title: Extrachromosomal nature of hydrogen sulfide production in Escherichia coli.
abstract: Two strains of Escherichia coli which produce hydrogen sulfide appear to have acquired this ability via transfer of genetic material from another genus.
mesh_terms: D002499:Centrifugation, Density Gradient; D002586:Cesium; D002712:Chlorides; D002845:Chromatography; D003470:Culture Media; D003596:Cytosine / Q000032:analysis; D004269:DNA, Bacterial / Q000032:analysis; D003720:Densitometry; D004926:Escherichia coli / Q000032:analysis / Q000145:classification / Q000254:growth & development / Q000378:metabolism*; D005827:Genetics, Microbial; D006147:Guanine / Q000032:analysis; D006859:Hydrogen / Q000096:biosynthesis*; D011511:Proteus; D013440:Sulfides / Q000096:biosynthesis*
chemical_list: D002712:Chlorides; D003470:Culture Media; D004269:DNA, Bacterial; D013440:Sulfides; D002586:Cesium; D006147:Guanine; D006859:Hydrogen; D003596:Cytosine