Open AccessInhibition of phototrophically growing Chromatium vinosum D by glycine
Author(s) -
Kämpf Charlotte,
Kim YoungAe,
Cobb Andrea D.,
Knaff David B.
Publication year - 1988
Publication title -
fems microbiology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.899
H-Index - 151
eISSN - 1574-6968
pISSN - 0378-1097
DOI - 10.1111/j.1574-6968.1988.tb02997.x
Subject(s) - glycine , biochemistry , valine , alanine , amino acid , glycine cleavage system , serine , biology , leucine , isoleucine , chemistry , enzyme
The effect of glycine on phototrophically growing Chromatium vinosum D was investigated in the presence and absence of various amino acids. Inhibition of autotrophic cells was more pronounced than that of heterotrophic cells. Cells of growth‐inhibited cultures were misshaped, showing vacuolation and partial protoplast formation. Cells exposed to glycine in the presence of equimolar amounts of either d ‐ or l ‐alanine did not show any inhibition of growth. Neither serine, leucine, valine, isoleucine nor α‐aminoisobutyric acid could counteract the inhibition of growth by glycine. The inhibitory effect of glycine on growth is thus likely to be caused by a competition between glycine and alanine during cell wall synthesis. The possible functions of glycine transport system(s) in the natural habitat of C. vinosum are discussed.