Mutations Affecting the Nutritional Requirements of Aerobacter aerogenes Induced by Irradiation of Dried Cells Devi, P. and Pontecorvo, G. and Higginbottom, C.,, 5, 781-787 (1951), doi = https://doi.org/10.1099/00221287-5-4-781, publicationName = Microbiology Society, issn = 1350-0872, abstract= SUMMARY: By irradiating with X-rays Acrobacter aerogenes (AlOC) in the dry state, mutants have been obtained differing from the parent strain in specific growth-factor requirements. About half of the mutants differ from the parent, not in having an absolute requirement for a nutrilite, but in having a longer lag-phase without it., language=, type=