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Fig. 4 | BMC Genomics

Fig. 4

From: Combined genomic and structural analyses of a cultured magnetotactic bacterium reveals its niche adaptation to a dynamic environment

Fig. 4

Schematic overview of Mf. australis strain IT-1 showing its main metabolic pathways and structural features. Schematic overview of Mf. australis strain IT-1 showing its main metabolic pathways and structural features. Cells are bilophotrichous with both flagella bundles in the concave face of the cell. Forty-two genes encode methyl-accepting chemoreceptors usually associated to the flagellar apparatus (purple). Strain IT-1 is chemolitoautotroph using the reverse tricarboxylic acids cycle (rTCA) or chemoorganoheterotroph, capable to grow using small organic molecules such as acetate and citrate. Cells are capable of nitrogen fixation, but probably do not to use nitrate as final electron acceptor (green). Genes for sulfate uptake and reduction were found as well as proteins responsible for sulfur compounds oxidation (yellow) and a gene for a sulfide:quinone reductase (S:Q R), responsible for the synthesis of sulfur globules (S). Genes encoding proteins for the synthesis of polyphosphate granules (P) are present as well as phosphate and phosphanate transporters (orange). High and low affinity iron transporters are encoded (pink) and there are copies of these genes located closely to magnetosome genes, responsible for the synthesis and organization of the chain of magnetite (Fe3O4) cubo-octahedral magnetosomes. Other cell transporters are also depicted (blue)

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