The distinctive properties of Ambispora gerdemannii are its fragile bi-layered germinal wall 1 and the mode of differentiation of spores of this fungus. Additionally, the species is a dimorphic fungus producing two morphotypes, acaulosporioid (as in Acaulospora spp.) and glomoid (as in Glomus spp.), a phenomenon rarely occurring in other species of AMF (Błaszkowski, 2003).
Due to the several records worldwide, we suggest this species to be categorized as Least Concern (LC).
This species is known in 10 countries.
There are about 10 records in three countries in GBIF. However, it can be found in other countries too.
Population Trend: Uncertain
In Brazil the species is found in the Amazon, Atlantic Forest, Caatinga and Cerrado.
This species can be found in Brazilian Tropical rainforest and Tropical Dry Forest. These forests currently have higher rates of deforestation, especially the Atlantic Forest, which is considered a hotspot. Thus, the removal of vegetation and soil disturbance constitute a risk to the arbuscular mycorrhizal fungi community.
Most records are in area with native vegetation of Brazil. 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.
Cofré, M. N., Soteras, F., del Rosario Iglesias, M., Velázquez, S., Abarca, C., Risio, L., ... & Lugo, M. A. 2019. Biodiversity of Arbuscular Mycorrhizal Fungi in South America: A Review. In Mycorrhizal Fungi in South America (pp. 49-72). Springer, Cham.
Jobim, K., Vista, X. M., & Goto, B. T. 2018. Updates on the knowledge of Arbuscular Mycorrhizal Fungi (Glomeromycotina) in the Atlantic Forest biome–an example of very high species richness in the Brazilian landscape. Mycotaxon, 133(1), 209-209.
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.