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2Department of Agronomy Faculty of Agriculture, Hasanuddin University, Makassar,South Sulawesi-90245, Indonesia
3Department of Plant Pests and Diseases Faculty of Agriculture, Hasanuddin University, Makassar,South Sulawesi-90245, Indonesia
Endomycorrhiza or arbuscular mycorrhiza has received tremendous attention due toits ability to form a mutualistic symbiotic with 80-96% of plant species. Therefore, the objectives of this study were to identify and to determine the abundance of indigenous endomycorrhiza spores isolated from the nickel post-mining plantation area in Sorowako. Quantitative-qualitative research was conducted in two stages, which were; (1) Rhizosphere sampling of Morus alba and Cyperus rotundus at nickel post-mining in Sumasang 1 area, rhizosphere of Wedelia trilobutu and Melostoma affine in Sumasang 2 block A area, rhizosphere of Gleichenia linearis and Equisetum gigatum in Sumasang 2 block B area, Sorowako village, East Luwu Regency, South Sulawesi Province, Indonesia; (2) Isolation and identification of spores Glomus sp., Acaulospora sp., and Gigasporas sp. were performed at the Microbiology Laboratory, Research and Development Center for Environment and Forestry Makassar, South Sulawesi.Based on the results, it had been found 41.6-63.6% Acaulospora sp. spores with two layers of spore wall and average diameter of 71.6μm; 26.6-50.0% Gigaspora sp. spores with one layer of spore wall and average diameter of 232.7μm, and 8.3-13.3% Glomus sp. spores with hypha remnant to spore wall and average diameter of 85μm in Sumasang nickel post-mining plantation area.