Effect of methionine and cysteine deprivation on growth of different natural isolates of Lactobacillus spp. in chemically defined media

• Published in: Archives of biological sciences Vol. 60; no. 4; pp. 509 - 517
• Main Authors: Lozo, J, Begovic, J, Jovcic, B, Golic, N, Topisirovic, Lj., Institute of Molecular Genetics and Genetic Engineering, Belgrade (Serbia)
• Format: Journal Article
• Language: English
• Published: University of Belgrade, University of Novi Sad 2008
• Subjects: Chemically defined medium; CISTEINA; CYSTEINE; http://www.fao.org/aos/agrovoc#c_2084; http://www.fao.org/aos/agrovoc#c_4144; http://www.fao.org/aos/agrovoc#c_4787; lactobacilli; LACTOBACILLUS; METHIONINE; METIONINA
• ISSN: 0354-4664; 1821-4339
• DOI: 10.2298/abs0804509l

The purpose of this study was to determine the ability of natural isolates of lactobacilli from different ecological niches to grown in a chemically defined medium in the presence or absence of sulphur-containing amino acids, methionine and /or cysteine. The obtained results indicated that cysteine is essential for growth of L. paracasei subsp. paracasei BGHN14 and BGSJ2-8, while the methionine is essential for isolates BGHN40, BGCG31, and BGHV54T of the species L. plantarum. Methionine is also essential for growth of L. rhamnosus BGHV58T. Other analyzed strains, such as L. plantarum BGSJ3-18, BGZB19, BGHV52Ta, and BGHV43T, require the presence of both amino acids for their growth.