Reevaluation of bacitracin as a spore coat component.
نویسندگان
چکیده
Analysis of hydrolysates of highly purified spore coats revealed only small quantities of ornithine, a component of bacitracin. We conclude that the peptide, bacitracin, is not a significant component of spore coats.
منابع مشابه
Amino acid composition of cell wall and spore coat of Bacillus subtilis in relation to mycobacillin production.
Most of the bacteria producing peptide antibiotics are aerobic sporeformers. The relation between the two processes (spore formation and peptide production) has been suggested by several investigators (R. W. Bernlohr and G. D. Novelli, Nature 184:1256, 1959; Balassa et al., Compt. Rend. 257:986, 1963). D-Amino acids, which are characteristic constituents of the peptide antibiotics, have been sh...
متن کاملEmerging Applications of Bacterial Spores in Nanobiotechnology
Bacterial spores are robust and dormant life forms with formidable resistance properties, in part, attributable to the multiple layers of protein that encase the spore in a protective and flexible shield. The coat has a number of features pertinent to the emerging field of nanobiotechnology including self-assembling protomers and the capacity for engineering and delivery of foreign molecules. T...
متن کاملConversion from Platelet-Rich Plasma Platelet Production to Buffy Coat Platelet Component Production: Benefits and Limitations
Blood transfusion centers are under considerable pressure to produce platelet concentrates with high quality and safety due to the short shelf life of 3-5 days as well as possible bacterial and viral contaminations. For a variety of reasons, many Europeans have changed their methods of component production from whole blood using the North American standard platelet-rich plasma method to the buf...
متن کاملIn vitro high-resolution structural dynamics of single germinating bacterial spores.
Although significant progress has been achieved in understanding the genetic and biochemical bases of the spore germination process, the structural basis for breaking the dormant spore state remains poorly understood. We have used atomic force microscopy (AFM) to probe the high-resolution structural dynamics of single Bacillus atrophaeus spores germinating under native conditions. Here, we show...
متن کاملBacillus subtilis spore coat.
In response to starvation, bacilli and clostridia undergo a specialized program of development that results in the production of a highly resistant dormant cell type known as the spore. A proteinacious shell, called the coat, encases the spore and plays a major role in spore survival. The coat is composed of over 25 polypeptide species, organized into several morphologically distinct layers. Th...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Journal of bacteriology
دوره 102 1 شماره
صفحات -
تاریخ انتشار 1970