Cotransduction analysis in Streptomyces venezuelae with the generalized transducing phage SV1 showed that several pairs of likely analogs of markers that are adjacent on the conjugational linkage map of Streptomyces coelicolor A3(2) were cotransducible and therefore physically close together. This supports the contention that taxonomically distinct "species" of Streptomyces are genetically clos...

We report here the high-quality genome sequences of three Streptomyces spp. isolated as part of a long-term study of microbial soil ecology. Streptomyces sp. strain GS93-23 was isolated from naturally disease-suppressive soil (DSS) in Grand Rapids, MN, and Streptomyces sp. strains S3-4 and 3211-3 were isolated from experimental plots in the Cedar Creek Ecosystem Science Reserve (CCESR).

the aim of this study was to find the optimal conditions of a newly isolated streptomyces strain jrs 19. screening for keratinase producing bacteria and their keratinase production were investigated. the keratinase produced by the isolate was purified by chromatographic techniques and the optimum ph maintained was 7.0 and maintained at different temperatures viz., 20ºc, 25ºc, 30ºc, 35ºc and 40º...

Interspecies signaling may be defined as the induced change in phenotype of one species by another that is not due to the metabolism of the signal. Although suggested to be a relatively widespread phenomenon, the role of signaling in natural soil communities has not been thoroughly studied. Within Streptomyces communities in soil, understanding the impacts of interspecies signaling on species i...

Here, we report the draft genome sequence of Streptomyces specialis type strain GW41-1564, which was isolated from soil. This 5.87-Mb genome exhibits a high G+C content of 72.72% and contains 5,486 protein-coding genes.

The active-site serine of the extracellular beta-lactamases of Streptomyces cacaoi and Streptomyces albus G has been labelled with beta-iodopenicillanate. The determination of the sequence of the labelled peptides obtained after trypsin digestion of the denatured proteins indicate both enzymes to be class A beta-lactamases. Surprisingly the two Streptomyces enzymes do not appear to be especiall...

We have constructed Escherichia coli-Streptomyces shuttle plasmids which are capable of conjugal transfer from E. coli to Streptomyces spp. These plasmids contained the pBR322 and pIJ101 origins of replication and the RK2 (IncP) origin of transfer. The transfer of plasmid was specifically dependent the presence of a 760-base-pair, cis-acting, oriT-containing fragment and on RP4 (IncP) functions...

A new antibiotic designated MM 14201 has been detected in a culture of Streptomyces sp. NCIB 11813. Methods for the production and purification of MM 14201 are described. Biological evaluation has shown it has broad spectrum antibacterial activity being most effective against Serratia and Pseudomonas sp. Structural studies are reported which have demonstrated MM 14201 is a new epoxyquinone deri...

Streptomyces griseus strain 45H, isolated in 1960 during a mutagenesis programme on the industrial streptomycin producer S. griseus 52-1, encodes an extracellular, pleiotropic autoregulatory signalling protein, factor C, which stimulates sporulation of S. griseus 52-1 in submerged culture. The facC gene, which codes for factor C, is present in very few streptomycetes and is not present in S. gr...