title: Differentiation of aflatoxigenic and non-aflatoxigenic strains of Aspergilli by FT-IR spectroscopy.
abstract: Fourier transform infrared spectroscopy (FT-IR) is a well-established and widely accepted methodology to identify and differentiate diverse microbial species. In this study, FT-IR was used to differentiate 20 strains of ubiquitous and agronomically important phytopathogens of Aspergillus flavus and Aspergillus parasiticus. By analyzing their spectral profiles via principal component and cluster analysis, differentiation was achieved between the aflatoxin-producing and nonproducing strains of both fungal species. This study thus indicates that FT-IR coupled to multivariate statistics can rapidly differentiate strains of Aspergilli based on their toxigenicity.
authors: Department of Biochemistry, Molecular Biology, Entomology, and Plant Pathology, P.O. Box 9655, Mississippi State University, Mississippi State, MS 39762 USA.
authors: Curtis
authors: C
authors: Atkinson
authors: Olga
authors: O
authors: Pechanova
authors: Darrell L
authors: DL
authors: Sparks
authors: Ashli
authors: A
authors: Brown
authors: Jose M
authors: JM
authors: Rodriguez
mesh_terms: D000348:Aflatoxins / Q000737:chemistry; D001230:Aspergillus / Q000737:chemistry* / Q000145:classification*; D015999:Multivariate Analysis; D025341:Principal Component Analysis; D017550:Spectroscopy, Fourier Transform Infrared / Q000379:methods*
chemical_list: D000348:Aflatoxins