PURPOSE In our previous study, Ag+-loaded TiO2 and Ag+-loaded SiO2 coatings for tracheal intubation were prepared to prevent ventilator-associated pneumonia (VAP), but the antimicrobial targets and the underlying mechanisms of TiO2 and Ag-TiO2 (Ag+) are still unclear. We attempted to elucidate the antimicrobial activity and potential mechanisms against Staphylococcus aureus. METHODOLOGY The s...

drought stress is one of the most important factors limiting the survival and growth of plants in the different habitats of iran. detailed knowledge about the ecophysiological responses of native plants to drought stress could contribute to the success of breeding and re-vegetation programs. six wild populations of anthemis tinctoria, were assigned to four drought treatments, i.e. well-watered ...

Drought stress was generated by PEG 6000. Water potentials were: zero as the control, and –0.15, –0.49, –1.03, and –1.76 MPa as treatments. After 24-h treatment the total soluble protein content of 2 maize (Zea mays L.) cultivars (704 and 301) was determined and SDS-PAGE gel electrophoresis in the first dimension was performed. By decreasing water potentials, total soluble protein content first...

Plants of the wilty tomato (Lycopersicum esculentum) mutant, flacca, and of the normal cultivar Rheinlands Ruhm growing under either "normal" or high humidity were used in this research. Under normal humidity, RNase activity was much higher in mutant plants in which abscisic acid (ABA) and water content were lower than in the normal plant. The mutant also contained less RNA and protein per cell...

in the present study, effects of iron excess treatments (0, 250, 500 mg l-1) were evaluated in four rice varieties including shafagh, khazar, hashemi and sadri in pot condition. afterward, effects of iron excess (10 and 250 mg l-1) were further investigated in the most resistant variety (shafagh) in sand culture with yoshida nutrient solution. this experiment was arranged as factorial in rcbd w...

this study investigated the effect of season (wet and dry) on milk composition of the dromedary camel (camelus dromedarius). milk samples representing the wet and dry seasons were analyzed for total solids (ts), fat (f), solids-non-fat (snf), ash, crude protein (cp), nitrogen soluble at ph 4.6 (sn), mineral content (mc) and casein fraction (cnf). camel milk had higher (p<0.05) fat content in th...

Individual fish processing waste stream components can be used to make feed ingredients or other products. Waste stream components obtained from commercial fish processing plants included heads, viscera, frames, and skins from Alaska pollock (Theragra chalcogramma) and Pacijic cod (Gadus macrocephalus); and heads, and viscera from pink salmon (Oncorhynchus gorbuscha). The protein content of hea...

in order to evaluate the inter-specific hybrid p. atlantica × p. vera cv. ‘badami- riz- zarand’ to drought stress, a factorial experiement was conducted as based on a completely randomized design of three irrigation intervals 3, 6 and 9 days on qazvini, badami-riz-zarand and the hybrid of p. atlantica × p. vera cv. badami- riz-zarand rootstocks of pistachio. results indicated that such physiolo...

This study investigated the nutritional quality of soybean meal (SBM) fermented by Aspergillus (FSBMA) and/or followed by Lactobacillus fermentation (FSBMA+L). Both fermented products significantly improved protein utilization of SBM with higher trichloroacetic acid (TCA) soluble true protein content, in vitro protein digestibility and available lysine content, especially in FSBMA+L. Moreover, ...