Arbuscular mycorrhizal fungi Nizanda the region, Oaxaca, Mexico
AbstractTwenty five species and seven genera of micorrhizal arbuscular fungi (AMF) are reported for the region of Nizanda, Oaxaca, Mexico. To this end, soil samples were taken randomly, during the rainy and the dry seasons, in corn fields, secondary vegetation areas, as well as in primary tropical dry forest. Spores were isolated, identified and propagation pots were set. The family Glomeraceae accounted for 44% of the species, followed by Acaulosporaceae (24%) and Gigasporaceae (20%). In the corn fields 13 species were found, 24 in secondary vegetation, and 12 in the tropical dry forest. Among these, Glomus dussi, G. verruculosum, Pacispora scintillans and Scutellospora erythropa are new records for Mexico. G. constrictum was encountered only in the corn fields, whereas Acaulospora delicata, A. foveata, A. mellea, A. scrobiculata, Entrophospora infrequens, Gigaspora decipiens, Glomus claroideum, G. fulvum and G. geosporum occurred in the three environments. No species were restricted to the tropical dry forest.
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