Fungalpedia – Note 2868, Pseudothozetella
Pseudothozetella. 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 its similarity to the genus Thozetella in sporodochial conidiomata.
Diagnosis: Similar to Thozetella in producing sporodochial conidiomata with slimy spore mass and hyaline, aseptate, falcate or fusiform to lunate conidia, but differs in no microawns and conidia without setulae.
Teleomorph: Unknown. Anamorph: Conidiomata sporodochia, scattered, punctiform, white, cream to light brown, topped by a moist spore mass. Conidiophores hyaline to pale brown, septate, smooth-walled, simple, or branched, cylindrical, terminating by one to several conidiogenous cells. Conidiogenous cells integrated, terminal, monophialidic, cylindrical, hyaline to pale brown; collarettes inconspicuous, cylindrical, slightly flaring. Conidia holoblastic, falcate, fusiform, lunate, hyaline, aseptate, thin- and smooth-walled, with a truncated or obtuse base and a pointed apex, produced in slimy mass.
Ecology/Substrate/Host: Saprobe on dead material of plant.
Geographical distribution: China.
Notes: The new genus Pseudothozetella is characterized by sporodochial conidiomata, closely packed conidiophores terminating with monophialidic conidiogenous cells, and hyaline, aseptate, falcate, lunate, or fusiform conidia produced in slimy mass. Morphologically it is closely related to Thozetella but lacking microawn and conidial setulae, to Menisporopsis but without setae associated with conidiophores and asetulate conidia (Seifert et al. 2011).
Type species: Pseudothozetella lunata W.P. Wu & Y.Z. Diao, Fungal Diversity 116: 402 (2022)
Other accepted species: Species Fungorum – search Pseudothozetella.
Figure 1 – Pseudothozetella lunata (Wu15207, holotype). a, b Sporodochial conidiomata. c Conidiophores and conidiogenous cells with collarette. d–j Conidia. Scale bar: a 40 μm, b 10 μm, c–j 5 μm.
References
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 27 August 2026