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Trace Elements and Reproduction of Leptospirae
Author(s) -
Burger G.,
Fuchs G. H. P.
Publication year - 1970
Publication title -
journal of applied bacteriology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.889
H-Index - 156
eISSN - 1365-2672
pISSN - 0021-8847
DOI - 10.1111/j.1365-2672.1970.tb02262.x
Subject(s) - leptospira , reproduction , chemistry , biology , microbiology and biotechnology , food science , ecology , serotype
Summary. Low concentrations of Zn and Co salts in the medium stimulated growth of several strains of 2 species of Leptospira , but high concentrations inhibited growth. Low concentrations of Cu increased the growth rate of saprophytic leptospirae but did not affect parasitic strains; high concentrations inhibited all strains. In a Zn‐containing medium, the addition of increasing amounts of Cd was increasingly inhibitory to both species. The addition of 0·2 × 10 −6 g of Zn(NO 3 ) 2 . 6H 2 O and 10 −9 g of CoSO 4 .7H 2 O/ml of Korthof's medium is recommended. Saprophytic leptospirae grow better with 10 −6 g of CuSO 4 .5H 2 O/ml of medium.