Query: NC_004578:1153738 Pseudomonas syringae pv. tomato str. DC3000, complete genome Lineage: Pseudomonas syringae group genomosp. 3; Pseudomonas; Pseudomonadaceae; Pseudomonadales; Proteobacteria; Bacteria General Information: While pathogenic on Arabidopsis thaliana, it is mainly characterized as causing bacterial speck disease on tomato plants, which has a large economic impact. This organism is mainly endophytic and is a poor colonizes of plant surfaces but can multiply within the host. Bacteria belonging to the Pseudomonas group are common inhabitants of soil and water and can also be found on the surfaces of plants and animals. Pseudomonas bacteria are found in nature in a biofilm or in planktonic form. Pseudomonas bacteria are renowned for their metabolic versatility as they can grow under a variety of growth conditions and do not need any organic growth factors. This species includes many plant pathogens of important crops, which makes it a model organism in plant pathology. Its natural environment is on the surface of plant leaves and it can withstand various stressful conditions, like rain, wind, UV radiation and drought. It can colonize plants in a non-pathogenic state and can rapidly take advantage of changing environmental conditions to induce disease in susceptible plants by shifting gene expression patterns.
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General Information: Desulfovibrio desulfuricans subsp. desulfuricans str. ATCC 27774 was isolated from the rumen of a sheep. D. desulfuricans reduces sulfate to sulfide found in soil, freshwater, saltwater and the intestinal tract of animals. This organism grows anaerobically and utilizes a wide variety of electron acceptors, including sulfate, sulfur, nitrate, and nitrite, as well as others. The nitrate reduction pathway is not expressed while sulfate is available. Alternatively, the sulfate reduction pathway is constitutively expressed when the cells are growing with nitrate reduction. A number of toxic metals are reduced, including uranium (VI), chromium (VI) and iron (III), making this organism of interest as bioremediator. Metal corrosion, a problem that is partly the result of the collective activity of this bacterium, results in billions of dollars in losses each year to the petroleum industry. This organism is responsible for the production of poisonous hydrogen sulfide gas in marine sediments and in terrestrial environments such as drilling sites for petroleum products.