RT Journal Article SR Electronic(1) A1 Yamaguchi, S. A1 IINO, T. A1 Kuroiwa, T.YR 1972 T1 Possession of Flagellar Hooks by Some Non-flagellate Mutants of Salmonella abortusequi JF Microbiology, VO 70 IS 2 SP 299 OP 303 DO https://doi.org/10.1099/00221287-70-2-299 PB Microbiology Society, SN 1465-2080, AB SUMMARY The possession of flagellar hooks by non-flagellate mutants derived from phase 1 stable strains of Salmonella abortusequi was determined by electron microscopic examination of material detached from these bacteria by mechanical means. Hooks were found in all the preparations from H1 mutants but none in those from fla mutants representative of fourteen different complementation groups. The hooks from H1 mutants were morphologically indistinguishable from those of wild-type. These results show that all the fla genes are involved in hook formation and that the flagellin structural gene H1 is not., UL https://www.microbiologyresearch.org/content/journal/micro/10.1099/00221287-70-2-299