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mamO and mamE genes are essential for magnetosome crystal biomineralization in Magnetospirillum gryphiswaldense MSR-1

2010; Elsevier BV; Volume: 161; Issue: 8 Linguagem: Inglês

10.1016/j.resmic.2010.07.002

1769-7123

Wei Yang, Ruiguo Li, Tao Peng, Yang Zhang, Wei Jiang, Ying Li, Jilun Li,

Geology and Paleoclimatology Research

Four non-magnetic mutants of Magnetospirillum gryphiswaldense strain MSR-1 were isolated by transposon mutagenesis and found to contain interruption of either the mamO or mamE gene within the mamAB operon. Studies indicated that mamO and mamE genes are essential for magnetosome crystal biomineralization in MSR-1. This is the first report of a single gene (mamO or mamE) whose mutation affects crystal biomineralization in MSR-1.