Query: NC_007716:266500 Aster yellows witches'-broom phytoplasma AYWB, complete genome
Lineage: Aster yellows witches'-broom phytoplasma; Phytoplasma; Acholeplasmataceae; Acholeplasmatales; Tenericutes; Bacteria
General Information: Mycoplasma-like plant pathogen. Aster yellows witches'-broom phytoplasma belongs to a group of mycoplasma-like organisms that infect plants and insects. Phytoplasmas are insect-transmitted plant pathogens that cause economically important diseases in many plant species, including vegetables, ornamentals, and fruit crops. Aster yellows is a sporadic disease of vegetable crops and is transmitted by the aster leafhopper.
Subject: NC_021150:4311902 Azotobacter vinelandii CA6, complete genome
Lineage: Azotobacter vinelandii; Azotobacter; Pseudomonadaceae; Pseudomonadales; Proteobacteria; Bacteria
General Information: This organism was first isolated from the soil in Vineland, New Jersey, although it is found worldwide. It is a large obligate aerobe that has one of the highest respiratory rates of any organism. Azotobacter vinelandii also produces a number of unusual nitrogenases which allow it to fix atmospheric nitrogen to ammonia, a compound it can then use as a nitrogen source. It protects the oxygen-sensitive nitrogenase enzymes through its high respiratory rate, which sequesters the nitrogenase complexes in an anoxic environment. This organism has a number of unusual characteristics. Under extreme environmental conditions, the cell will produce a cyst that is resistant to dessication and is surrounded by two capsular polysaccharide layers. This organism produces two industrially important polysaccharides, poly-beta-hydroxybutyrate (PHB) and alginate. PHB is a thermoplastic biopolymer, and alginate is used in the food industry. Alginate is also used by the pathogen Pseudomonas aeruginosa to infect the lungs of cystic fibrosis patients.