Query: NC_012796:2090000 Desulfovibrio magneticus RS-1, complete genome
Lineage: Desulfovibrio magneticus; Desulfovibrio; Desulfovibrionaceae; Desulfovibrionales; Proteobacteria; Bacteria
General Information: Isolated from freshwater sulfide-rich mud of a waterway near Kameno river, Wakayama, in Japan. This organism is a sulfate-reducing delta proteobacterium which synthesizes intracellular magnetite particles. Desulfovibrio magneticus produces irregular, membrane-bound magnetite particles, unlike other magnetite-producing bacteria which contain crystalline magnetite in the cytoplasm. Desulfovibrio magneticus does not migrate along a magnetic field but swims randomly.
Subject: NC_010337:2793667 Heliobacterium modesticaldum Ice1, complete genome
Lineage: Heliobacterium modesticaldum; Heliobacterium; Heliobacteriaceae; Clostridiales; Firmicutes; Bacteria
General Information: Heliobacterium modesticaldum strain Ice1, the type strain of this species, was isolated from Icelandic hot spring volcanic soils. It grows optimally above 50 degrees Celsius, grows best photoheterotrophically, but can grow in the dark chemotrophically on pyruvate. Phototrophic thermophile. This organism is an anoxygenic phototroph isolated from hot spring microbial mats and volcanic soil. Cell wall structure, the ability to form endospores, and 16S ribosomal RNA analysis place Heliobacterium modesticaldum in a family of phototrophic bacteria related to the Clostridia. Heliobacterium modesticaldum is able to fix nitrogen and may contribute significantly to the nitrogen availability in microbial mats.