In an attempt to obtain biological control agents for controlling bacterial spot of cucumber, over 250 bacterial strains were isolated from agricultural soil samples, collected from different localities in Giza Governorate (Egypt) and screened for in vitro antibiosis towards Xanthomonas campestris. Only 2 strains showed antagonistic activity. They and their culture filtrates restricted the growth of a number of G- and G(+)-indicator bacteria. On Chrome Azurol S agar, both strains exhibited a marked siderophore production. Biolog plates identified these strains as Rahnella aquatilis. Their characteristics were studied and compared with literature data on R. aquatilis. This antagonistic bacterium has not been previously isolated in Egypt.

Botany and Microbiology Department Faculty of Science Helwan University Ain Helwan Cairo Egypt

Zobrazit více v PubMed

Microbiol Rev. 1992 Dec;56(4):662-76 PubMed

Appl Environ Microbiol. 2001 Feb;67(2):654-64 PubMed

Anal Biochem. 1987 Jan;160(1):47-56 PubMed

Folia Microbiol (Praha). 2002;47(2):137-43 PubMed

Folia Microbiol (Praha). 2002;47(4):359-63 PubMed

Folia Microbiol (Praha). 2000;45(6):539-43 PubMed

Int J Food Microbiol. 1991 May;13(1):63-8 PubMed

Int J Food Microbiol. 1998 Jan 6;39(1-2):11-7 PubMed

Can J Microbiol. 1972 Jun;18(6):705-13 PubMed

Annu Rev Microbiol. 2002;56:117-37 PubMed

J Clin Microbiol. 1985 Jan;21(1):46-76 PubMed

Ann Microbiol (Paris). 1976 Oct;127B(3):317-35 PubMed

Appl Environ Microbiol. 1999 May;65(5):1936-40 PubMed

J Biosci Bioeng. 1999;87(2):180-3 PubMed

J Bacteriol. 1992 Feb;174(4):1378-87 PubMed

Ann Biol Clin (Paris). 1989;47(5):231-6 PubMed

Appl Environ Microbiol. 2002 Jun;68(6):2745-53 PubMed

J Clin Microbiol. 1999 Dec;37(12):4161-2 PubMed

Appl Environ Microbiol. 1999 Feb;65(2):862-4 PubMed

Annu Rev Microbiol. 1967;21:257-84 PubMed

Ann Microbiol (Paris). 1979 Feb-Mar;130(2):163-77 PubMed

Appl Environ Microbiol. 1991 Dec;57(12):3613-5 PubMed

Folia Microbiol (Praha). 2001;46(1):49-52 PubMed

Folia Microbiol (Praha). 2001;46(1):61-2 PubMed

Appl Environ Microbiol. 2000 Feb;66(2):487-92 PubMed

Soil microbial counts and identification of culturable bacteria in an extreme by arid zone