Open AccessComparison of secondary metabolite production by Penicillium crustosum strains, isolated from Arctic and other various ecological niches
Author(s) -
Sonjak Silva,
Frisvad Jens Christian,
GundeCimerman Nina
Publication year - 2005
Publication title -
fems microbiology ecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.377
H-Index - 155
eISSN - 1574-6941
pISSN - 0168-6496
DOI - 10.1016/j.femsec.2004.10.014
Subject(s) - biology , arctic , psychrophile , subtropics , ecological niche , ecology , secondary metabolite , temperate climate , habitat , bacteria , biochemistry , genetics , gene
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, only 8 of 38 non‐Arctic isolates produced detectable andrastin A. The quantitative profiles of 96 strains were compared using cluster, principal component and correspondence analyses. There was no clear grouping of Arctic versus non‐Arctic, creatine positive versus creatine negative strains.