1. In relatively low concentrations of NaCl, KCl, and CaCl(2) the rate of respiration of Bacillus subtilis remains fairly constant for a period of several hours, while in the higher concentrations, there is a gradual decrease in the rate. 2. NaCl and KCl increase the rate of respiration of Bacillus subtilis somewhat at concentrations of 0.15 M and 0.2 M respectively; in sufficiently high concen...

In this study, we have shown the microbial alkaline protease production by using isolated Bacillus subtilis. Bacillus subtilis which produces an extracellular alkaline protease was isolated from meet surface purchased from local Egyptian markets. Maximum enzyme activity was achieved when the bacterium was grown on corn steep liquor (2.0 %, w/v) instead of soybean meal (2 %) followed by casein h...

Natural competence is the ability of certain microbes to take up exogenous DNA from the environment and integrate it in their genome. Competence development has been described for a variety of bacteria, but has so far not been shown to occur in Bacillus cereus. However, orthologues of most proteins involved in natural DNA uptake in Bacillus subtilis could be identified in B. cereus. Here, we re...

The antibacterial activity of Wrightia tinctoria (Roxb.) R. Br. callus extract was studied against selected pathogenic bacterial strains, Escherichia coli, Staphylococcus aureus, Pseudomonas aeruginosa and Bacillus subtilis by Agar disc diffusion method. Among the three solvents and water were used , methanol extract of callus showed higher inhibition zone against Pseudomonas aeruginosa (27 mm)...

Citation: Li K, Yuan X-X, Sun H-M, Zhao L-S, Tang R, Chen Z-H, Qin Q-L, Chen X-L, Zhang Y-Z and Su H-N (2018) Atomic Force Microscopy of Side Wall and Septa Peptidoglycan From Bacillus subtilis Reveals an Architectural Remodeling During Growth. Front. Microbiol. 9:620. doi: 10.3389/fmicb.2018.00620 Atomic Force Microscopy of Side Wall and Septa Peptidoglycan From Bacillus subtilis Reveals an Ar...

Jochen Schneider3, Kambiz Taraz3, Herbert Budzikiewicz3 *, Magali D eleub, Philippe Thonartb, Philippe Jacquesb a Institut für Organische Chemie der Universität zu Köln, Greinstr. 4, D-50939 Köln, Germany. Fax: + 49 -221-470-5057 . E-mail: [email protected] b Faculte Universitaire des Sciences Agronomiques, B-5030 Gembloux, Belgium * Author for correspondence and reprint requests Z. N...

Phytochemical screening and antimicrobial activity of chloroform, acetone and methanolic extracts of Calotropis procera (Ait.) R. Br. (Asclepiadaceae) flowers were tested against various pathogens such as Salmonella paratyphi, S. paratyphi A, Bacillus subtilis, Bacillus thuringiensis, Proteus mirabilis, Proteus vulgaris, Pseudomonas aeruginosa, Staphylococcus aureus and Escherichia coli. Phytoc...

A rapid and cost-effective colorimetric sensor has been developed for the detection of bacteria (Bacillus subtilis was selected as an example). The sensor was designed to rely on lysozyme-capped AuNPs with the advantages of effective amplification and high specificity. In the sensing system, lysozyme was able to bind strongly to Bacillus subtilis, which effectively induced a color change of the...

Bacillus thuringiensis produces crystal proteins (Cry) that account for up to 25% of the dry cell weight during the stationary phase. The high-level expression and stationary phase-specific autoinduction of the cry gene led to development of a cry promoter-based Bacillus expression system. Among the various cry promoters, cry3Aa promoter was selected by comparing the lacZ expression levels in B...

Microbial degradation of petroleum hydrocarbons is one of the major practices in natural decontamination process. The present study investigated about the isolation of bacteria from crude oil contaminated site and gravimetric analysis of degradation in which, two bacterial isolates formed maximum clearing zone on mineral salt medium. Among these isolate S2 showed maximum growth (0.85mg/ml) and ...