منابع مشابه
Growth rates of Salmonella colonies.
Most species of Salmonella grow rapidly and luxuriantly on ordinary agar media. In contrast, Salmonella pullorum and a few other species or types such as Salmonella abortus-ovis, Salmonella sendai, and Salmonella typhi-suis develop slowly and sparsely (Kauffmann, 1954). The reasons for the poor growth of these strains are not known. Also, their sparse growth makes isolation more difficult. In t...
متن کاملEffect of concentrations of limiting substrates on the linear growth rates of Streptomyces levoris colonies.
The relationship between linear growth rates of S. levoris zone-forming colonies and concentrations of different limiting energy and carbon sources in the nutrient medium has been studied. A formula has been derived satisfactorily describing this relationship. The utilization of the substrates in the source of vegetative and reproductive processes as well as possible mechanisms controlling the ...
متن کاملThe Control of Salmonella Infections in Colonies of Mice.
The need for a practical method of control of Salmonella infections in colonies of laboratory mice has long been emphasized both by research workers and by commercial breeders of mice. Although various methods have been suggested from time to time, such proposals have not resulted in any consistent long-term practical control of paratyphoid infection. Some of the proposed procedures of paratyph...
متن کاملGrowth of B-lymphocyte colonies in vitro
In semisolid agar cultures containing mercaptoethanol, cells from the spleen, lymph nodes, marrow, peritoneal cavity, thoracic duct, and blood of normal mice generated clusters and colonies of up to 3,000 cells. Colony numbers and growth were markedly enhanced by the addition of sheep red cells. The frequency of colony-forming cells in the spleen or lymph nodes was 0.5-2.0%, and cluster forming...
متن کاملGrowth of bacteria in 3-d colonies
The dynamics of growth of bacterial populations has been extensively studied for planktonic cells in well-agitated liquid culture, in which all cells have equal access to nutrients. In the real world, bacteria are more likely to live in physically structured habitats as colonies, within which individual cells vary in their access to nutrients. The dynamics of bacterial growth in such conditions...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Bacteriology
سال: 1957
ISSN: 0021-9193,1098-5530
DOI: 10.1128/jb.74.2.200-206.1957