BACKGROUND Bacillus spores are notoriously resistant to unfavorable conditions such as UV radiation, gamma-radiation, H2O2, desiccation, chemical disinfection, or starvation. Bacillus pumilus SAFR-032 survives standard decontamination procedures of the Jet Propulsion Lab spacecraft assembly facility, and both spores and vegetative cells of this strain exhibit elevated resistance to UV radiation...

the probiotic effects of two gram positive bacteria, bacillus subtilis and bacillus licheniformis, were examined on growth performance, body composition and survival rate of artemia urmiana. three diets containing 102 (t1), 104 (t2), 106 (t3) cfu of probiotics g feed-1 and a control diet (c) without probiotic were used through a completely randomized design (each with three replicates). the use...

The membrane penicillinases of Bacillus licheniformis and Bacillus cereus are lipoproteins with N-terminal glyceride thioether modification identical to that of the Escherichia coli outer membrane lipoprotein. They are readily labeled with [3H]palmitate present during exponential growth. At the same time, a few other proteins in each organism become labeled and can be detected by fluorography a...

Bacillus licheniformis is a spore-producing bacteria. The present study aims to identify maximum sporulation in through induced heat shock conditions using different solidified media and broth media. Suspensions of spores were spread-plated on nutrient agar plates before after treatments 60°C, 80°C 100°C for 30 minutes. number was determined by the dilution plate count method. result indicates ...

Several bacterial cultures were isolated from sponge Halichondria sp., collected from the Gujarat coast of the Indo Pacific region. These bacterial cultures were fermented in the laboratory (100 mL) and the culture filtrate was assayed for antibiotic activity against 16 strains of clinical pathogens. Bacillus sp. (SAB1), the most potent of them and antagonistic to several clinically pathogenic ...

Tryptophan, phenylalanine, tyrosine, and several other metabolites are all synthesized from a common precursor, chorismic acid. Since tryptophan is a product of an energetically expensive biosynthetic pathway, bacteria have developed sensing mechanisms to downregulate synthesis of the enzymes of tryptophan formation when synthesis of the amino acid is not needed. In Bacillus subtilis and some o...

The spore-forming bacterium Bacillus licheniformis is a common contaminant of milk and milk products. Strains of this species isolated from dairy products can be differentiated into three major groups, namely, G, F1, and F2, using random amplification of polymorphic DNA (RAPD) analysis; however, little is known about the genomic differences between these groups and the identity of the fragments...

Combined effect of whey protein isolate and low temperature with nisin on survival of Bacillus licheniformis were investigated. Sterile imitated milk solution prepared from casein, milk fat, lactose and distilled water was mixed with different whey protein isolate levels of 0, 1, 2 and 4% (w/v) and 100 IU/ml nisin. After mixed thoroughly, the milk solution was aseptically inoculated with 3.74-3...

Psychrotolerant spore-forming bacteria represent a major challenge to the goal of extending the shelf life of pasteurized dairy products. The objective of this study was to identify prominent phylogenetic groups of dairy-associated aerobic sporeformers and to characterize representative isolates for phenotypes relevant to growth in milk. Analysis of sequence data for a 632-nucleotide fragment o...