Fungalpedia – Note 1 Pseudotruncatella
Pseudotruncatella R.H. Perera, Camporesi, Maharachch. & K.D. Hyde
Citation: Bhunjun et al. 2023 – Fungalpedia, genera described in 2018, Mycosphere (in press)
Index Fungorum, Facesoffungi, MycoBank, GenBank, Fig. 1
Perera et al. (2018) introduced Pseudotruncatella in Amphisphaeriales genera incertae sedis based on analysis of combined LSU, ITS, and SSU sequence data. Three species have been reported. Pseudotruncatella bolusanthi Crous was introduced from the living leaves of Bolusanthus speciosus in South Africa, and the family Pseudotruncatellaceae was introduced to accommodate Pseudotruncatella in Amphisphaeriales (Crous et al. 2019). Pseudotruncatella bolusanthi can be distinguished from P. arezzoensis based on its smaller, 2-septate conidia (17–20 × 6.5–7 μm vs 20–25 × 5.4–6.5 μm, 3-septate in P. arezzoensis). Pseudotruncatella camporesii Goonas. & Hyde was introduced from a dead stem of Helichrysum sp. in Italy (Hyde et al. 2020) and it can be distinguished from P. arezzoensis by its conidiomata (170–250 μm high, 280–400 μm wide vs 230–275 μm high, 255–280 μm wide in P. arezzoensis). Pseudotruncatella arezzoensis was isolated from dead branches of Cytisus and Helichrysum species from Italy (Perera et al. 2018). Pseudotruncatella arezzoensis has pycnidioid, immersed to semi-immersed conidiomata, while in P. camporesii they are acervular to pycnidioid, semi-immersed to superficial (Hyde et al., 2020).
Type species: Pseudotruncatella arezzoensis R.H. Perera, Camporesi, Maharachch. & K.D. Hyde
Other accepted species:
Pseudotruncatella bolusanthi Crous
Pseudotruncatella camporesii Goonas. & Hyde
Fig 1. Pseudotruncatella arezzoensis (MFLU 15-2285, holotype) a. Conidiomata on host substrate. b. Vertical section of conidioma. c. Section through peridium. d–f. Conidiogenous cells with mature and immature conidia. g–j. Conidia. k. Germinating conidium. l, m. Cultures on PDA. Scale bars: b = 100 μm, c–k = 20 μm. Photo credits: Rekhani H. Perera.
References
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Entry by
Yuwei Hu, Mountain Futures Research Centre, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
Thatsanee Luangharn, Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, 57100, Thailand
(Edited by Chitrabhanu S. Bhunjun and Kevin D. Hyde)
Published online 4 April 2023