Fungalpedia – Note 87 Synchaetomella
Synchaetomella Decock & Seifert
Citation when using this entry: Su et al., in prep – Fungalpedia, Discomycetes II. Mycosphere.
Following morphological studies and the phylogenetic analyses of SSU, Decock et al. (2005) established Synchaetomella and designated Synchaetomella lunatospora as the type species, without precise order and family affinities. Baral (2015) relied on the phylogeny of Johnston et al. (2014) to introduce Chaetomellaceae within Helotiales and transferred Synchaetomella into Chaetomellaceae (Helotiales) as the genus was morphologically and phylogenetically closely related to Zoellneria and Discohainesia. Synchaetomella was reported as a saprobic genus (Wijayawardene et al. 2017). Synchaetomella is a hyphomycete genus characterized by macronematous conidiophores, synnematous conidiomata with a capitulum, phialidic conidiogenesis, terminal or lateral, acropleurogenous conidiogenous cells, and falcate, allantoid or ellipsoidal, hyaline conidia accumulating in a mucilaginous mass (Decock et al. 2005; Crous et al. 2012; Fiuza et al. 2016). The genus includes three species (Decock et al. 2005; Crous et al. 2012; Fiuza et al. 2016). Synchaetomella acerina was found on leaves of Acer rubrum in the USA (Crous et al. 2012), while S. aquatica was found on decaying submerged leaves of Calophyllum brasiliense in Brazil (Fiuza et al. 2016). Synchaetomella lunatospora was isolated from decaying leaves of angiosperms in a tropical forest of Singapore (Decock et al. 2005).
Type species: Synchaetomella lunatospora Decock, G. Delgado & Seifert
Other accepted species:
Synchaetomella acerina Seifert
Synchaetomella aquatica Fiúza, Gusmão & R.F. Castañeda
Figure 13 – Synchaetomella lunatospora (MUCL 43804). a Synnema. b Acropleurogenous chains of phialides. c Conidia. Scale bars: a = 150 μm, c, d = 10 μm. Re-drawn from Figure 1 and 2 of Decock et al. (2005).
Hongli S, Yunnan Key Laboratory of Fungal Diversity and Green Development, Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan 650201, China; Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, 57100, Thailand; School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand
(Edited by: K. W. Thilini Chethana & Kevin D. Hyde)