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molecular identification of streptococcus equi subsp. equi and streptococcus equi subsp. zooepidemicus in nasal swabs samples from horses suffering respiratory infections in iran.the objective of this study was to evaluate the existence of streptococcus equi subsp. equi and streptococcus equi subsp. zooepidemicus as probable agents associated with naturally occurring infection of the equine upper respiratory disease in mashhad area. nasal swabs samples from thirty horses with upper respiratory tract infections were collected. the bacteria isolated and identified were streptococcus equi subsp. equi (1 isolate), streptococcus equi subsp. zooepidemicus (25 isolates), pasteu ...200818817175
a novel thermostable, acidophilic alpha-amylase from a new thermophilic "bacillus sp. ferdowsicous" isolated from ferdows hot mineral spring in iran: purification and biochemical characterization.this paper describes the purification and characterization of a novel acidophile alpha-amylase from newly isolated bacillus sp. ferdowsicous. the enzyme displayed a molecular weight of 53 kda and it was stable over a range of ph from 3.5 to 7 with an optimum around 4.5. the optimum temperature for activity was found to be around 70 degrees c and the enzyme remained active to more than 75% up to 75 degrees c for 45 min. the enzyme activity was decreased by zn(2+)and edta but inhibited by hg(2+), ...201020109486
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