Fungalpedia – Note 526, Myrtapenidiella

 

Myrtapenidiella Quaedvl. & Crous

Citation when using this data: Tibpromma et al. 2024 (in prep.) – Fungalpedia, Ascomata.

Index Fungorum, Facesoffungi, MycoBank, GenBank, Fig. 1 

Classification: Teratosphaeriaceae, Mycosphaerellales, Dothideomycetidae, Dothideomycetes, Pezizomycotina, Ascomycota, Fungi.

Based on DNA sequence and morphogy analyses, Quaedvlieg et al. (2014) introduced Myrtapenidiella within Teratosphaeriaceae in Mycosphaerellales with the type species Myrtapenidiella tenuiramis. Myrtapenidiella is characterized by smooth to slightly verruculose or warty, branched, septate mycelium, septate ramoconidia, irregular branching patterns, with hila that are slightly thickened and darkened dimorphic conidiophores, microconidiophores reduced to conidiogenous cells, macroconidiophores erect, finely verruculose, with up to two conidiogenous loci, terminal, rarely intercalary conidiogenous cells, 0–3-septate, subcylindrical or obovoid ramoconidia, broadly fusiform to obovoid or subcylindrical, branched acropetal chains, 0–1-septate and wing-like mucoid sheaths present in some species conidia, mostly 1-celled, rarely septate chlamydospores (Quaedvlieg et al. 2014, Crous et al. 2015, 2016, 2017). Currently, eight species (Myrtapenidiella tenuiramis (type species), M. balenae, M. corymbia, M. eucalypti, M. eucalyptigena, M. eucalyptorum, M. pleurocarpae, and M. sporadicae) were collected from leaves of Corymbia foelscheana, Eucalyptus camaldulensis, E. pellita, E. pleurocarpa, Eucalyptus sp., E. sporadica and E. tenuiramis in Australia, Malaysia, and Thailand (Quaedvlieg et al. 2014, Crous et al. 2015, 2016, 2017).

Type species: Myrtapenidiella tenuiramis (Crous & Summerell) Quaedvl. & Crous

Other accepted species: Species Fungorum – search Myrtapenidiella

Figure 1 – Morphology of Myrtapenidiella eucalyptigena. a-d Conidiophores and conidia. Scale bars: a–d = 10 μm. Redrawn from Quaedvlieg et al. (2014).

 

References

Crous PW, Wingfield MJ, Burgess TI, Hardy GSJ et al. 2016 – Fungal Planet description sheets: 469–557. Persoonia: Molecular Phylogeny and Evolution of Fungi 37, 218.

Crous PW, Wingfield MJ, Burgess TI, Hardy GSJ et al. 2017 – Fungal Planet description sheets: 558–624. Persoonia: Molecular Phylogeny and Evolution of Fungi 38, 240.

Crous PW, Wingfield MJ, Guarro J, Hernández-Restrepo M et al. 2015 – Fungal Planet description sheets: 320–370. Persoonia-Molecular Phylogeny and Evolution of Fungi 34(1), 167–266.

Quaedvlieg W, Binder M, Groenewald JZ, Summerell BA et al. 2014 – Introducing the consolidated species concept to resolve species in the Teratosphaeriaceae. Persoonia-Molecular Phylogeny and Evolution of Fungi 33(1), 1–40.

 

Entry by

Zhang X, Excellence Center of Microbial Diversity and Sustainable Utilization, Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand; Center for Yunnan Plateau Biological Resources Protection and Utilization, College of Biological Resource and Food Engineering, Qujing Normal University, Qujing, Yunnan 655011, China

 

(Edited by Saowaluck Tibpromma, Samaneh Chaharmiri-Dokhaharani, & Achala R. Rathnayaka)

 

Published online 9 December 2024

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