Author/Editor		Sonjak, Silva; Frisvad, Jens Christian; Gunde-Cimerman, Nina
Title		Comparison of secondary metabolite production by Penicillium crustosum strains, isolated from Arctic and other various ecological niches
Type		članek
Source		FEMS Microbiol Ecol
Vol. and No.		Letnik 53
Publication year		2005
Volume		str. 51-60
Language		eng
Abstract		Penicillium crustosum is common in food and feed both in subtropical and temperate regions. Recently, it has also been found occurring frequently in glacier ice, sea ice and sea water of Arctic regions of Svalbard. The aim of the study was to compare isolates of the same fungal species from widely different habitats and geographic regions to see if the nutritional physiology and the profile of secondary metabolites were consistent or depended on the isolation source. All 121 strains examined produced the following families of secondary metabolites: penitrems (100%), roquefortines (100%), terrestric acids (99.2%) and viridicatols (100%), whereas 81 of 83 Arctic isolates additionally produced andrastin A. However, anly 8 of 38 non-Arctic isolates produced deteetable andrastin A. The quantitative profiles of 96 strains were compared using cluster, principal component and correspondence analyses. There was no clear grouping of Aretic versus non-Arctie, creatine positive versus creatine negative strains.
Descriptors		PENICILLIUM ECOSYSTEM MYCOTOXINS ARCTIC REGIONS CHROMATOGRAPHY, HIGH PRESSURE LIQUID