title: Spontaneous development of L forms of streptococci requiring secretions of other bacteria or sulphydryl compounds for normal growth.
mesh_terms: D001419:Bacteria; D007740:L Forms; D013291:Streptococcus / Q000378:metabolism*; D013438:Sulfhydryl Compounds / Q000378:metabolism*
chemical_list: D013438:Sulfhydryl Compounds
keywords: STREPTOCOCCUS/metabolism; SULFHYDRYL COMPOUNDS/metabolism