Fungalpedia – Note 2844, Parabahusutrabeeja

 

Parabahusutrabeeja. W.P. Wu & Y.Z. Diao.

Citation when using this data: Wenping W et al. 2022 – Fungalpedia.

Index Fungorum, Facesoffungi, MycoBank, GenBank, Fig 1

Classification: Chaetosphaeriaceae, Chaetosphaeriales, Sordariomycetidae, Sordariomycetes, Pezizomycotina, Ascomycota, Fungi

Etymology: Refers to its similarity on morphology to the genus Bahusutrabeeja.

Diagnosis: Similar to Codinaeella and Bahusutrabeeja, but differs in conidiogenous cells with inconspicuous collarettes, and globose conidia with only one short setulae. immersed, composed of pale brown to brown, branched and septate hyphae. Teleomorph: Unknown. Anamorph: Conidiophores macronematous, solitary, simple, erect, straight, or slightly flexuous, dark brown, septate, smoothwalled in the lower part, becoming strongly verruculose in the upper part, thick-walled, with a swollen basal cell, terminating in a conidiogenous cell. Conidiogenous cells integrated, terminal, monophialidic, cylindrical, dark brown, apex medium brown, proliferating percurrently, with narrow sporulating loci, collarette indistinct. Conidia acrogenous, solitary, globose to subglobose, hyaline, smooth, with one slender apical setulae, produced in chains or accumulating in a head at the tips of the conidiogenous cells.

Ecology/Substrate/Host: Saprobe on dead material of plant.

Geographical distribution: China

Notes: Morphologically Parabahusutrabeeja resembles Codinaeella and Bahusutrabeeja, but differs by monophialidic conidiogenous with inconspicuous collarette and globose to subglobose conidia with only one apical setulae (Seifert et al. 2011). In addition, the conidia in Parabahusutrabeeja are usually formed in chain or loosely aggregated around the tips of the conidiogenous cells, but not in wet spore mass. Phylogenetic analysis based on the LSU and ITS sequences also supports the establishment of the new genus.

Type species: Parabahusutrabeeja minima W.P. Wu & Y.Z. Diao, Fungal Diversity 116: 191 (2022)

Other accepted species: Species Fungorum – search Parabahusutrabeeja.

Figure 1 – Parabahusutrabeeja minima (a–n Wu12460, o–t Wu12456). a–g Conidiophores with percurrent proliferations and terminal phialidic conidiogenous cells. h–t Conidia. Scale bar: a–c 10 μm, d–t 5 μm.

References

Seifert KA, Morgan-Jones G, Gams W, Kendrick WB 2011 – The genera of Hyphomycetes. CBS biodiversity series, vol 9. CBSKNAW Fungal Biodiversity Center, Utrecht, pp 1–997.

Entry by

Wenping Wu, R&D Center, Novozymes China, No. 14 Xin Xi Lu, Shangdi Zone, Haidian District, Beijing 100085, People’s Republic of China

Published online 3 August 2026