Query: NC_015666:2721350 Halopiger xanaduensis SH-6 chromosome, complete genome Lineage: Halopiger xanaduensis; Halopiger; Halobacteriaceae; Halobacteriales; Euryarchaeota; Archaea General Information: Country: China; Environment: Soil, Salinewater; Isolation: Sediment of saline Lake Shangmatala in Inner Mongolia; Temp: Mesophile; Temp: 37C. Halopiger xanaduensis was first isolated from a saline lake in China. This organism requires a minimum of 15% NaCl for growth with optimum growth occurring at concentrations of 25%.
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General Information: Gram-negative soil bacterium. This is the most widely studied species in the genus. Strains of Agrobacterium are classified in three biovars based on their utilisation of different carbohydrates and other biochemical tests. The differences between biovars are determined by genes on the single circle of chromosomal DNA. Biovar differences are not particularly relevant to the pathogenicity of A. tumefaciens, except in one respect: biovar 3 is found worldwide as the pathogen of gravevines. This species causes crown gall disease of a wide range of dicotyledonous (broad-leaved) plants, especially members of the rose family such as apple, pear, peach, cherry, almond, raspberry and roses. Because of the way that it infects other organisms, this bacterium has been used as a tool in plant breeding. Any desired genes, such as insecticidal toxin genes or herbicide-resistance genes, can be engineered into the bacterial DNA, and then inserted into the plant genome. This process shortens the conventional plant breeding process, and allows entirely new (non-plant) genes to be engineered into crops.