Background:

Arbuscular mycorrhizal fungi (AMF) form symbiotic associations with most plant species, so it is important to know the richness, diversity and functionality of these HMA species.

Objective:

The aim of this study was to determine the composition and abundance of spores of arbuscular mycorrhizal fungi associated with the rhizosphere of Agave cupreata in the dry and rainy season in some mezcal regions from Michoacán.

Methods:

In the two seasons was sampled rhizosphere soil of A. cupreata at eight sites; part of the soil from each site was used to prepare pots propagation of AMF. Spores of mycorrhizal fungi were taxonomically identified based on their morphology, by site, sampling season and propagation pot.

Results and conclusions:

39 morpho-types of AMF were found. In families Glomeraceae and Acaulosporaceae were recorded the greater abundance of morpho-types, 37 and 34%, respectively. Acaulospora scrobiculata, A. spinosa and Glomus deserticola are found in all sampling sites; Rhizophagus intraradices only detected in the pots propagation. 29% of the morpho-types only found in the dry season, 16% in the rainy season and 55% in both sampling periods; in pots were propagated only 38% of the morpho-types.

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