title: [Studies on the ecological behavior of Cryptococcus neoformans].
abstract: Tenacity studies of Cryptococcus neoformans in bird droppings originated from different ornamental birds and chickens showed that there is less chance for this fungus species to survive in non-sterile or bacteria-free droppings of large parakeets and chickens in comparison with droppings of small parakeets. Survival rates of Cr. neoformans in buffer solutions with pH-values ranging from 8.5-9.5 allow to conclude that this species is not alkali-sensitive. Therefore, the increase of pH is not regarded responsible for the survival of Cr. neoformans in bird droppings. Possibly fungistatic substances present in droppings are involved.
authors.affiliation: Bundesinstitut für gesundheitlichen Verbraucherschutz und Veterinärmedizin, Fachgebiet Mykologie des Bereiches Jena, BR Deutschland.
authors.forename: P
authors.initials: P
authors.lastname: Kielstein
mesh_terms: D000818:Animals; D001717:Birds / Q000382:microbiology*; D002645:Chickens / Q000382:microbiology*; D003455:Cryptococcus neoformans / Q000254:growth & development / Q000302:isolation & purification / Q000502:physiology*; D005243:Feces / Q000382:microbiology; D006863:Hydrogen-Ion Concentration; D010240:Parakeets / Q000382:microbiology
vernacular_title: Untersuchungen zum ökologischen Verhalten von Cryptococcus neoformans.