Acaulospora spinosa resembles A. elegans but differs in lacking a complete reticulum supermposed on the spines at maturity and having only two thin inner walls (Walker; Trappe, 1981)
We suggest this species to be categorized as Least Concern (LC) due to the several records worldwide.
The species is known in 11 countries.
A very common species in several countries. It has 100 data according to GBIF when searching Acaulospora spinosa.
Population Trend: Uncertain
In Brazil, the species is found in Caatinga, Amazon, Atlantic Forest and Cerrado.
In Brazil, Acaulospora spinosa can be found in Tropical rainforest and Tropical Dry Forest. However, these forests currently have higher rates of deforestation.
Some records in Brazil are in unprotected areas. The isolation of this fungus in controlled condition represents an advance for the conservation of this species.
Other areas should be studied in order to assess the distribution of this species.
Marinho, F., da Silva, I. R., Oehl, F., & Maia, L. C. 2018. Checklist of arbuscular mycorrhizal fungi in tropical forests. Sydowia, 70, 107-127.
Wang, F. Y., & Shi, Z. Y. 2008. Biodiversity of arbuscular mycorrhizal fungi in China: a review. Advances in Environmental Biology, 2(1), 31-39.
Walker, C., & JM, T. 1981. Acaulospora spinosa sp. nov. with a key to the species of Acaulospora. 12(2), 515-521.