title: The effect of pH and temperature on haemolysin production by Listeria species.
abstract: The ability of three strains of Listeria monocytogenes NCTC 7973, serovar 1/2a, NCTC 5124m serovar 4a, C-274 serovar 4b and one strain of L. seeligeri (SLCC 3954) to grow in TPB (Tryptose phosphate agar) at pH values between 5-9 and produce haemolysin has been investigated at two incubation temperatures. The minimum and maximum pH values at which haemolysin was detected were 5 and 9 respectively, at 20 degrees and 32 degrees C.
authors.affiliation: Department of Microbiology, University of Karachi, Pakistan.
authors.forename: S A
authors.initials: SA
authors.lastname: Khan
authors.forename: S M
authors.initials: SM
authors.lastname: Khalid
authors.forename: R
authors.initials: R
authors.lastname: Siddiqui
mesh_terms: D006460:Hemolysin Proteins / Q000096:biosynthesis*; D006863:Hydrogen-Ion Concentration; D008089:Listeria monocytogenes / Q000378:metabolism*; D013696:Temperature
chemical_list: D006460:Hemolysin Proteins