Bacillus subtilis

against gram three gram negative bacteria (Escherichia coli ATCC 25922, Pseudomonas aeruginosa ATCC 27853, Acinetobacterbaumannii RSKK 02026), three gram positive bacteria (Staphylococcus aureus ATCC 25923, Enterococcus faecalis ATCC 07005, Bacillus subtilis ATCC 6633) Ӧzdemir Ӧ. et al, (2015 ). They have reported that all compound show mild to moderate activity against gram negative bacteria but more active in gram positive bacteria. Figure 2.3.3 and Figure 2.3.4 are the tabulation data for…

aeruginosa, Morganella morganii, Aeromonas hydrophila, Enterococcus species, Serratia marcescens, Proteus mirabilis, Shewanella putrefaciens, Enterobacter aerogenes, Salmonella typhi, Citrobacter freundii, Klebsiella pneumoniae, Bacillus subtilis, Bacillus megaterium, Bacillus cereus etc and anaerobes includes Clostridium perfringens, Streptococcus species, Bacteroides species(). R.S. Baylock 2001 studied bacterial…

high pressure saturated steam. The first things to go into the bottles was the medium and three bacterial species that the Colpidium and Paramecium have as there food resource. The three bacterial species include Serratia marcescens, Bacillus cereus and Bacillus subtilis. After twenty four hours the bacterivores were added into the microcosms, then a week after the Didinium predators were added. The experiments were run with two main factors the temperatures and having a presence or absence of…

Plant Material Collection Fully grown whole plants of Tribulus terrestris Linn. were collected from different localities of Chennai, Tamilnadu. The fruits were separated out from the plants and washed in running tap water to remove adhering dirt and soil particles and dried first under shade in room temperature and secondly in a hot-air oven for complete drying at 50-60˚C. The dried fruits were made into coarse powder by grinding and stored in labelled bottles for further study and…

are a few types of Streptomyces including clavuligerus, cattleya, and griseus. These all work against both gram-positive and gram-negative bacteria. Another type of organism responsible for creating antimicrobial agents is Bacillus subtilis which inhibits wall synthesis and Bacillus polymyxa that disrupts the cell membrane (Harvey,1998). Since there are so many different microorganisms that create antimicrobial agents there will continue to be new species discovered for a long time. Lastly,…

The overall purpose of the study was to create a model based off the crystal structure of the endonuclease domain of Bacillus subtilis MutL. This structure, in particular, exposes the presence of zinc in the binding site which is important for the MMR function of BsMutL in vivo. From there, they proposed a model describing the association of MutS and DNA polymerase III, β clamp with MutL, and nicking of a synthesized DNA strand. The importance of MutL is in its united effort with MutS to…

functions of the other forms of DNA are less clear. The formation of them is dependent upon either binding of a protein or under conditions which favour that structure. A-DNA has been identified as a protective mechanism in spores of the bacterium Bacillus subtilis. The increased stability compared to B-DNA makes it less vulnerable to damage by UV radiation, leading to resistance in these bacteria to UV. A similar mechanism has also been found in bacteria, which combats the effects of extreme…

Introduction: The purpose of the tests (culture media, motility, enzymes, etc.) we preform on the numerous bacteria in lab is to show any biological or chemical characteristics of the bacteria that may help it survive or adapt in the wild, how it may be useful or hazardous to humans, and use as general knowledge to differentiate bacteria from each other. In the Culture Media test we can use solid and liquid media to grow multiple bacteria in lab. It can help us determine what processes the…

Deinococcus radiodurans was discovered in 1956 by scientists accidently, after a can of corned beef had been treated with radiation in order to kill any harmful microorganisms that might have been present in the canned meat. Since its accidental discovery, D. radiodurans has been intriguing scientists with is astonishing resistance to ionizing radiation, UV radiation, electrophilic mutagens, oxidizing agents, and desiccation. This gram-positive bacteria usually forms in spherical pairs or…

S.aureus can be sensitized to B-lactams by preventing WTA biosynthesis through inactivation of TarO, which catalyses the first step of the WTA pathway(Maki,Campbell). This identified WTA biosynthesis as an attractive target for novel strategies to treat MRSA. WTAs are structurally diverse anionic polymers covalently attached to PG(Vollmer,Swoboda) and in S.aureus consist of a polyribitol-phosphate backbone of 11-40 repeating units(Xia10) decorated with three tailoring modifications:…