Abstract

Mycological Diversity Description I

Highlights

  • Quambalaria fabacearum and Neopestalotiopsis brasiliensis are introduced as new species from Brazil, isolated as endophyte from Mimosa tenuiflora and causing post-harvest rot disease on fruits of Psidium guajava, respectively

  • Neopestalotiopsis egyptiaca is reported as new to the Americas and as causing post-harvest rot disease on fruits of Psidium guajava, while Umbelopsis isabellina is reported as endophyte

  • Q. fabacearum differs from Q. cyanescens mainly in the size of the conidiogenous cells ((5.5–) 9.5–13 (–34) × 1–2 μm in Q. fabacearum vs. 30–40 × 1.5–3 in Q. cyanescens), primary conidia (7.5–8.5 × 1.5–2.5 μm in Q. fabacearum vs. 3.5–6.5 (–25) × 2.5–3.5 in Q. cyanescens), secondary conidia ((3.5–) 4.5–5.5 (–6.5) × 1.5–2 μm in Q. fabacearum vs. 2.5–3.5 × 2–2.5 in Q. cyanescens), and in the presence of chlamydospores in Q. fabacearum

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Summary

Introduction

Quambalaria fabacearum and Neopestalotiopsis brasiliensis are introduced as new species from Brazil, isolated as endophyte from Mimosa tenuiflora and causing post-harvest rot disease on fruits of Psidium guajava, respectively. Neopestalotiopsis egyptiaca is reported as new to the Americas and as causing post-harvest rot disease on fruits of Psidium guajava, while Umbelopsis isabellina is reported as endophyte.

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Conclusion

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