Induction of morphological aberrations in Rhodospirillum rubrum by D-amino acids.

Studies on several gram-negative bacteria grown on certain individual amino acids, and indicate that the cell envelopes of such organisms are described in the present communication. contain a relatively large number of amino acids (Salton, 1956). It might reasonably be expected MATERIALS AND METHODS that interference with the synthesis, or limitation Cultures of R. rubrum (strain Si) were grown of the availability, of the normal complement of under essentially anaerobic conditions in a lightamino acids required for fabrication of the, cell cabinet at approximately 30 C. The basal medium wall mosaic could result in aberrant morphologicontained only biotin and the mineral salts used