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Three recently acknowledged Escherichia species strikingly differ in the incidence of bacteriocinogenic and lysogenic strains
Author(s) -
Šmarda Jan,
Šmajs David,
Lhotová Hana
Publication year - 2002
Publication title -
journal of basic microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.58
H-Index - 54
eISSN - 1521-4028
pISSN - 0233-111X
DOI - 10.1002/1521-4028(200212)42:6<429::aid-jobm429>3.0.co;2-x
Subject(s) - lysogenic cycle , microbiology and biotechnology , colicin , biology , escherichia coli , bacteriocin , bacteria , bacteriophage , genetics , gene , antimicrobial
The incidence of bacteriocinogeny and lysogeny was followed in bacteria of 3 recently acknowledged species of the genus Escherichia : E. hermanii , E. vulneris and E. fergusonii . Almost all of the strains examined were of human origin. In 30 strains of E. hermanii no one was found bacteriocinogenic while 57% were lysogenic, in 30 strains of E. vulneris none was found to be bacteriocinogenic and only 10% were lysogenic, and in 50 strains E. fergusonii 12% were bacteriocinogenic and 40% lysogenic. From the 6 bacteriocinogenic strains of E. fergusonii , 3 were producers of colicin E1, 2 of colicin Ib and 1 of colicin Ia. In addition, 3 E. fergusonii strains produced aerobactin.