Open AccessGrowth and mycotoxin production by Aspergillus fumigatus strains isolated from a saltern
Author(s) -
Tepšič Katarina,
GundeCimerman Nina,
Frisvad Jens C
Publication year - 1997
Publication title -
fems microbiology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.899
H-Index - 151
eISSN - 1574-6968
pISSN - 0378-1097
DOI - 10.1111/j.1574-6968.1997.tb12745.x
Subject(s) - mycotoxin , aspergillus fumigatus , microfungi , aspergillus , biology , microbiology and biotechnology , gliotoxin , fungus , thin layer chromatography , ochratoxin , diacetoxyscirpenol , food science , high performance liquid chromatography , ochratoxin a , botany , chemistry , zearalenone , chromatography
Different microfungi were isolated from salty soil and hypersaline water samples, taken from the extreme environment of operating marine solar salterns. The filamentous fungus most frequently and repeatedly isolated was identified as the pathogen Aspergillus fumigatus . Because of its great morphological variability and mycotoxin production ability, 50 A. fumigatus isolates were selected for additional characterisation by their secondary metabolites profile, which was determined by thin layer chromatography (TLC) and high performance liquid chromatography (HPLC). At standard conditions 45% of the isolated strains produced different mycotoxins and in ecological conditions prevailing in the saltern (high salinity and temperature) production of important mycotoxins (verruculogen, fumitremorgins B and C, fumigaclavine A) was lowered or inhibited.