Fungalpedia – Note 416, Rinaldiella
Rinaldiella Deanna A. Sutton, Y. Marín, Guarro & E.H. Thomps.
Citation when using this data: Tibpromma et al. 2024 (in prep.) – Fungalpedia, Ascomycota.
Index Fungorum, Facesoffungi, MycoBank, GenBank, Fig. 1
Classification: Neoschizotheciaceae, Sordariales, Sordariomycetidae, Sordariomycetes, Pezizomycotina, Ascomycota, Fungi.
Rinaldiella was introduced by Crous et al. (2014) as a monotypic genus within Lasiosphaeriaceae and typed with Rinaldiella pentagonospora based on morphology and phylogeny analysis of SSU and ITS. Rinaldiella is characterized by immersed, ostiolate, pyriform to subglobose, dark brown to black ascomata, with a conspicuous conical neck and covered with hyphal-like hairs, 8-spored, fasciculate, clavate to cylindrical asci, without apical ring, and cylindrical, sigmoid or geniculate thick-walled, 1-celled ascospores with an ornamented walls and apical germ pore (Crous et al. 2014). Rinaldiella pentagonospora has been isolated from a contaminated human lesion in the USA (Crous et al. 2014). Only one species was accepted in Rinaldiella, and only in the sexual morph. Morphologically, Rinaldiella is similar to Apiosordaria, with versicolored ascospores with ornamented walls; however, they are very different in terms of molecular data (Crous et al. 2014, Hyde et al. 2020). Based on a search of the NCBIs GenBank nucleotide database of the LSU sequence, Rinaldiella is the closest to Immersiella immersa; however, it is very different morphologically, with the latter having cylindrical, sigmoid, or geniculate and 1-celled ascospores (Miller & Huhndorf 2004, Crous et al. 2014). Later, Huang et al. (2021) placed Rinaldiella to Neoschizotheciaceae, based on its ex-type strain, Rinaldiella pentagonospora (CBS 132344) which is sister to Echria in Neoschizotheciaceae. Rinaldiella can be distinguished from other genera based on its morphology and phylogeny.
Type species: Rinaldiella pentagonospora Deanna A. Sutton, Y. Marín, Guarro & E.H. Thomps.
Other accepted species: This genus is monotypic.
Figure 1 – Morphological features of Rinaldiella pentagonospora. a Ascoma. b Ascus. c Ascospores. Scale bars: a = 50 μm, b = 10 μm, c = 2.5 μm. Redrawn from Crous et al. (2014).
References
Entry by
Liu XF, Center for Yunnan Plateau Biological Resources Protection and Utilization, College of Biological Resource and Food Engineering, Qujing Normal University, Qujing, Yunnan 655011, 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 Saowaluck Tibpromma, Samaneh Chaharmiri-Dokhaharani, & Achala R. Rathnayaka)
Published online 26 November 2024