• Proposed
  • 2Under Assessment
  • 3Preliminary Assessed
  • 4Assessed
  • 5Published

Acaulospora aspera Corazon-Guivin, Oehl & G.A. Silva

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Scientific name
Acaulospora aspera
Corazon-Guivin, Oehl & G.A. Silva
Common names
IUCN Specialist Group
Assessment status
Proposed by
Lilian Araujo Rodrigues
Comments etc.
Lilian Araujo Rodrigues

Assessment Notes

Taxonomic notes

Acaulospora aspera differs from A. spinosissima by small, irregular washboard-like depressions of OWL2 instead of small spines on the outer spore surface, and from A. herrerae by smaller depressions, which do not form a reticulum on the outer wall layer surface, giving A. aspera an asper, washboard-like appearance (Corazon-Guivin et al., 2019).

Why suggested for a Global Red List Assessment?

Because it is a recently described species, we suggest this species to be categorized as insufficient data (DD).

Geographic range

The species is known in two countries.

Population and Trends

This species was isolated from the rhizosphere of the inka nut (Plukenetia volubilis) in San Martín State of Peru (Western Amazonia) and found in an Atlantic Forest regeneration area in southern Bahia.

Population Trend: Uncertain

Habitat and Ecology

In Brazil, the species is found in Atlantic Forest.

Subtropical/Tropical Moist Lowland Forest


In Brazil, Acaulospora aspera is found in Brazilian Atlantic Forest,  forest currently have higher rates of deforestation and which is considered a hotspot, there is also the fact that this taxon has not been well studied yet.

Housing & urban areasTourism & recreation areasShifting agriculture

Conservation Actions

In Brazil, records for this species are in protected areas, however the isolation of this fungus in controlled condition represents an advance for the conservation of this species

Site/area protectionResource & habitat protectionAwareness & communications

Research needed

Other areas should be studied in order to assess the distribution of this species.

TaxonomyPopulation size, distribution & trendsLife history & ecology

Use and Trade




Corazon-Guivin, MA, Cerna-Mendoza, A, Guerrero-Abad, JC, Vallejos-Tapullima, A, da Silva, GA, Oehl, F (2019). Acaulospora aspera, a new fungal species in the Glomeromycetes from rhizosphere soils of the inka nut (Plukenetia volubilis L.) in Peru. Journal of Applied Botany and Food Quality 92, 250-257.
Rodrigues, LA, da Silva, DKA, Yano-Melo, AM (2021). Arbuscular Mycorrhizal Fungal Assemblages in Conservation Unit of Atlantic Forest Areas Under Native Vegetation and Natural Regeneration. Microbial Ecology. https://doi.org/10.1007/s00248-020-01653-z

Country occurrence

Regional Population and Trends

Country Trend Redlisted