نتایج جستجو برای: carbon source
تعداد نتایج: 679121 فیلتر نتایج به سال:
Heine biosynthesis was studied in the segregants of Saccharomyces cerevisiae (DW10 tetrade 2) from D27 and D27/C6 mating, as a function of the carbon source in the growth medium and the physiological state of the cells. The effects of the HEM R+ gene on the 5-aminolevulinate synthase (ALA-S) and 5-aminolevulinate dehydratase (ALA-D) activities of heine biosynthesis in cells grown on nonfermenta...
Keeley, J.E., Sternberg, L.O. and DeNiro, M.J., 1986. The use of stable isotopes in the study of photosynthesis in aquatic plants. Aquat. Bot., 26:213--223. The ratio of ~3C/'2C for photosynthetic tissues of 22 aquatic species was unrelated to photosynthetic pathway. In three aquatic environments CAM and non-CAM species were shown to have similar 513C values. Although these CAM species derive u...
Background and purpose: In Iran, Organ phosphorus pesticides such as chloropyrifos and diazinon are widely used in agriculture. These compounds inhibit activity of cholinesterase in nearly irreversible manner resulting in malfunction of nerve impulse transmission. This result in humans can produce illness or even death. Therefore, the present study aims to isolate various bacterial strains...
Black carbon (BC) is one of the short-lived air pollutants that contributes significantly to aerosol radiative forcing and global climate change. It emitted by incomplete combustion fossil fuels, biofuels, biomass. Urban environments are quite complex thus, use mobile jointly with fixed monitoring provides a better understanding dynamics BC distribution in such areas. The present study addresse...
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