Spores range from globose to subglobose, occasionally irregular. They have a size ranging from 90 to 110 µm. It presents a scar indicating the region of contact between spores and the saccular neck during spore synthesis.

Due to the lack of adequate information to make a direct or indirect assessment of its risk of extinction, based on its distribution and / or population status, I would suggest that this species be categorized as insufficient data (DD).

The species in known in 8 countries. Despite having only 4 occurrences in GBIF for Brazil, this species is very common in the country. Having registration from the South to the North of the country.

A very common species in several countries. In Brazil, this species has records from natural areas to contaminated with arsenic.

In Brazil, this species is found in different Brazilian biomes: Amazon rainforest, Cerrado, Atlantic rainforest, Caatinga and Pantanal.

As mandatory symbionts, the threats that affect its hosts (plants) will eventually affect the associated arbuscular mycorrhizal fungi. However, due to the registration of Acaulospora mellea in different environments, including contaminated ones, it may be an indication that this species is more resistant to human disturbances.

The development of necessary actions for the conservation of this species means a response in the search for the improvement of the environmental quality and reduction of the anthropic pressures on the plants and the soil.

Further studies on the ecology of fungi are needed, seeking to understand how mycorrhizal fungi relate to each other, to the host and to the environment.

BONFIM, J. A. et al. Arbuscular mycorrhizal fungi in the Brazilian Atlantic forest: A gradient of environmental restoration. Applied Soil Ecology, v. 71, p. 7-14, 2013.
GOMES, Simone de Paula; TRUFEM, Sandra Farto Botelho. Fungos micorrízicos arbusculares (glomales, zygomycota) na Ilha dos Eucaliptos, represa do Guarapiranga, São Paulo, SP. Acta botânica brasílica, v. 12, n. 3, p. 393-401, 1998.
CAPRONI, Ana Lucy et al. Ocorrência de fungos micorrízicos arbusculares em áreas revegetadas após mineração de bauxita em Porto Trombetas, Pará. Pesquisa Agropecuária Brasileira, v. 38, n. 12, p. 1409-1418, 2003.
WINAGRASKI, Etienne et al. DIVERSITY OF ARBUSCULAR MYCORRHIZAL FUNGI IN FOREST ECOSYSTEMS OF BRAZIL: A REVIEW. Cerne, v. 25, n. 1, p. 25-35, 2019.
JOBIM¹, KHADIJA; OLIVEIRA, BRUNA IOHANNA SANTOS; GOTO, BRUNO TOMIO. Checklist of the Glomeromycota in the Brazilian Savanna. 2016.
SCHNEIDER, Jerusa et al. Arbuscular mycorrhizal fungi in arsenic-contaminated areas in Brazil. Journal of Hazardous Materials, v. 262, p. 1105-1115, 2013.
MAIA, Leonor Costa et al. Species diversity of Glomeromycota in Brazilian biomes. Sydowia, v. 72, p. 181-205, 2020.