RIVERS and LAKES. Freshwater,Fresh Waters,Freshwaters,Water, Fresh,Waters, Fresh
D006249 Hartmannella A genus of free-living amoebae found in fresh water. The cysts usually pass harmlessly through the intestinal tract of man and may thus be found in feces. Occasionally, these organisms cause respiratory tract infections or generalized fatal meningoencephalitis. Hartmannellas
D006761 Hospitals Institutions with an organized medical staff which provide medical care to patients. Hospital
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D014881 Water Supply Means or process of supplying water (as for a community) usually including reservoirs, tunnels, and pipelines and often the watershed from which the water is ultimately drawn. (Webster, 3d ed) Supplies, Water,Supply, Water,Water Supplies
D015169 Colony Count, Microbial Enumeration by direct count of viable, isolated bacterial, archaeal, or fungal CELLS or SPORES capable of growth on solid CULTURE MEDIA. The method is used routinely by environmental microbiologists for quantifying organisms in AIR; FOOD; and WATER; by clinicians for measuring patients' microbial load; and in antimicrobial drug testing. Agar Dilution Count,Colony-Forming Units Assay, Microbial,Fungal Count,Pour Plate Count,Spore Count,Spread Plate Count,Streak Plate Count,Colony Forming Units Assay, Microbial,Colony Forming Units Assays, Microbial,Agar Dilution Counts,Colony Counts, Microbial,Count, Agar Dilution,Count, Fungal,Count, Microbial Colony,Count, Pour Plate,Count, Spore,Count, Spread Plate,Count, Streak Plate,Counts, Agar Dilution,Counts, Fungal,Counts, Microbial Colony,Counts, Pour Plate,Counts, Spore,Counts, Spread Plate,Counts, Streak Plate,Dilution Count, Agar,Dilution Counts, Agar,Fungal Counts,Microbial Colony Count,Microbial Colony Counts,Pour Plate Counts,Spore Counts,Spread Plate Counts,Streak Plate Counts
D017753 Ecosystem A functional system which includes the organisms of a natural community together with their environment. (McGraw Hill Dictionary of Scientific and Technical Terms, 4th ed) Ecosystems,Biome,Ecologic System,Ecologic Systems,Ecological System,Habitat,Niche, Ecological,System, Ecological,Systems, Ecological,Biomes,Ecological Niche,Ecological Systems,Habitats,System, Ecologic,Systems, Ecologic
D048248 Acanthamoeba castellanii A species of free-living soil amoebae in the family Acanthamoebidae. It can cause ENCEPHALITIS and KERATITIS in humans. Acanthamoeba castellanius,castellanius, Acanthamoeba

Related Publications

Estelle Cateau, and Tiphaine Mergey, and Catherine Kauffmann-Lacroix, and Marie-Helene Rodier
September 2021, World journal of clinical cases,
Estelle Cateau, and Tiphaine Mergey, and Catherine Kauffmann-Lacroix, and Marie-Helene Rodier
January 2023, Parasite (Paris, France),
Estelle Cateau, and Tiphaine Mergey, and Catherine Kauffmann-Lacroix, and Marie-Helene Rodier
May 2024, Environmental microbiology,
Estelle Cateau, and Tiphaine Mergey, and Catherine Kauffmann-Lacroix, and Marie-Helene Rodier
April 2018, Antimicrobial agents and chemotherapy,
Estelle Cateau, and Tiphaine Mergey, and Catherine Kauffmann-Lacroix, and Marie-Helene Rodier
September 2020, American journal of ophthalmology case reports,
Estelle Cateau, and Tiphaine Mergey, and Catherine Kauffmann-Lacroix, and Marie-Helene Rodier
March 2013, Mycoses,
Estelle Cateau, and Tiphaine Mergey, and Catherine Kauffmann-Lacroix, and Marie-Helene Rodier
May 1990, Mycopathologia,
Estelle Cateau, and Tiphaine Mergey, and Catherine Kauffmann-Lacroix, and Marie-Helene Rodier
December 1993, Journal of the Egyptian Society of Parasitology,
Estelle Cateau, and Tiphaine Mergey, and Catherine Kauffmann-Lacroix, and Marie-Helene Rodier
January 1998, Bulletin de la Societe belge d'ophtalmologie,
Estelle Cateau, and Tiphaine Mergey, and Catherine Kauffmann-Lacroix, and Marie-Helene Rodier
July 1985, Parasitology today (Personal ed.),
Copied contents to your clipboard!