Bioremediation potential of mycorrhiza fungi in crude oil contaminated soil planted with Costus lucanusianus


Michael E. Nkereuwem, O. Fagbola, Iniobong E. Okon, Adeniyi O. Adeleye and Maximilien Nzamouhe


This study was conducted to assess the impact of arbuscular mycorrhizal fungi on the performance of Costus lucanusianus plant under crude oil contaminated soil. About 10 kg sterilized soil was contaminated with bonny light crude oil at levels. Costus lucanusianus was planted on the soil by stem cutting and inoculations in treatment with AM consist of 20 g of Glomus clarum. Data on residual TPH content of the soil, plant height, number of leaves, fresh and dry weights and percent mycorrhiza root colonization were collected at 4, 8 and 12 weeks after planting (WAP). The 2 x 4 factorial experiment was laid out in completely randomized design (CRD). The results showed that AM inoculated treatments recorded higher and significantly (p<0.05) different plant height, number of leaves, fresh and dry weight. The TPH degradation and removal was higher with treatments inoculated with AM compared to non AM inoculated treatments. This Am colonization resulted in improved physiological parameters of costus plant.


Arbuscular Mycorrhiza, Costus lucanusianus, Bioremediation, Bonny Light Crude Oil, Contaminated Soil

Amaz. Jour. of Plant Resear. 4(1): 441-455. March 2020
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