Relationships between free living amoebae and Exophiala dermatitidis: a preliminary study.
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.
Cateau
Estelle
E
Laboratoire de parasitologie et mycologie médicale, CHU La Milétrie, Poitiers, France. estelle.cateau@chu-poitiers.fr
Mergey
Tiphaine
T
Kauffmann-Lacroix
Catherine
C
Rodier
Marie-Helene
MH
D048248:Acanthamoeba castellanii / Q000254:growth & development* / Q000302:isolation & purification; D000818:Animals; D015169:Colony Count, Microbial; D017753:Ecosystem; D005093:Exophiala / Q000254:growth & development* / Q000302:isolation & purification; D005618:Fresh Water / Q000382:microbiology / Q000469:parasitology; D006249:Hartmannella / Q000254:growth & development* / Q000302:isolation & purification; D006761:Hospitals; D014881:Water Supply