Antagonism between Virulent Shigella and Avirulent Shigella
نویسندگان
چکیده
منابع مشابه
Molecular characterization of plasmids from virulent and spontaneously occurring avirulent colonial variants of Shigella flexneri.
Spontaneous transition of Shigella flexneri from T- to O-type colonies with concomitant loss of virulence dose not appear to be accompanied by a change in any of the four plasmic species found in the virulent parent.
متن کاملHybridization between Escherichia coli and Shigella.
Genetic recombination by mating has been demonstrated among a variety of strains classified as Escherichia coli (Lederberg and Tatum, 1946; Cavalli et al., 1953). The possibility of genetic transfers among bacteria currently classified in different species or genera has been proved by transformation and transduction experiments (Lederberg and Edwards, 1953; Schaeffer and Ritz, 1955; Lennox, 195...
متن کاملPolymerase chain reaction method for the rapid detection of virulent Shigella spp.
Bacillary dysentery, or shigellosis, is a disease of humans in which the colonic epithelium is invaded by bacteria and subjected to inflammatory destruction. The aim of this study was to develop a polymerase chain reaction(PCR) test for detection of virulent Shigella spp.. For this purpose, the primers were designed to amplify a 526-bp internal region of the Shigella spp. icsA gene, which encod...
متن کاملShigella Enterotoxin 1: An Enterotoxin of Shigella
Culture filtrates of Shigellaflexneri 2a strain M4243 grown in iron-depleted medium, caused significant fluid accumulation in rabbit ileal loops. Also, when tested in Ussing chambers, a greater rise in potential difference and short circuit current was seen with such filtrates compared with the medium control. Analogous filtrates from two M4243 derivatives lacking the 140-MD invasiveness plasmi...
متن کاملAntigenic relationship between Hafnia and Shigella flexneri.
The antigenic relationships among members of the different groups of Enterobacteriaceae have been widely studied. The most extensive and systematic research was carried out by Kampelmacher (Antonie van Leeuwenhoek, J. Microbiol. Serol. 25:289. 1959). Studies on crossreactions between members of the genera Hafnia and Shigella, however, have not been published. From the feces of a young boy, pres...
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 the Japanese Association for Infectious Diseases
سال: 1983
ISSN: 1884-569X,0387-5911
DOI: 10.11150/kansenshogakuzasshi1970.57.17