Absorption and Translocation of Phosphate-32P

摘要: Terrestrial seed plants require approximately 12 mineral elements, in addition to nitrogen, which they absorb as inorganic ions through their roots from the soil. Ion absorption occurs by two basic processes commonly known passive and active ion uptake. Passive is largely a diffusional process does not direct expenditure of metabolic energy. Active absorption, contrast, metabolically dependent, highly regulated certain species are accumulated plant concentrations greatly excess concentration soil, while other excluded. Both uptake generally influenced factors affect respiration root, with latter being more directly affected this way than former. Factors influence transpiration rate often rates also, but subject