background and objectives: research on xylanase has markedly increased due to its potential applications in pulping and bleaching processes using cellulose free preparations, textile processes, the enzymatic saccharification of lignocellulosic materials and waste treatment. the present study was aimed at isolation and characterization of xylan degrading strain of bacillus cereus from soil for p...

BACKGROUND The first step of the bacterial lifecycle is the germination of bacterial spores into their vegetative form, which requires the presence of specific nutrients. In contrast to closely related Bacillus anthracis spores, Bacillus cereus spores germinate in the presence of a single germinant, inosine, yet with a significant lag period. METHODS AND FINDINGS We found that the initial lag...

Bacillus cereus is a foodborne pathogen causing emetic and diarrheal-type syndromes. Here, we report the whole-genome sequences of 11 B. cereus food isolates.

objective: bacillus cereus (b. cereus) is a gram-positive, spore-forming bacteria widely distributed in the environment. this bacteria is an opportunistic human pathogen that can cause diarrheal and emetic types of food poisoning. the diarrhea type of food poisoning can be caused by hemolysin bl (hbl), non-hemolytic (nhe), and cytotoxin k enterotoxins. rice is commonly contaminated with b. cere...

Bacillus cereus infections The importance of Bacillus organisms, particularly B. cereus, in local infections has been largely overlooked because they are commonly encountered as contaminants in specimens or cultures. Turnbull et al. (J Clin Pathol 1979 ;32 :289-93) reported severe infections with B. cereus and prompted me to review the recent isolates in this laboratory. In the nine months, Nov...

AIMS Our aim was to assess the diversity of the nutrient germination response of Bacillus cereus spores. METHODS AND RESULTS B. cereus spore germination was monitored by decrease in optical density using a Bioscreen C analyser in response to the major germinant substances inosine and l-alanine. Spores of a set of 12 strains taken to illustrate the diversity of the B. cereus group showed rangi...

Plant-parasitic nematodes cause serious crop losses worldwidely. This study intended to discover the antagonistic mechanism of Bacillus cereus strain S2 against Meloidogyne incognita. Treatment with B. cereus strain S2 resulted in a mortality of 77.89% to Caenorhabditis elegans (a model organism) and 90.96% to M. incognita. In pot experiment, control efficiency of B. cereus S2 culture or supern...

In the present study we characterized 47 food-borne isolates of Bacillus cereus using multilocus sequence typing (MLST). Newly determined sequences were combined with sequences available in public data banks in order to produce the largest data set possible. Phylogenetic analysis was performed on a total of 296 strains for which MLST sequence information is available, and three main lineages--I...

A derivative of Bacillus thuringiensis subsp. kurstaki HD1 (HD1-9) released transducing phage (TP21) from late exponential cultures. Three of seven markers tested were transduced into Bacillus cereus, but only two of these (cysC and trpB/F) were transduced at a frequency of more than 100 times the reversion rates. A limited transduction capacity was given further support in that few chromosomal...

The facultative anaerobe, Bacillus cereus, causes diarrheal diseases in humans. Its ability to deal with oxygen availability is recognized to be critical for pathogenesis. The B. cereus genome comprises a gene encoding a protein with high similarities to the redox regulator, Rex, which is a central regulator of anaerobic metabolism in Bacillus subtilis and other Gram-positive bacteria. Here, we...