Use of Arbuscular Mycorrhizal fungi for more effective bioremediation of contaminated soil using both corn and sunflower

Document Type : Research Paper


Scientific Staff of Soil Biology Department


One of the method to clean up contaminated soil is growing a hyper accumulator plant which is named phytoremediation. Some of  hyper accumulator plants are proper host for mycorrhizal fungi.In this relationship, fungus, consume a part of organic carbon from the plant and by developing its mycelium network help plant to uptake more mineral nutrients from the soil. By doing a greenhouse research tried to determine the mycorrhizal efficiency to increase plant ability in mineral nutrient and heavy metal uptake from a contaminated soil with a high level of Cr, Ni  and Cd .In this exam two hyper accumulator plants , sunflower and corn and also 4 species of mycorrhizal fungi, including, Glomus mosseae , Glomus intraradices ,Glomus etunicatum and Glomus sp and one treatment without fungi as blank, with 5 replications per treatment were used. Results showed that mycorrhizal inoculation in two plants , sunflower and corn by increasing mycorrhizal colonization enhanced aerial part growth of plant and also macro and micro nutrient uptake. T4 treatment, including G.mosseae and G.intraradices in corn growth had the highest capacity for Cd, Ni and Cr uptake from the soil, so that it increased the uptake of these three elements in corn stalks react, 1.57, 3.79 and 4.18 micrograms per pot. In sunflower this treatment was able to increase Cd and Ni uptake, react 0.21 and 0.23 micrograms per pot. Finally if we want to use these two plants for phytoremediation, the use of these two fungi will be proposed.


Main Subjects

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