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| Content Provider | PubMed Central |
|---|---|
| Author | Jimenez, M. Mateo, R. Querol, A. Mateo, J. J. Hernandez, E. |
| Abstract | The production of patulin and griseofulvin by 49 different isolates of Penicillium griseofulvum Dierckx was analyzed by high-performance liquid chromatography. Eleven isolates were obtained from pistachio nuts, 37 were obtained from wheat seeds, and 1 was obtained from the American Type Culture Collection. Activities of 19 enzymes were also assayed by the API ZYM system. From these results it may be deduced that there are two different groups among the strains tested which cannot be distinguished by morphological and cultural characteristics. One group of isolates did not produce detectable amounts of patulin and griseofulvin when grown in sucrose-yeast extract and Wickerham media, while enzymatic activities were quantitatively distinct from the other group, which produced patulin and griseofulvin in variable proportions. Leucine arylamidase, phosphoamidase, and beta-D-glucosidase are the main enzymes with differing activities between the two groups. Differences in physiological characteristics among isolates of a single species reveal shortcomings in the classification of the penicillia based only on morphological criteria. Thus, determination of the ability to yield mycotoxins and antibiotics as well as determination of enzymatic activities appear to be very valuable tools in the taxonomy of these fungi and for food toxicology. |
| Starting Page | 3718 |
| File Format | |
| ISSN | 10985336 |
| e-ISSN | 10985336 |
| Journal | Applied and Environmental Microbiology |
| Issue Number | 12 |
| Volume Number | 56 |
| Language | English |
| Publisher Date | 1990-12-01 |
| Access Restriction | Open |
| Subject Keyword | Research in Higher Education |
| Content Type | Text |
| Resource Type | Article |
| Subject | Ecology Food Science Applied Microbiology and Biotechnology Biotechnology |
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