In this study, the effects of different concentrations of silica nanoparticles (NPs) were studied on growth, membrane stability, and antioxidant properties of Matricaria chamomilla in vitro. The sterilized seeds were incubated in different concentrations of silica NPs (0, 2, 4, 6 g L-1<span st...

conclusions taken together, the combination of chemical and growth factors in the two-step induction protocol may improve the efficiency of msc differentiation into neural progenitor cells, and may be a new method for the easy and fast application of mscs in regenerative medicine in the future. results the results of real-time pcr showed that the expression of the gfap, mbp, and map-2 genes aft...

Cellular and tissue activities highly depend on environmental pH. Murine lung tissue, when cultured properly in-vitro, is a potent producer of hematopoietic growth factors. We have studied the effect of pH on the production of hematopoietic growth factors and protein synthesis by the murine lung in-vitro. Various concentrations of NaHC03 were used to adjust the pH of the culture medium unde...

Kirsten murine sarcoma virus (KiMSV)-transformed rat-1, normal rat kidney (NRK), and BALB/c 3T3 cells are capable of continual growth in a serum-free medium supplemented with transferrin and insulin but with no exogenous mitogenic growth factors. Cells transformed by a mutant of KiMSV that is temperature sensitive for the maintenance of transformation grow in this medium at the permissive tempe...

the effects of sucrose and some regulators on freezing tolerance in chickpea studied. four weeks in vitro explants were cultured in three different ms media without growth regulators and with normal level of sucrose (30 gl-1) (a), without growth regulators and with reduced sucrose (10 gl-1) (b) and medium supplemented with lmg gl-1 bap and 0.1 mgi1 iba and with 30 gi-1sucrose (c) for two weeks....

a long-term study was conducted between 1985 and 2003 on rehabilitation trials at sishen ironore mine, south africa, to identify grass species that would survive in the artificial growth medium appliedto the sites, and to determine the most suitable medium for sustainable vegetation growth. vegetationestablishment was tested at slopes of 18° and 34° and with five different cover materials. afte...

background &amp; aim: dracocephalum genus belongs to the lamiaceae family which has eight species in iran. dracocephalum kotschyi boiss is an important medicinal and aromatic plant that use in pharmaceutical industry. in addition, this species is used in iranian traditional medicine. the aim of current study was to examine the various growth regulations and explants on direct organogenesis of d...

The pH of the medium is of vital importance to any bacterium for its growth in that medium. For any bacterium there is an optimal narrow range of pH promoting vigorous growth, and a wider range on either side of the optimum within which growth occurs less vigorously. On the other hand, metabolic processes associated with the growth of a bacteria in any fluid medium cause changes in the pH of th...