The filtrate broth as well as mycelium of the new strain Streptomyces erythrochromogenes nov. sp. isolated from Saudi Arabian soil, produce the antitumor antibiotic daunomycin 1 and two anthracyclic derivatives: 7-deoxy 13-dihydrodaunomycinone 2 and 7-deoxy daunomycinone 4. The biotransformation of 1 to 2 and 4 by an acellular enzyme preparation from the strain was found to be NADPH and/or NADH...

Clostridium sp. strain TO-931 can rapidly convert the primary bile acid cholic acid to a potentially toxic compound, deoxycholic acid. Mixed oligonucleotide probes were used to isolate a gene fragment encoding a putative bile acid transporter from Clostridium sp. strain TO-931. This DNA fragment had 60% nucleotide sequence identity to a known bile acid transporter gene from Eubacterium sp. stra...

An entomopathogenic, Gram-negative bacterium isolated from a female specimen of the fruit fly Drosophila melanogaster was taxonomically characterised. Strain L48(T) was strictly aerobic, non-fermentative, oxidase and catalase positive, rod-shaped, and motile due to a polar inserted flagellum. Phylogenetic analysis of the 16S rRNA gene and three other housekeeping genes placed strain L48 (T) in ...

We report the main characteristics of 'Actinomyces provencensis' strain SN12T sp. nov., 'Corynebacterium bouchesdurhonense' strain SN14T sp. nov., 'Corynebacterium provencense' strain SN15T sp. nov. and 'Xanthomonas massiliensis' strain SN8T sp. nov., which were all isolated from stool samples from obese French patients.

A bacterial consortium was developed by continuous enrichment of microbial population isolated from sediment core of pulp and paper mill effluent in mineral salts medium (MSM) supplemented with pentachlorophenol (PCP) as sole source of carbon and energy in the chemostat. The consortia contained three bacterial strains. They were identified as Escherichia coli, Pseudomonas aeruginosa and Acineto...

A new salicyl lactone was detected from the unidentified Oulenzia sp. and its chemical structure was elucidated as 7-hydroxyphthalide (7-hydroxy-3H-isobenzofuran-1-one), based on its GC/MS and GC/FT-IR data and SiO2 column behavior. The compound was synthesized by NaBH4 reduction of 3-hydroxyphthalic anhydride. The GC/MS and GC/FT-IR spectra of the natural compound were consistent with those of...

Mettifogo E., Buzinhani M., Buim M.R., Timenetsky J. & Ferreira A.J.P. 2015. Evaluation of a PCR multiplex for detection and differentiation of Mycoplasma synoviae, M. gallisepticum, and M. gallisepticum strain F-vaccine. Pesquisa Veterinária Brasileira 35(1):13-18. Departamento de Patologia, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, Av. Prof. Orlando Marques de ...

In the present investigation partially purified alkaline protease from Aspergillus sp. As#6 and As#7 strains were entrapped in calcium alginate beads and characterized using casein as a substrate. Temperature and pH maxima of protease from As#6 strain showed no changes before and after immobilization and remained stable at 45C and pH 9, respectively. However km value was slightly shifted from 4...