Soil Inoculation With Arbuscular Mycorrhizal (AM) Fungus Glomus Mosseae and Its Effect on Radiocesium Transfer From Soil to Quinoa (Chenopodium Quinoa Willd.) Plants.
Keywords:arbuscular mycorrhizal fungi, soil, inoculation, quinoa, radiocesium
The effect of soil inoculation with arbuscular mycorrhizal (AM) fungus Glomus mosseae on quinoa (Chenopodium quinoa Willd.) biomass, 137Cs activity concentration in plants and 137Cs uptake was investigated on organic, sandy, loamy and clay soils in a greenhouse experiment. Seeds and aboveground plant biomass of plants growing on inoculated (AM +) loamy soil was correspondingly 6 and 3 times higher than in control plants (no soil treatment). 137Cs activity concentration in seeds and aboveground plants parts (leaves and steams) growing on inoculated (AM +) sandy soil was about 3,5 and 5 times higher than activity of radionuclide in control plants. Transfer factors (TF) of 137Cs forseeds and aboveground plants parts growing on inoculated (AM +) sandy soil wasabout 3 and 4 times higher than 137Cs TF for control plants. Although direct evidence of mycorrhizal infection of lateral roots of experimental quinoa plants is not confirmed, it is suggested that the presence of fungi in pre-sterilized and inoculated soil contributed to the release of nutrients as well as radiocesium from soil and enhanced its uptake by plants.
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