Query: NC_017246:528825 Brucella melitensis M5-90 chromosome chromosome I, complete Lineage: Brucella melitensis; Brucella; Brucellaceae; Rhizobiales; Proteobacteria; Bacteria General Information: They are highly infectious, and can be spread through contact with infected animal products or through the air, making them a potential bioterrorism agent. Once the organism has entered the body, it can become intracellular, and enter the blood and lymphatic regions, multiplying inside phagocytes before eventually causing bacteremia (spread of bacteria through the blood). Virulence may depend on a type IV secretion system which may promote intracellular growth by secreting important effector molecules. This organism is a facultative intracellular bacteria that causes abortion in wild and domestic animals, usually goats or sheep, and undulant fever in humans. Brucellosis is a major health problem in the Mediterranean region and parts of Asia, Africa, and Latin America, where it causes severe economic losses. The disease is transmitted to humans by nonpasteurized milk and milk products or by direct contact with infected animals or carcasses.
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General Information: Bacteria belonging to the Rhodobacter group are metabolically versatile as they are able to grow using photosynthesis, chemosynthesis, and usually can grow under both anaerobic and aerobic conditions. The most extensively studied bacteria with regards to its photosynthetic capabilities which includes the structure, function and regulation of its photosynthetic membranes, its mechanisms of CO2 and nitrogen fixation, cytochrome diversity and its electron transport systems. It can grow aerobically and anaerobically in the light and anaerobically in the dark. It produces an intracytoplasmic membrane system consisting of membrane invaginations where the light harvesting complexes (LH1 and LH2) and the reaction center are synthesized. Furthermore, it has the ability to detoxify metal oxides and oxyanions and hence has a role in bioremediation.