Two new species of Aspergillus section Fumigati isolated from caatinga soil in the State of Pernambuco, Brazil

Abstract

Aspergillus caatingaensis and A. pernambucoensis, isolated from semi-desert soil in caatinga area, the State of Pernambuco, Brazil, are described and illustrated. Aspergillus caatingaensis is characterized by its white cleistothecia, broadly lenticular ascospores with four equatorial crests and irregularly ribbed to slightly reticulate with aculeate convex surfaces, and ellipsoidal to broadly ellipsoidal conidia with a smooth wall. Aspergillus pernambucoensis is characterized by its, white cleistothecia, lenticular ascospores with two equatorial crests and irregularly ribbed with tuberculate to verrucate convex surfaces, and ovoid to broadly ellipsoidal conidia with a smooth wall. The validation of these new species is supported further by analyses of the β-tubulin, calmodulin and actin gene sequences.