enon, photoreactivation, was later observed in several other organisms such as bacteriophages (DULBECCO 1950), bacteria and fungi of the genera Penicillium and Neurospora ( KELNER 1952). Reactivation of cells inactivated by ultraviolet irradiation was also obtained by means of pyruvic acid and other acids of the Krebs cycle (THOMPSON, MEFFERD and WYSS 1951; HEINMETS et al. 1954). Up to the end ...

In the present study, nine terverticillate Penicillium isolates (P. griseofulfum, P. puberulum, P. crustosum, P. aurantiogriseum, P. chrysogenum, P. primulinum, P. expansum, P. viridicatum, Eupenicillium egyptiacum) from 56 soil samples were characterized genetically by a PCR method. The DNAs of the strains were isolated using the glass beads and vortexing extraction method and then used for PC...

Forty eight soil samples were collected from 12 garbage waste soils of Ranchi, Jharkhand and screened for presence of keratinophilic fungi using hair baiting techniques for isolation. Fungal growths appearing on the baits after two to four weeks of incubation at room temperature were microscopically examined and cultured on mycological media. Cultures were then identified on the basis of coloni...

Several fungal isolates obtained from two cured meat products from Spain were identified as Penicillium nalgiovense by their morphological features and by DNA fingerprinting. All P. nalgiovense isolates showed antibiotic activity in agar diffusion assays, and their penicillin production in liquid complex medium ranged from 6 to 38 microgram. ml-1. We constructed a restriction map of the penicil...

Although there are a large number of species of fungi, only a relative few have been found to produce antibiotics, and only seven antibiotics are produced commercially. The 1970 Information Bulletin, No. 8 (3) of the International Center of Information on Antibiotics lists 338 species of fungi that produce antibiotics. According to 1967 (11) and 1970 (13) lists assembled by Perlman, the followi...

The effect of mono-culture fungal fermentation on mineral composition and amino acid profile of mango (Mangifera indica) kernel cake was investigated. Rhizopus oligosporus, Aspergillus niger, Rhizopus stolonifer and Penicillium chrysogenum were isolated from decomposed mango kernels and then used to ferment mango kernel cake (MKC) for 168hrs. After fermentation the resulted MKC was dried at 60C...

RNA interference (RNAi) is a sequence-specific post-transcriptional gene silencing system that downregulates target gene expression. Here, we provide several lines of evidence for RNA silencing in the industrial beta-lactam antibiotic producer Penicillium chrysogenum using the DsRed reporter gene under the control of the constitutive trpC promoter or the inducible xylP promoter. The functional ...