We studied the biodegradation of compounds containing phosphorus-to-carbon bonds by using a wild-type strain of Penicillium notatum. The substrate specificity of this strain was studied, and we found that it is able to utilize structurally diverse organophosphonates as sole sources of phosphorus. This ability seems to be inducible, as indicated by the presence of a lag phase during growth. A po...

In a preliminary communication (Ghosh, 1959) it was reported that fresh and wet mycelium of Penicillium chrysogenum, as obtained from a rotary filter in a penicillin plant, could be well utilized as the sole source of nitrogen for penicillin production by the mold either in shaken flask or in aerated and agitated large fermentors. The waste mycelium did not need any pretreatment whatsoever and ...

The title meroterpene neoaustin {systematic name: (1'S,2'R,3S,7'R,9'S,11'S,12'R)-11'-hydr-oxy-2,2,2',9',12'-penta-methyl-6',15'-dimethyl-ene-2,6-dihydro-13'-oxaspiro-[pyran-3,5'-tetra-cyclo-[7.5.1.0(1,11).0(2,7)]penta-deca-ne]-6,10',14'-trione}, C(25)H(30)O(6), comprises five rings, three six-membered and two five-membered. The absolute configuration was established based on [α(D)] = +166.91° (...

A study was made of Penicillium chrysogenum and some other fungi to determine the relative distribution of intra- and extracellular invertase produced by them in submerged fermentation. The proportion of each type of enzyme varied with the organism and the period of fermentation. More of the enzyme initially bound to the mycelium was released into the medium with the progress of fermentation. D...

Conidia of Penicillium chrysogenum and Penicillium frequentans and sporangiospores of Rhizopus rhizopodiformis, Rhizomucor pusillus, and Mucor racemosus were subjected to partition in aqueous polymer two-phase systems. The partition behavior differed drastically between the conidia of the two Penicillium species and the sporangiospores of the three species of phycomycetes. This difference in pa...

conclusions it was shown that partial β-tubulin sequence, as a reliable genetic target, supported specific morphological criteria for identification of the penicillium species. like other assessments throughout the world, p. chrysogenum remains the most frequent environmental penicillium species in mazandaran and tehran provinces. results sequence analysis of bt2 and morphological criteria of 2...

Production of intracellular β-xylosidase was studied in cultures of Penicillium janthinellum grown on citrus fruit waste supplemented cultivation media. Both dried orange peel and sweet lime peel could induce the production of this enzyme. The working strain showed a pronounced optimum pH and temperature for β-xylosidase production at 6.0 and 27 °C, respectively. The enzyme production was found...

The unusual attribution of trace amounts of ochratoxin A in some Chinese food commodities to Penicillium polonicum is questioned by European experience in searches for ochratoxinogenic food-spoilage Penicillia, where mistaken attribution is now known to have been due to cryptic Penicillium verrucosum contamination. Consequently, selection of single-spore isolates is recommended as pre-requisite...