We cloned DNA fragments of sisomicin-producing Micromonospora inyoensis into Streptomyces plasmid vectors and identified Streptomyces lividans TK24 transformants expressing the M. inyoensis sisomicin-resistance (sisA) gene. The sisA gene was compared to the previously reported Micromonospora purpurea Kan-Gen (kanamycin-gentamicin)-resistance gene. While the restriction endonuclease digestion pa...

in order to assess the immunopathological effects of aqueous echinacea purpurea extract (epe) on mice experimentally challenged with pasteurella multocida serotype a, forty female balb/c mice were randomly divided into four groups. the groups included a control group (received sterile distilled water 2 times/week for 2 weeks, intraperitoneally and then 100 μl sterile saline intranasally), a pma...

The study involved seven species and cultivars of ornamental apple trees including Malus × floribunda, M. halliana, niedzwetzkyana, purpurea, purpurea ‘Ola’, ‘Royalty’, ‘Selkirk’. average value increment, length, duration shoots’ growth were determined to characterize the seasonal shoots. percentages rooted cuttings, callus formation without roots, unviable cuttings registered for each investig...

1. In nutrient-poor environments, plants employ many strategies to acquire and recycle scarce nutrients. Predictable relationships among a variety of leaf traits, including leaf nitrogen (N) suggest that how plants obtain, use, store and re-use N is a major component of plant fitness. The northern pitcher plant, Sarracenia purpurea , receives nitrogen from multiple sources: NH 4 and NO 3 dissol...

The Effect of Hormone Seed Priming Using Gibberellic Acid on Germination Characteristics and Seedling Growth Coneflower (Echinacea purpurea)

hepatitis b, a common infectious disease of liver, is transmitted by blood and body fluids like semen and vaginal fluid that carry hepatitis b virus (hbv).  in chronic infection, medical care is required to decrease possibility of cirrhosis and liver cancer. in the present report, the hepatoprotective effect of an echinacea purpurea preparation (echiherb®) has been described in a patient who su...