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| Yilmaz, N.; Houbraken, J.; Hoekstra, E.S.; Frisvad, J.C.; Visagie, C.M.; Samson, R.A.. |
| Taxa of the Talaromyces purpurogenus complex were studied using a polyphasic approach. ITS barcodes were used to show relationships between species of the T. purpurogenus complex and other Talaromyces species. RPB1, RPB2, β-tubulin and calmodulin sequences were used to delimit phylogenetic species in the complex. These data, combined with phenotypic characters, showed that the complex contains four species: T. purpurogenus, T. ruber comb. nov. and two new species T. amestolkiae sp. nov. and T. stollii sp. nov. The latter three species belong to the same clade and T. purpurogenus is located in a phylogenetic distant clade. The four species all share similar conidiophore morphologies, but can be distinguished by macromorphological characters. Talaromyces... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Penicillium purpurogenum; Rubratoxin; Polyphasic taxonomy. |
| Ano: 2012 |
URL: http://www.repository.naturalis.nl/record/531835 |
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| Dhake,A.B.; Patil,M.B.. |
| Penicillium purpurogenum was found to produce both extracellular and intracellular fructosyltransferase. The organism could also produce sucrose hydrolytic enzyme. Sucrose was found to be the best carbon source for fructosyltransferase production. Maximum intracellular and extracellular fructosyltransferase production was observed after 3rd and 4th day of cultivation, respectively. The enzyme activity was optimum at temperature of 55ºC and pH 5.5. The addition of amino acids, like leucine induced slightly the extracellular fructosyltransferase production, where as histidine and leucine had little inductive effect on intracellular fructosyltransferase production. Enhanced production of fructosyltransferase by Penicillium purpurogenum was observed when... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fructooligosaccharides; Frutosyltransferase; Penicillium purpurogenum. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822007000200002 |
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| Silva,Tony Márcio; Oliveira,Maurício de; Somera,Alexandre Favarin; Jorge,João Atílio; Terenzi,Héctor Francico; Polizeli,Maria de Lourdes T. M; Guimarães,Luis Henrique Souza. |
| The effect of several nutritional and environmental parameters on Penicillium purpurogenum growth and sacharogenic amylase production was analyzed. High enzyme levels (68.2 U mg-1) were obtained with Khanna medium at initial pH 6.0, incubated at 30ºC for 144 hours. The optimum pH and temperature activities were 5.0 and 65ºC, respectively. The enzyme presented a half-life (t50) of 60 min, at 65ºC. Only glucose was detected after 24 hours of reaction using soluble starch as substrate. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amylase; Penicillium purpurogenum; Submerged fermentation. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822011000300035 |
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