| corymbiferan lactones from penicillium hordei: stimulation of novel phenolic metabolites using plant tissue media. | cultivation of a strain of penicillium hordei on macerated tulip tissue agar resulted in the stimulated production of a series of four novel hydroxymethyl naphthalene carboxylic acid lactones from the fungus. the naphthalene derivatives were isolated using a combination of vacuum liquid chromatography and preparative hplc. their structures were determined by 1d and 2d nmr techniques in conjunction with high-resolution electrospray mass spectrometry (hresims). these metabolites were given the tri ... | 2004 | 15568774 |
| host-derived media used as a predictor for low abundant, in planta metabolite production from necrotrophic fungi. | penicillium ser. corymbifera strains were assayed on a variety of media and from infected allium cepa tissues to evaluate the stimulation and in planta prediction of low abundance metabolites. | 2006 | 17105559 |
| roquefortine/oxaline biosynthesis pathway metabolites in penicillium ser. corymbifera: in planta production and implications for competitive fitness. | three strains of each of the seven taxa comprising the penicillium series corymbifera were surveyed by direct injection mass spectrometry (ms) and liquid chromatography-ms for the production of terrestric acid and roquefortine/oxaline biosynthesis pathway metabolites when cultured upon macerated tissue agars prepared from allium cepa, zingiber officinale, and tulipa gesneriana, and on the defined medium czapek yeast autolysate agar (cya). a novel solid-phase extraction methodology was applied fo ... | 2005 | 16195849 |
| lipolytic activity and degradation of rapeseed oil and rapeseed by spoilage fungi. | aspergillus, eurotium and penicillium spp. from rapeseed were able to grow and produce lipases over a range of water activities (aw) at both 15 and 25 degrees c on tributyrin agar. the ability to produce lipases was not directly related to growth rate. the clearing zone: growth rate ratios gave lipase indices which varied markedly between test fungi and with aw. the fungi with the highest indices were aspergillus candidus and aspergillus versicolor and penicillium expansum and penicillium hordei ... | 1993 | 8217518 |