screening of3000 soil samples collected from cities of four different provinces of iran for starch-hydrolysing bacteria revealed that the nature is enriched with streptomyces species capable of producing amylolytic enzymes. among the bacterial isolates, one of the high starch-degrading strains was selected for further microbiological identification and also amylolytic enzyme(s) characterization...

introduction: the purpose of this study was to compare the inhibitory effect of heat-killed candida albicans and dentin powder on the antibacterial activity of chlorhexidine (chx) against enterococcus faecalis and streptococcus sanguis . materials and methods: the antibacterial effect of each group was determined by measuring the zone of inhibition diameter in millimeters after incubation at 37...

glutathione s-transferase (gst) activity pattern was determined in tolerant (cv. sumai#3) and susceptible (cv. falat) wheat heads inoculated with fusarium graminearum, the causal agent of head scab disease (fhb), during various developmental stages. gst specific activity exhibited a transient pattern in sumai#3 reaching a maximum level at the milk stage and declining thereafter. gst level in su...

fractions obtained from partitioning of aerial methanolic extract of euphorbia aellenii with chloroform (e2), ethyl acetate (e3), n-butanol (e4) and water (e5) were investigated in vitro for their phytotoxicity, insecticidal, anti-leishmanial, cytotoxicity, antibacterial and antifungal activities. sample e2 appeared to have significant phytotoxic activity. in the insecticidal screening study on...

an efficient, mild and environmentally friendly method was reported for the synthesis of an efficient, mild and environmentally friendly method was reported for the synthesis of pyranopyroles from aryl aldehydes, ethyl acetoacetate, malononitrile and hydrazine hydrate in the presence of catalytic amounts of methyl imidazolium hydrogen sulfate ([hmim][hso4]) as an efficient catalyst. these synth...