| sexual reproduction in aspergillus tubingensis from section nigri. | a sclerotium-forming member of aspergillus section nigri was sampled from a population in a single field in north carolina, usa, and identified as a. tubingensis based on genealogical concordance analysis. aspergillus tubingensis was shown to be heterothallic, with individual strains containing either a mat1-1 or mat1-2 mating-type gene. strains of opposite mating type were crossed on mixed cereal agar and incubated for 5-6 months. stromata typically formed 1-2 indehiscent ascocarps containing a ... | 2013 | 23709489 |