The effect of chlorine on the germination, outgrowth, colony formation and structure of spores of Clostridium bifermentans, Bacillus subtilis var. niger and Bacillus cereus was examined. Chlorine decreased heat resistance and slowed or prevented germination and swelling, but spores that did swell were usualy able to elongate to form vegetative cells. Chlorine removed protein from spores, apparently from the coat, and allowed lysozyme to initiate germination. Treatment with other agents that remove spore-coat protein increased the lethal effect of chlorine by as much as 4000-fold, suggesting that coat protein protects spores against chlorine.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1099/00221287-89-2-337 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
sp. nov., a crude oil aggregation-forming anaerobic bacterium isolated from marine sediment.
Int J Syst Evol Microbiol
January 2025
Graduate School of Marine Science and Technology, Tokyo University of Marine Science and Technology, 4-5-7 Konan, Minato, Tokyo 108-8477, Japan.
A crude oil aggregation-forming, strictly anaerobic, Gram-stain-positive, spore-forming, rod-shaped, motile and mesophilic bacterium, named strain SH18-2, was isolated from marine sediment near Sado Island in the Sea of Japan. The temperature, salinity and pH ranges of this strain for the growth were 15-40 °C (optimum 35 °C), 0.5-6.
View Article and Find Full Text PDFTargeting Spore-Forming Bacteria: A Review on the Antimicrobial Potential of Selenium Nanoparticles.
Foods
December 2024
College of Food Science and Technology, Shanghai Ocean University, 999# Hu Cheng Huan Road, Shanghai 201306, China.
Spore-forming bacterial species pose a serious threat to food plants and healthcare facilities that use high-temperature processing and sterilizing techniques to sanitize medical equipment and food items. These severe processing conditions trigger sporulation, which is the process by which spore-forming bacteria, such as those of the and species, begin to produce spores, which are extremely resilient entities capable of withstanding adverse environmental circumstances. Additionally, these spores are resistant to a wide range of disinfectants and antibacterial therapies, such as hydrolytic enzymes, radiation, chemicals, and antibiotics.
View Article and Find Full Text PDFModeling inactivation of non-proteolytic type B spores in a plant-based fish alternative.
Front Microbiol
December 2024
Oniris VetAgroBio, INRAE, SECALIM, Nantes, France.
Our study aims to assess the thermal inactivation of non-proteolytic type B spores in a plant-based fish and to evaluate the potential of alternative heat treatments at temperatures below the safe harbor guidelines established for vacuum-packed chilled products of extended durability. First, the heat resistance of the spore suspension was determined using capillary tubes in potassium phosphate buffer at 80°C. The D value was estimated to be 0.
View Article and Find Full Text PDFGas gangrene due to Clostridium haemolyticum in a cat with aortic thromboembolism treated using clopidogrel and rivaroxaban.
Aust Vet J
December 2024
Centre for Veterinary Education, Sydney School of Veterinary Science, The University of Sydney, Sydney, Australia.
A 12-year-old Bengal cat with unclassified cardiomyopathy presented for signs consistent with aortic thromboembolism (ATE). It was treated with clopidogrel and rivaroxaban as antithrombotic therapy, combined with narcotic analgesia and frusemide. After initially making a clinical improvement, the cat's condition suddenly deteriorated, with a presumptive diagnosis of clostridial myonecrosis.
View Article and Find Full Text PDFThe ability of clostridium novyi-NT spores to induce apoptosis via the mitochondrial pathway in mice with HPV-positive cervical cancer tumors derived from the TC-1 cell line.
BMC Complement Med Ther
December 2024
Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran.
Background: A precise observation is that the cervix's solid tumors possess hypoxic regions where the oxygen concentration drops below 1.5%. Hypoxia negatively impacts the host's immune system and significantly diminishes the effectiveness of several treatments, including radiotherapy and chemotherapy.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!