Sousa, C. da S. Menezes, R.S.C. Sampaio, E.V. de S.B. Lima, F. de S. Maia, L.C. Oehl, F. Arbuscular mycorrhizal fungi in successional stages of caatinga in the semi-arid region of Brazil Subjects--Topical Terms: MICORRIZA VESICULAR ARBUSCULARSOLOREVEGETAÇÃO