TY - JOUR
T1 - Metabolite production by different Ulocladium species
AU - Andersen, Birgitte
AU - Hollensted, Morten
N1 - Funding Information:
The authors would like to thank Prof. Emory G. Simmons for donation of ex-type and representative strains and Prof. Jens C. Frisvad for fruitful discussions. This study was partly funded by the Danish Research Agency (FTP) via the project “ Excretomics and proteomics of mycotoxigenic food-borne fungi ” and partly by the VILLUM KANN RASMUSSEN foundation.
Copyright:
Copyright 2009 Elsevier B.V., All rights reserved.
PY - 2008/8/15
Y1 - 2008/8/15
N2 - Ulocladium, which is phylogenetically related to Alternaria, contains species that are food spoilers and plant pathogens, but also species that have potential as enzyme producers and bio-control agents. Ulocladium spp. are often found on dead vegetation, in soil, air and dust, but also on food and feedstuffs and on water-damaged building materials. The aim was to study the morphological and chemical diversity within the genus Ulocladium. Cultures of 52 Ulocladium strains were identified morphologically, and then extracted and analyzed using automated Chemical Image Analysis. Production of individual metabolites was correlated to species identity and source of isolation (substratum). Chemical analyses corroborated the morphological identifications and showed the existence of several species species-specific metabolites, of which most were known compounds. The production of curvularins was specific to Ulocladium atrum, while most species produced infectopyrones and derivatives of altertoxin I. None of the 52 Ulocladium strains produced alternariols, tenuazonic acid, altersolanols or macrosporin, which are common in species of Alternaria.
AB - Ulocladium, which is phylogenetically related to Alternaria, contains species that are food spoilers and plant pathogens, but also species that have potential as enzyme producers and bio-control agents. Ulocladium spp. are often found on dead vegetation, in soil, air and dust, but also on food and feedstuffs and on water-damaged building materials. The aim was to study the morphological and chemical diversity within the genus Ulocladium. Cultures of 52 Ulocladium strains were identified morphologically, and then extracted and analyzed using automated Chemical Image Analysis. Production of individual metabolites was correlated to species identity and source of isolation (substratum). Chemical analyses corroborated the morphological identifications and showed the existence of several species species-specific metabolites, of which most were known compounds. The production of curvularins was specific to Ulocladium atrum, while most species produced infectopyrones and derivatives of altertoxin I. None of the 52 Ulocladium strains produced alternariols, tenuazonic acid, altersolanols or macrosporin, which are common in species of Alternaria.
KW - Chemotaxonomy
KW - Food safety
KW - Indoor environment
KW - Morphology
KW - Multivariate statistics
KW - Phylogeny
UR - http://www.scopus.com/inward/record.url?scp=48149085732&partnerID=8YFLogxK
U2 - 10.1016/j.ijfoodmicro.2008.05.036
DO - 10.1016/j.ijfoodmicro.2008.05.036
M3 - Journal article
C2 - 18599140
AN - SCOPUS:48149085732
SN - 0168-1605
VL - 126
SP - 172
EP - 179
JO - International Journal of Food Microbiology
JF - International Journal of Food Microbiology
IS - 1-2
ER -