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Journal articles on the topic 'Bacillus cereus group species'

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Published: 10 December 2022
Last updated: 31 July 2025

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1

McIntyre, Lorraine, Kathryn Bernard, Daniel Beniac, Judith L. Isaac-Renton, and David Craig Naseby. "Identification of Bacillus cereus Group Species Associated with Food Poisoning Outbreaks in British Columbia, Canada." Applied and Environmental Microbiology 74, no. 23 (2008): 7451–53. http://dx.doi.org/10.1128/aem.01284-08.

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ABSTRACT Food poisoning laboratories identify Bacillus cereus using routine methods that may not differentiate all Bacillus cereus group species. We recharacterized Bacillus food-poisoning strains from 39 outbreaks and identified B. cereus in 23 outbreaks, B. thuringiensis in 4, B. mycoides in 1, and mixed strains of Bacillus in 11 outbreaks.
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2

Vilas-Bôas, G. T., A. P. S. Peruca, and O. M. N. Arantes. "Biology and taxonomy ofBacillus cereus,Bacillus anthracis, andBacillus thuringiensis." Canadian Journal of Microbiology 53, no. 6 (2007): 673–87. http://dx.doi.org/10.1139/w07-029.

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Three species of the Bacillus cereus group (Bacillus cereus, Bacillus anthracis , and Bacillus thuringiensis ) have a marked impact on human activity. Bacillus cereus and B. anthracis are important pathogens of mammals, including humans, and B. thuringiensis is extensively used in the biological control of insects. The microbiological, biochemical, and genetic characteristics of these three species are reviewed, together with a discussion of several genomic studies conducted on strains of B. cereus group. Using bacterial systematic concepts, we speculate that to understand the taxonomic relati
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3

Helgason, Erlendur, Ole Andreas Økstad, Dominique A. Caugant, et al. "Bacillus anthracis, Bacillus cereus, and Bacillus thuringiensis—One Species on the Basis of Genetic Evidence." Applied and Environmental Microbiology 66, no. 6 (2000): 2627–30. http://dx.doi.org/10.1128/aem.66.6.2627-2630.2000.

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ABSTRACT Bacillus anthracis, Bacillus cereus, andBacillus thuringiensis are members of the Bacillus cereus group of bacteria, demonstrating widely different phenotypes and pathological effects. B. anthracis causes the acute fatal disease anthrax and is a potential biological weapon due to its high toxicity. B. thuringiensis produces intracellular protein crystals toxic to a wide number of insect larvae and is the most commonly used biological pesticide worldwide. B. cereus is a probably ubiquitous soil bacterium and an opportunistic pathogen that is a common cause of food poisoning. In contras
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4

Daffonchio, Daniele, Sara Borin, Giuseppe Frova, et al. "A Randomly Amplified Polymorphic DNA Marker Specific for the Bacillus cereus Group Is Diagnostic forBacillus anthracis." Applied and Environmental Microbiology 65, no. 3 (1999): 1298–303. http://dx.doi.org/10.1128/aem.65.3.1298-1303.1999.

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ABSTRACT Aiming to develop a DNA marker specific for Bacillus anthracis and able to discriminate this species fromBacillus cereus, Bacillus thuringiensis, andBacillus mycoides, we applied the randomly amplified polymorphic DNA (RAPD) fingerprinting technique to a collection of 101 strains of the genus Bacillus, including 61 strains of theB. cereus group. An 838-bp RAPD marker (SG-850) specific for B. cereus, B. thuringiensis, B. anthracis, and B. mycoides was identified. This fragment included a putative (366-nucleotide) open reading frame highly homologous to the ypuA gene of Bacillus subtili
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5

Harmon, Stanley M., Donald A. Kautter, and Gayle Lancette. "Lipid Globule Staining to Aid in Differentiating Bacillus Species." Journal of AOAC INTERNATIONAL 74, no. 4 (1991): 649–51. http://dx.doi.org/10.1093/jaoac/74.4.649.

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Abstract The use of the lipid globule stain to aid in differentiating the Bacillus cereus group (i.e., B. cereus, B. cereus var. mycoldes, and B. thurlnglensls) from other Bacillus species was investigated. Smears from colonies grown on suitable agar were made on precleaned slides, stained, and examined microscopically for characteristic deep blue lipid globules. The study included a total of 649 cultures of Bacillus species plus 143 Incompletely characterized Bacillus isolates from food. Only B. cereus, B. cereus var. mycoldes, B. thurlnglensls, B. megaterlum, and B. sphaerlcus were consisten
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6

Rahman, Md-Mafizur, Sang-Jin Lim, and Yung-Chul Park. "Molecular Identification of Bacillus Isolated from Korean Water Deer (Hydropotes inermis argyropus) and Striped Field Mouse (Apodemus agrarius) Feces by Using an SNP-Based 16S Ribosomal Marker." Animals 12, no. 8 (2022): 979. http://dx.doi.org/10.3390/ani12080979.

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Ambiguous, heterogeneous, endospore-forming Bacillus species, notably Bacillus cereus, often produce fatal toxins that threaten human health. We identified Bacillus from wild animal fecal samples (n = 80), including the Korean water deer (n = 25) and striped field mouse (n = 55). Using traditional culture-based methods, 25 animal fecal samples (31.25%; 25/80) were found to be positive for Bacillus species, whereas using molecular techniques, 19 samples (23.75%; 19/80) were found to be positive for the same. In addition, we designed a Bacillus species-specific 16S ribosomal RNA (rRNA) gene mark
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7

Guinebretière, Marie-Hélène, Sandrine Auger, Nathalie Galleron, et al. "Bacillus cytotoxicus sp. nov. is a novel thermotolerant species of the Bacillus cereus Group occasionally associated with food poisoning." International Journal of Systematic and Evolutionary Microbiology 63, Pt_1 (2013): 31–40. http://dx.doi.org/10.1099/ijs.0.030627-0.

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An aerobic endospore-forming bacillus (NVH 391-98T) was isolated during a severe food poisoning outbreak in France in 1998, and four other similar strains have since been isolated, also mostly from food poisoning cases. Based on 16S rRNA gene sequence similarity, these strains were shown to belong to the Bacillus cereus Group (over 97 % similarity with the current Group species) and phylogenetic distance from other validly described species of the genus Bacillus was less than 95 %. Based on 16S rRNA gene sequence similarity and MLST data, these novel strains were shown to form a robust and wel
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8

Kim, Wonyong, Ji-Yeon Kim, Sung-Lim Cho, et al. "Glycosyltransferase – a specific marker for the discrimination of Bacillus anthracis from the Bacillus cereus group." Journal of Medical Microbiology 57, no. 3 (2008): 279–86. http://dx.doi.org/10.1099/jmm.0.47642-0.

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Bacillus anthracis, the aetiological agent of anthrax, has been taxonomically classified with the Bacillus cereus group, which comprises B. cereus, Bacillus thuringiensis, Bacillus mycoides, Bacillus pseudomycoides and Bacillus weihenstephanensis. Although the pathogenesis and ecological manifestations may be different, B. anthracis shares a high degree of DNA sequence similarity with its group member species. As a result, the discrimination of B. anthracis from its close relatives in the B. cereus group is still quite difficult. Suppression subtractive hybridization (SSH) was performed to sea
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9

LIN, S. F., H. SCHRAFT, and M. W. GRIFFITHS. "Identification of Bacillus cereus by Fourier Transform Infrared Spectroscopy (FTIR)." Journal of Food Protection 61, no. 7 (1998): 921–23. http://dx.doi.org/10.4315/0362-028x-61.7.921.

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The objective of this study was to evaluate the potential of Fourier transform infrared spectroscopy (FTIR) for rapid identification of Bacillus cereus isolates. Ten B. cereus group isolates (comprising B. cereus, Bacillus mycoides, and Bacillus thuringiensis strains), five other Bacillus spp., and five non-Bacillus spp. were used. Two types of media, brain heart infusion (BHI) and Trypticase soy agar (TSA), were tested. The results indicated that all B. cereus group isolates produced characteristic absorbance peaks at wave numbers between 1738 and 1740 cm−1 These peaks were not affected by th
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10

Slamti, Leyla, Stéphane Perchat, Myriam Gominet, et al. "Distinct Mutations in PlcR Explain Why Some Strains of the Bacillus cereus Group Are Nonhemolytic." Journal of Bacteriology 186, no. 11 (2004): 3531–38. http://dx.doi.org/10.1128/jb.186.11.3531-3538.2004.

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ABSTRACT Bacillus thuringiensis, Bacillus cereus, and Bacillus anthracis are closely related species belonging to the Bacillus cereus group. B. thuringiensis and B. cereus generally produce extracellular proteins, including phospholipases and hemolysins. Transcription of the genes encoding these factors is controlled by the pleiotropic regulator PlcR. Disruption of plcR in B. cereus and B. thuringiensis drastically reduces the hemolytic, lecithinase, and cytotoxic properties of these organisms. B. anthracis does not produce these proteins due to a nonsense mutation in the plcR gene. We screene
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11

Zegeye, Ephrem Debebe, Brajabandhu Pradhan, Ann-Katrin Llarena, and Marina Aspholm. "Enigmatic Pilus-Like Endospore Appendages of Bacillus cereus Group Species." International Journal of Molecular Sciences 22, no. 22 (2021): 12367. http://dx.doi.org/10.3390/ijms222212367.

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The endospores (spores) of many Bacillus cereus sensu lato species are decorated with multiple hair/pilus-like appendages. Although they have been observed for more than 50 years, all efforts to characterize these fibers in detail have failed until now, largely due to their extraordinary resilience to proteolytic digestion and chemical solubilization. A recent structural analysis of B. cereus endospore appendages (Enas) using cryo-electron microscopy has revealed the structure of two distinct fiber morphologies: the longer and more abundant “Staggered-type” (S-Ena) and the shorter “Ladder-like
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12

Ryzhov, Victor, Yetrib Hathout, and Catherine Fenselau. "Rapid Characterization of Spores of Bacillus cereusGroup Bacteria by Matrix-Assisted Laser Desorption-Ionization Time-of-Flight Mass Spectrometry." Applied and Environmental Microbiology 66, no. 9 (2000): 3828–34. http://dx.doi.org/10.1128/aem.66.9.3828-3834.2000.

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ABSTRACT Matrix-assisted laser desorption-ionization (MALDI) time-of-flight mass spectrometry was used to characterize the spores of 14 microorganisms of the Bacillus cereus group. This group includes the four Bacillus species B. anthracis, B. cereus, B. mycoides, andB. thuringiensis. MALDI mass spectra obtained from whole bacterial spores showed many similarities between the species, except for B. mycoides. At the same time, unique mass spectra could be obtained for the different B. cereus and B. thuringiensis strains, allowing for differentiation at the strain level. To increase the number o
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13

Roy, Sushmita, Avirup Saha, Shafayet Imtiaze Khan, et al. "Identification and Differentiation of Closely Related Members of Bacillus cereus Group by Multiplex PCR." Bangladesh Journal of Microbiology 39, no. 1 (2023): 21–29. http://dx.doi.org/10.3329/bjm.v39i1.64055.

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Highly similar genetic and phenotypic traits of at least eight bacterial species forming the ‘Bacillus cereus group’ create their precise identification and differentiation quite difficult. The present study explores the applicability of a previously suggested multiplex-PCR method for the accurate identification of the candidate Bacillus species. Out of the 257 Bacillus isolates collected from soil, 44 were identified as B. thuringiensis and 39 as B. cereus by chromogenic cultural method using Bacillus agar, although few of them shared similar colony characteristics. Identification by the mult
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14

Vilas-Boas, Gislayne, Vincent Sanchis, Didier Lereclus, Manoel Victor F. Lemos, and Denis Bourguet. "Genetic Differentiation between Sympatric Populations of Bacillus cereus and Bacillus thuringiensis." Applied and Environmental Microbiology 68, no. 3 (2002): 1414–24. http://dx.doi.org/10.1128/aem.68.3.1414-1424.2002.

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ABSTRACT Little is known about genetic exchanges in natural populations of bacteria of the spore-forming Bacillus cereus group, because no population genetics studies have been performed with local sympatric populations. We isolated strains of Bacillus thuringiensis and B. cereus from small samples of soil collected at the same time from two separate geographical sites, one within the forest and the other at the edge of the forest. A total of 100 B. cereus and 98 B. thuringiensis strains were isolated and characterized by electrophoresis to determine allelic composition at nine enzymatic loci.
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15

Priest, Fergus G., Margaret Barker, Les W. J. Baillie, Edward C. Holmes, and Martin C. J. Maiden. "Population Structure and Evolution of the Bacillus cereus Group." Journal of Bacteriology 186, no. 23 (2004): 7959–70. http://dx.doi.org/10.1128/jb.186.23.7959-7970.2004.

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ABSTRACT Representative strains of the Bacillus cereus group of bacteria, including Bacillus anthracis (11 isolates), B. cereus (38 isolates), Bacillus mycoides (1 isolate), Bacillus thuringiensis (53 isolates from 17 serovars), and Bacillus weihenstephanensis (2 isolates) were assigned to 59 sequence types (STs) derived from the nucleotide sequences of seven alleles, glpF, gmk, ilvD, pta, pur, pycA, and tpi. Comparisons of the maximum likelihood (ML) tree of the concatenated sequences with individual gene trees showed more congruence than expected by chance, indicating a generally clonal stru
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16

Daffonchio, Daniele, Ameur Cherif, and Sara Borin. "Homoduplex and Heteroduplex Polymorphisms of the Amplified Ribosomal 16S-23S Internal Transcribed Spacers Describe Genetic Relationships in the “Bacillus cereus Group”." Applied and Environmental Microbiology 66, no. 12 (2000): 5460–68. http://dx.doi.org/10.1128/aem.66.12.5460-5468.2000.

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ABSTRACT Bacillus anthracis, Bacillus cereus,Bacillus mycoides, Bacillus pseudomycoides,Bacillus thuringiensis, and Bacillus weihenstephanensis are closely related in phenotype and genotype, and their genetic relationship is still open to debate. The present work uses amplified 16S-23S internal transcribed spacers (ITS) to discriminate between the strains and species and to describe the genetic relationships within the “B. cereus group,” advantage being taken of homoduplex-heteroduplex polymorphisms (HHP) resolved by polyacrylamide gel electrophoresis and silver staining. One hundred forty-one
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17

Sornchuer, Phornphan, Kritsakorn Saninjuk, and Pholawat Tingpej. "Whole genome sequence analyses of thermotolerant Bacillus sp. isolates from food." Genomics & Informatics 21, no. 3 (2023): e35. http://dx.doi.org/10.5808/gi.23030.

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The Bacillus cereus group, also known as B. cereus sensu lato (B. cereus s.l.), is composed of various Bacillus species, some of which can cause diarrheal or emetic food poisoning. Several emerging highly heat-resistant Bacillus species have been identified, these include B. thermoamylovorans, B. sporothermodurans, and B. cytotoxicus NVH 391-98. Herein, we performed whole genome analysis of two thermotolerant Bacillus sp. isolates, Bacillus sp. B48 and Bacillus sp. B140, from an omelet with acacia leaves and fried rice, respectively. Phylogenomic analysis suggested that Bacillus sp. B48 and Ba
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18

Xu, Dong, and Jean-Charles Côté. "Sequence Diversity of the Bacillus thuringiensis and B. cereus Sensu Lato Flagellin (H Antigen) Protein: Comparison with H Serotype Diversity." Applied and Environmental Microbiology 72, no. 7 (2006): 4653–62. http://dx.doi.org/10.1128/aem.00328-06.

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ABSTRACT We set out to analyze the sequence diversity of the Bacillus thuringiensis flagellin (H antigen [Hag]) protein and compare it with H serotype diversity. Some other Bacillus cereus sensu lato species and strains were added for comparison. The internal sequences of the flagellin (hag) alleles from 80 Bacillus thuringiensis strains and 16 strains from the B. cereus sensu lato group were amplified and cloned, and their nucleotide sequences were determined and translated into amino acids. The flagellin allele nucleotide sequences for 10 additional strains were retrieved from GenBank for a
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19

Chang, Yu-Hsiu, Yung-Hui Shangkuan, Hung-Chi Lin, and Hwan-Wun Liu. "PCR Assay of the groEL Gene for Detection and Differentiation of Bacillus cereus Group Cells." Applied and Environmental Microbiology 69, no. 8 (2003): 4502–10. http://dx.doi.org/10.1128/aem.69.8.4502-4510.2003.

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ABSTRACT Strains of species in the Bacillus cereus group are potentially enterotoxic. Thus, the detection of all B. cereus group strains is important. As 16S ribosomal DNA sequence analysis cannot adequately differentiate species of the B. cereus group, we explored the potential of the groEL gene as a phylogenetic marker. A phylogenetic analysis of the groEL sequences of 78 B. cereus group strains revealed that the B. cereus group strains were split into two major clusters, one including six B. mycoides and one B. pseudomycoides (cluster II) and the other including two B. mycoides and the rest
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20

Cherif, Ameur, Sara Borin, Aurora Rizzi, Hadda Ouzari, Abdellatif Boudabous, and Daniele Daffonchio. "Bacillus anthracis Diverges from Related Clades of the Bacillus cereus Group in 16S-23S Ribosomal DNA Intergenic Transcribed Spacers Containing tRNA Genes." Applied and Environmental Microbiology 69, no. 1 (2003): 33–40. http://dx.doi.org/10.1128/aem.69.1.33-40.2003.

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ABSTRACT Mung bean nuclease treatment of 16S-23S ribosomal DNA intergenic transcribed spacers (ITS) amplified from several strains of the six species of the Bacillus cereus group showed that B. anthracis Davis TE702 and B. mycoides G2 have other intermediate fragments in addition to the 220- and 550-bp homoduplex fragments typical of the B. cereus group. Long and intermediate homoduplex ITS fragments from strains Davis TE702 and G2 and from another 19 strains of the six species were sequenced. Two main types of ITS were found, either with two tRNA genes (tRNAIle and tRNAAla) or without any at
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Sorokan, Antonina, Venera Gabdrakhmanova, Zilya Kuramshina, Ramil Khairullin, and Igor Maksimov. "Plant-Associated Bacillus thuringiensis and Bacillus cereus: Inside Agents for Biocontrol and Genetic Recombination in Phytomicrobiome." Plants 12, no. 23 (2023): 4037. http://dx.doi.org/10.3390/plants12234037.

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Bacillus thuringiensis Berliner (Bt) and B. cereus sensu stricto Frankland and Frankland are closely related species of aerobic, spore-forming bacteria included in the B. cereus sensu lato group. This group is one of the most studied, but it remains also the most mysterious species of bacteria. Despite more than a century of research on the features of these ubiquitous bacteria, there are a lot of questionable issues related to their taxonomy, resistance to external influences, endophytic existence, their place in multidimensional relationships in the ecosystem, and many others. The review sum
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22

Liu, Yang, Juan Du, Qiliang Lai, et al. "Proposal of nine novel species of the Bacillus cereus group." International Journal of Systematic and Evolutionary Microbiology 67, no. 8 (2017): 2499–508. http://dx.doi.org/10.1099/ijsem.0.001821.

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23

Draganic, Veselin, Jelena Lozo, Marjan Biocanin, et al. "Genotyping of Bacillus spp. isolate collection from natural samples." Genetika 49, no. 2 (2017): 445–56. http://dx.doi.org/10.2298/gensr1702445d.

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The aim of this study was genotyping and identification of collection of 164 Bacillus spp. isolates, from samples of soil, manure, and straw gathered from across Serbia, using Pulse field gel electrophoresis (PFGE) combined with sequencing of tuf gene, one of the housekeeping genes. The PFGE analysis with NotI enzyme was used to determine phylogenetic relationships of isolates and referent strains. Four large groups of Bacillus spp. were distinguishable: cereus, subtilis, pumilus and megaterium and within enormous genetic diversity. Bacillus subtilis Marburg referent strain did not group with
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Park, Kyung-Min, Hyun-Jung Kim, Min-Sun Kim, and Minseon Koo. "Morphological Features and Cold-Response Gene Expression in Mesophilic Bacillus cereus Group and Psychrotolerant Bacillus cereus Group under Low Temperature." Microorganisms 9, no. 6 (2021): 1255. http://dx.doi.org/10.3390/microorganisms9061255.

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At low temperatures, psychrotolerant B. cereus group strains exhibit a higher growth rate than mesophilic strains do. However, the different survival responses of the psychrotolerant strain (BCG34) and the mesophilic strain (BCGT) at low temperatures are unclear. We investigated the morphological and genomic features of BCGT and BCG34 to characterize their growth strategies at low temperatures. At low temperatures, morphological changes were observed only in BCGT. These morphological changes included the elongation of rod-shaped cells, whereas the cell shape in BCG34 was unchanged at the low t
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Vater, Joachim, Le Thi Thanh Tam, Jennifer Jähne, et al. "Plant-Associated Representatives of the Bacillus cereus Group Are a Rich Source of Antimicrobial Compounds." Microorganisms 11, no. 11 (2023): 2677. http://dx.doi.org/10.3390/microorganisms11112677.

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Seventeen bacterial strains able to suppress plant pathogens have been isolated from healthy Vietnamese crop plants and taxonomically assigned as members of the Bacillus cereus group. In order to prove their potential as biocontrol agents, we perform a comprehensive analysis that included the whole-genome sequencing of selected strains and the mining for genes and gene clusters involved in the synthesis of endo- and exotoxins and secondary metabolites, such as antimicrobial peptides (AMPs). Kurstakin, thumolycin, and other AMPs were detected and characterized by different mass spectrometric me
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YANG, I.-CHEN, DANIEL YANG-CHIH SHIH, TSUI-PING HUANG, YUN-PU HUANG, JAN-YI WANG, and TZU-MING PAN. "Establishment of a Novel Multiplex PCR Assay and Detection of Toxigenic Strains of the Species in the Bacillus cereus Group." Journal of Food Protection 68, no. 10 (2005): 2123–30. http://dx.doi.org/10.4315/0362-028x-68.10.2123.

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Five different enterotoxins and one emetic toxin of Bacillus cereus have been characterized. To amplify all of the enterotoxin and emetic-specific sequences of the species in the B. cereus group, a multiplex PCR with 12 primer pairs was established. In developing the assay method, a common terminal sequence at the 3′ ends of all primers was chosen and a hot start Taq polymerase was used to overcome primer dimer formation. The assay was successfully applied to analyze the toxigenic potential of 162 food-poisoning and food-related strains. Results showed that there were 10 toxigenic patterns for
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Bhandari, Vaibhav, Nadia Z. Ahmod, Haroun N. Shah, and Radhey S. Gupta. "Molecular signatures for Bacillus species: demarcation of the Bacillus subtilis and Bacillus cereus clades in molecular terms and proposal to limit the placement of new species into the genus Bacillus." International Journal of Systematic and Evolutionary Microbiology 63, Pt_7 (2013): 2712–26. http://dx.doi.org/10.1099/ijs.0.048488-0.

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The genus Bacillus is a phylogenetically incoherent taxon with members of the group lacking a common evolutionary history. Comprising aerobic and anaerobic spore-forming bacteria, no characteristics are known that can distinguish species of this genus from other similar endospore-forming genera. With the availability of complete genomic data from over 30 different species from this group, we have constructed detailed phylogenetic trees to determine the relationships among Bacillus and other closely related taxa. Additionally, we have performed comparative genomic analysis for the determination
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Radnedge, Lyndsay, Peter G. Agron, Karen K. Hill, et al. "Genome Differences That Distinguish Bacillus anthracis from Bacillus cereus and Bacillus thuringiensis." Applied and Environmental Microbiology 69, no. 5 (2003): 2755–64. http://dx.doi.org/10.1128/aem.69.5.2755-2764.2003.

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ABSTRACT The three species of the group 1 bacilli, Bacillus anthracis, B. cereus, and B. thuringiensis, are genetically very closely related. All inhabit soil habitats but exhibit different phenotypes. B. anthracis is the causative agent of anthrax and is phylogenetically monomorphic, while B. cereus and B. thuringiensis are genetically more diverse. An amplified fragment length polymorphism analysis described here demonstrates genetic diversity among a collection of non-anthrax-causing Bacillus species, some of which show significant similarity to B. anthracis. Suppression subtractive hybridi
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CHEN, CHI H., HWIA C. DING, and TSUNG C. CHANG. "Rapid Identification of Bacillus cereus Based on the Detection of a 28.5-Kilodalton Cell Surface Antigen." Journal of Food Protection 64, no. 3 (2001): 348–54. http://dx.doi.org/10.4315/0362-028x-64.3.348.

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Conventional procedures for the identification of suspect Bacillus cereus isolated on mannitol-egg yolk-polymyxin(MYP) agar may need several days. To facilitate the identification of the bacterium, an enzyme-linked immunosorbent assay (ELISA) was developed. The assay was based on the detection of a 28.5-kDa cell surface antigen of B. cereus. Bacterial colonies grown on MYP agar or nutrient agar were suspended in phosphate-buffered saline (pH 7.2) containing 0.1% Teepol. The cell suspensions were heated at 100°C for 5 min and added to the microtiter plates coated with antibodies against the 28.
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Blanco Crivelli, Ximena, Cecilia Cundon, María Paz Bonino, Mariana Soledad Sanin, and Adriana Bentancor. "The Complex and Changing Genus Bacillus: A Diverse Bacterial Powerhouse for Many Applications." Bacteria 3, no. 3 (2024): 256–70. http://dx.doi.org/10.3390/bacteria3030017.

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For years, the Bacillus genus has encompassed a heterogeneous group of individuals whose main common trait was their ability to sporulate in the presence of oxygen. This criterion has been revised, resulting in the reclassification of several species into new genera and to a redefinition of the characteristics of the members of this taxon. Currently, the species of the genus are grouped into the Subtilis clade and the Cereus clade. The former, called Bacillus sensu stricto, initially composed of B. subtilis, B. licheniformis, B. pumilus, and B. amyloliquefaciens, has subsequently incorporated
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Leski, Tomasz A., Clayton C. Caswell, Marcin Pawlowski, et al. "Identification and Classification of bcl Genes and Proteins of Bacillus cereus Group Organisms and Their Application in Bacillus anthracis Detection and Fingerprinting." Applied and Environmental Microbiology 75, no. 22 (2009): 7163–72. http://dx.doi.org/10.1128/aem.01069-09.

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ABSTRACT The Bacillus cereus group includes three closely related species, B. anthracis, B. cereus, and B. thuringiensis, which form a highly homogeneous subdivision of the genus Bacillus. One of these species, B. anthracis, has been identified as one of the most probable bacterial biowarfare agents. Here, we evaluate the sequence and length polymorphisms of the Bacillus collagen-like protein bcl genes as a basis for B. anthracis detection and fingerprinting. Five genes, designated bclA to bclE, are present in B. anthracis strains. Examination of bclABCDE sequences identified polymorphisms in
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32

Slamti, Leyla, and Didier Lereclus. "Specificity and Polymorphism of the PlcR-PapR Quorum-Sensing System in the Bacillus cereus Group." Journal of Bacteriology 187, no. 3 (2005): 1182–87. http://dx.doi.org/10.1128/jb.187.3.1182-1187.2005.

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ABSTRACT The expression of extracellular virulence factors in various species of the Bacillus cereus group is controlled by the plcR and papR genes, which encode a transcriptional regulator and a cell-cell signaling peptide, respectively. A processed form of PapR, presumably a pentapeptide, specifically interacts with PlcR to facilitate its binding to its DNA targets. This activating mechanism is strain specific, with this specificity being determined by the first residue of the pentapeptide. We carried out in vivo complementation assays and compared the PlcR-PapR sequences of 29 strains from
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33

Bach, H. J., D. Errampalli, K. T. Leung, et al. "Specific Detection of the Gene for the Extracellular Neutral Protease of Bacillus cereus by PCR and Blot Hybridization." Applied and Environmental Microbiology 65, no. 7 (1999): 3226–28. http://dx.doi.org/10.1128/aem.65.7.3226-3228.1999.

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ABSTRACT A pair of primers and a gene probe for the amplification and detection of the Bacillus cereus neutral protease gene (NPRC) were developed. Specificity for the npr genes of theB. cereus group members B. cereus, B. mycoides, and B. thuringiensis was shown. Restriction polymorphism patterns of the PCR products confirmed the presence of the NPRC gene in all three species.
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JUERGENSMEYER, MARGARET A., BRUCE A. GINGRAS, LAWRENCE RESTAINO, and ELON W. FRAMPTON. "A Selective Chromogenic Agar That Distinguishes Bacillus anthracis from Bacillus cereus and Bacillus thuringiensis." Journal of Food Protection 69, no. 8 (2006): 2002–6. http://dx.doi.org/10.4315/0362-028x-69.8.2002.

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A selective and differential plating medium, R & F anthracis chromogenic agar (ACA), has been developed for isolating and identifying presumptive colonies of Bacillus anthracis. ACA contains the chromogenic substrate 5-bromo-4-chloro-3-indoxyl-choline phosphate that upon hydrolysis yields teal (blue green) colonies indicating the presence of phosphatidylcholinespecific phospholipase C (PC-PLC) activity. Among seven Bacillus species tested on ACA, only members of the Bacillus cereus group (B. anthracis, B. cereus, and B. thuringiensis) produced teal colonies (PC-PLC positive) having cream r
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35

From, Cecilie, Rudiger Pukall, Peter Schumann, Víctor Hormazábal, and Per Einar Granum. "Toxin-Producing Ability among Bacillus spp. Outside the Bacillus cereus Group." Applied and Environmental Microbiology 71, no. 3 (2005): 1178–83. http://dx.doi.org/10.1128/aem.71.3.1178-1183.2005.

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ABSTRACT A total of 333 Bacillus spp. isolated from foods, water, and food plants were examined for the production of possible enterotoxins and emetic toxins using a cytotoxicity assay on Vero cells, the boar spermatozoa motility assay, and a liquid chromatography-mass spectrometry method. Eight strains produced detectable toxins; six strains were cytotoxic, three strains produced putative emetic toxins (different in size from cereulide), and one strain produced both cytotoxin(s) and putative emetic toxin(s). The toxin-producing strains could be assigned to four different species, B. subtilis,
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36

Punina, N. V., V. S. Zotov, A. L. Parkhomenko, T. Y. Parkhomenko, and A. F. Topunov. "Genetic Diversity of Bacillus thuringiensis from Different Geo-Ecological Regions of Ukraine by Analyzing the 16S rRNA and gyrB Genes and by AP-PCR and saAFLP." Acta Naturae 5, no. 1 (2013): 90–100. http://dx.doi.org/10.32607/20758251-2013-5-1-90-100.

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The Bacillus cereus group consists of closely related species of bacteria and is of interest to researchers due to its importance in industry and medicine. However, it remains difficult to distinguish these bacteria at the intra- and inter-species level. Bacillus thuringiensis (Bt) is a member of the B. cereus group. In this work, we studied the inter-species structure of five entomopathogenic strains and 20 isolates of Bt, which were collected from different geo-ecological regions of Ukraine, using various methods: physiological and biochemical analyses, analysis of the nucleotide sequences o
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LECHNER, S., R. MAYR, K. P. FRANCIS, et al. "Bacillus weihenstephanensis sp. nov. is a new psychrotolerant species of the Bacillus cereus group." International Journal of Systematic Bacteriology 48, no. 4 (1998): 1373–82. http://dx.doi.org/10.1099/00207713-48-4-1373.

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38

Skorynina, Anna V., Emma G. Piligrimova, Olesya A. Kazantseva, et al. "Bacillus-infecting bacteriophage Izhevsk harbors thermostable endolysin with broad range specificity." PLOS ONE 15, no. 11 (2020): e0242657. http://dx.doi.org/10.1371/journal.pone.0242657.

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Several bacterial species belonging to the Bacillus cereus group are known to be causative agents of food poisoning and severe human diseases. Bacteriophages and their lytic enzymes called endolysins have been widely shown to provide for a supplemental or primary means of treating bacterial infections. In this work we present a new broad-host-range phage Izhevsk, which infects the members of the Bacillus cereus group. Transmission electron microscopy, genome sequencing and comparative analyses revealed that Izhevsk is a temperate phage with Siphoviridae morphology and belongs to the same genus
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Liu, Yang, Juan Du, Qiliang Lai, et al. "Corrigendum: Proposal of nine novel species of the Bacillus cereus group." International Journal of Systematic and Evolutionary Microbiology 68, no. 8 (2018): 2706. http://dx.doi.org/10.1099/ijsem.0.002902.

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40

Liu, Martha M., Shannon Coleman, Lauren Wilkinson, et al. "Unique inducible filamentous motility identified in pathogenic Bacillus cereus group species." ISME Journal 14, no. 12 (2020): 2997–3010. http://dx.doi.org/10.1038/s41396-020-0728-x.

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Abstract Active migration across semi-solid surfaces is important for bacterial success by facilitating colonization of unoccupied niches and is often associated with altered virulence and antibiotic resistance profiles. We isolated an atmospheric contaminant, subsequently identified as a new strain of Bacillus mobilis, which showed a unique, robust, rapid, and inducible filamentous surface motility. This flagella-independent migration was characterized by formation of elongated cells at the expanding edge and was induced when cells were inoculated onto lawns of metabolically inactive Campylob
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GARCÍA-ARMESTO, M. ROSARIO, and ALASTAIR D. SUTHERLAND. "Temperature characterization of psychrotrophic and mesophilic Bacillus species from milk." Journal of Dairy Research 64, no. 2 (1997): 261–70. http://dx.doi.org/10.1017/s002202999600204x.

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A total of 50 isolates of Bacillus spp. and one reference strain were investigated for their growth at 6·5°C for 10 d, 30°C for 3 d and 40°C for 2 d. The results obtained differentiated three physiological groups: one clearly psychrotrophic (able to grow at 6·5°C in 10 d, but not at 40°C in 2 d), one intermediate in psychrotrophy (it grew at both 40 and 6·5°C) and one mesophilic (capable of growth at 30 and 40°C, but not at 6·5°C). The proportion of strains in the second group was higher among isolates of B. cereus than for other Bacillus spp. However, the proportion of real mesophilic strains
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42

Leoff, Christine, Elke Saile, David Sue, et al. "Cell Wall Carbohydrate Compositions of Strains from the Bacillus cereus Group of Species Correlate with Phylogenetic Relatedness." Journal of Bacteriology 190, no. 1 (2007): 112–21. http://dx.doi.org/10.1128/jb.01292-07.

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ABSTRACT Members of the Bacillus cereus group contain cell wall carbohydrates that vary in their glycosyl compositions. Recent multilocus sequence typing (MLST) refined the relatedness of B. cereus group members by separating them into clades and lineages. Based on MLST, we selected several B. anthracis, B. cereus, and B. thuringiensis strains and compared their cell wall carbohydrates. The cell walls of different B. anthracis strains (clade 1/Anthracis) were composed of glucose (Glc), galactose (Gal), N-acetyl mannosamine (ManNAc), and N-acetylglucosamine (GlcNAc). In contrast, the cell walls
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43

Ross, Cana L., Kerrie S. Thomason та Theresa M. Koehler. "An Extracytoplasmic Function Sigma Factor Controls β-Lactamase Gene Expression in Bacillus anthracis and Other Bacillus cereus Group Species". Journal of Bacteriology 191, № 21 (2009): 6683–93. http://dx.doi.org/10.1128/jb.00691-09.

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ABSTRACT The susceptibility of most Bacillus anthracis strains to β-lactam antibiotics is intriguing considering that the closely related species Bacillus cereus and Bacillus thuringiensis typically produce β-lactamases and the B. anthracis genome harbors two β-lactamase genes, bla1 and bla2. We show that β-lactamase activity associated with B. anthracis is affected by two genes, sigP (BA2502) and rsiP (BA2503), predicted to encode an extracytoplasmic function sigma factor and an anti-sigma factor, respectively. Deletion of the sigP-rsiP locus abolished β-lactamase activity in a naturally occu
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44

Manzulli, Viviana, Miriam Cordovana, Luigina Serrecchia, et al. "Application of Fourier Transform Infrared Spectroscopy to Discriminate Two Closely Related Bacterial Species: Bacillus anthracis and Bacillus cereus Sensu Stricto." Microorganisms 12, no. 1 (2024): 183. http://dx.doi.org/10.3390/microorganisms12010183.

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Fourier transform infrared spectroscopy (FTIRS) is a diagnostic technique historically used in the microbiological field for the characterization of bacterial strains in relation to the specific composition of their lipid, protein, and polysaccharide components. For each bacterial strain, it is possible to obtain a unique absorption spectrum that represents the fingerprint obtained based on the components of the outer cell membrane. In this study, FTIRS was applied for the first time as an experimental diagnostic tool for the discrimination of two pathogenic species belonging to the Bacillus c
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45

Bamidele, Tajudeen A., Bamidele T. Odumosu, Princess T. Adenola, et al. "Anthrax toxins-producing Bacillus spp. isolated from handwashing stations during COVID-19 pandemic in Lagos, Nigeria." Journal of Infection in Developing Countries 17, no. 08 (2023): 1076–80. http://dx.doi.org/10.3855/jidc.18228.

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Introduction: The virulence binding factor, protective antigen (pag) and poly-D-γ-glutamate capsular (cap) genes, peculiar to Bacillus anthracis are located in the pXO1 and pXO2 plasmids which are transferable horizontally to related species called “cereus group”. The cereus group are usually isolated from the environmental/food samples and have been implicated in debilitating human and animal anthrax-like diseases. This study was designed to investigate the presence of the anthrax virulence genes in different Bacillus spp. isolated from handwashing facilities during COVID-19 pandemic in Lagos
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46

Helgason, Erlendur, Nicolas J. Tourasse, Roger Meisal, Dominique A. Caugant, and Anne-Brit Kolstø. "Multilocus Sequence Typing Scheme for Bacteria of the Bacillus cereus Group." Applied and Environmental Microbiology 70, no. 1 (2004): 191–201. http://dx.doi.org/10.1128/aem.70.1.191-201.2004.

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ABSTRACT In this study we developed a multilocus sequence typing (MLST) scheme for bacteria of the Bacillus cereus group. This group, which includes the species B. cereus, B. thuringiensis, B. weihenstephanensis, and B. anthracis, is known to be genetically very diverse. It is also very important because it comprises pathogenic organisms as well as bacteria with industrial applications. The MLST system was established by using 77 strains having various origins, including humans, animals, food, and soil. A total of 67 of these strains had been analyzed previously by multilocus enzyme electropho
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47

DelVecchio, Vito G., Joseph P. Connolly, Timothy G. Alefantis, et al. "Proteomic Profiling and Identification of Immunodominant Spore Antigens of Bacillus anthracis, Bacillus cereus, and Bacillus thuringiensis." Applied and Environmental Microbiology 72, no. 9 (2006): 6355–63. http://dx.doi.org/10.1128/aem.00455-06.

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ABSTRACT Differentially expressed and immunogenic spore proteins of the Bacillus cereus group of bacteria, which includes Bacillus anthracis, Bacillus cereus, and Bacillus thuringiensis, were identified. Comparative proteomic profiling of their spore proteins distinguished the three species from each other as well as the virulent from the avirulent strains. A total of 458 proteins encoded by 232 open reading frames were identified by matrix-assisted laser desorption ionization-time-of-flight mass spectrometry analysis for all the species. A number of highly expressed proteins, including elonga
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48

Kabir, M. Shahjahan, Ying-Hsin Hsieh, Steven Simpson, Khalil Kerdahi, and Irshad M. Sulaiman. "Evaluation of Two Standard and Two Chromogenic Selective Media for Optimal Growth and Enumeration of Isolates of 16 Unique Bacillus Species." Journal of Food Protection 80, no. 6 (2017): 952–62. http://dx.doi.org/10.4315/0362-028x.jfp-16-441.

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ABSTRACTThe genus Bacillus is a group of gram-positive endospore-forming bacteria that can cause food poisoning and diarrheal illness in humans. A wide range of food products have been linked to foodborne outbreaks associated with these opportunistic pathogens. The U.S. Food and Drug Administration recommends (in their Bacteriological Analytical Manual) the use of Bacara or mannitol egg yolk polymyxin (MYP) agar plates and the most-probable-number (MPN) method for enumeration and confirmation of Bacillus cereus and related species isolated from foods, sporadic cases, outbreaks, and routine env
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49

Prüß, Birgit M., Richard Dietrich, Birgit Nibler, Erwin Märtlbauer, and Siegfried Scherer. "The Hemolytic Enterotoxin HBL Is Broadly Distributed among Species of the Bacillus cereusGroup." Applied and Environmental Microbiology 65, no. 12 (1999): 5436–42. http://dx.doi.org/10.1128/aem.65.12.5436-5442.1999.

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ABSTRACT The prevalence of the hemolytic enterotoxin complex HBL was determined in all species of the Bacillus cereus group with the exception of Bacillus anthracis. hblA, encoding the binding subunit B, was detected by PCR and Southern analysis and was confirmed by partial sequencing of 18 strains. The sequences formed two clusters, one including B. cereus and Bacillus thuringiensis strains and the other one consisting ofBacillus mycoides, Bacillus pseudomycoides, and Bacillus weihenstephanensisstrains. From eight B. thuringiensis strains, the enterotoxin gene hblA could be amplified. Seven o
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50

Smirnova, T. A., N. B. Polyakov, D. S. Karpov, et al. "Identification of Clinical Isolates of <i>Bacillus cereus</i> Group and Their Characterization by Mass Spectrometry and Electron Microscopy." Молекулярная биология 57, no. 4 (2023): 609–22. http://dx.doi.org/10.31857/s0026898423040201.

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Bacillus cereus is a spore-forming bacterium found in the environment mainly in soil. Bacillus spores are known to be extremely resistant not only to environmental factors, but also to various sanitation regimes. This leads to spore contamination of toxin-producing strains in hospital and food equipment and, therefore, poses a great threat to human health. Two clinical isolates identified as B. cereus and B. cytotoxicus were investigated in the present work. It was shown that their calcium ion content was significantly lower than that of the reference strains. According to electron microscopy,
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