%0 Journal Article %A Postgate, J. R. %T The Examination of Sulphur Auxotrophs: A Warning %D 1963 %J Microbiology, %V 30 %N 3 %P 481-484 %@ 1465-2080 %R https://doi.org/10.1099/00221287-30-3-481 %I Microbiology Society, %X SUMMARY: The chemical instability and reactivity of certain biologically important sulphur derivatives are recalled and their relevance to the study of sulphur auxotrophs is pointed out. %U https://www.microbiologyresearch.org/content/journal/micro/10.1099/00221287-30-3-481