Fungalpedia – Note 845, Atronectria
Atronectria. Etayo.
Citation when using this data: Huang SK et al. 2021 (in prep.) – Fungalpedia, Ascomycota.
Index Fungorum, Facesoffungi, MycoBank, GenBank
Classification: Niessliaceae, Hypocreales, Hypocreomycetidae, Sordariomycetes, Pezizomycotina, Ascomycota, Fungi
Lichenicolous. Sexual morph: Ascomata perithecial, solitary or scattered, immersed to erumpent, pyriform to subglobose, black, membranaceous, tuberculate, glabrous, collapsing or collapsing laterally when dry, ostiolate, periphysate. Peridium composed of membranaceous, brown to hyaline cells of textura angularis to textura epidermoidea to textura prismatica. Paraphyses cylindrical, branched, septate, constricted at the septum. Asci 8-spored, unitunicate, cylindrical, pedicellate, apex blunt, apical ring indistinct, evanescent. Ascospores bi-seriate, hyaline to brown, oblong to ellipsoidal, straight or slightly curved, 1-septate, smooth-walled, guttulate. Asexual morph: Undetermined (adapted from Etayo & Sancho 2008, Flakus et al. 2019).
Notes – The lichenicolous Atronectria was introduced by Etayo & Sancho (2008) for A. magellanica. The second species, A. lobariellae, was collected on Lobariella crenulata from Bolivia (Flakus et al. 2019). These two species have perithecial ascomata, cylindrical asci and hyaline ascospores (Etayo & Sancho 2008, Flakus et al. 2019), however no molecular data is available for the Atronectria.
Type species: Atronectria magellanica Etayo, in Etayo & Sancho, Biblthca Lichenol. 98: 52 (2008).
Other accepted species: Species Fungorum – search Atronectria.
Figure 1 – Atronectria magellanica: a–d (MAF-Etayo 22938, holotype); e–g (redrawn from Etayo & Sancho 2008). a Material. b–d Ascomata on the host. e Sectional view of ascoma. f Ascus and paraphyses. g Ascospores; Myrmaeciella endoleuca: h (HBG-2347); i–j (redrawn from Jaklitsch & Voglmayr 2011). h Ascomata on the host. i Ascus. j Ascospores; Eucasphaeria capensis: k–o (redrawn from Crous et al. 2007). k Ascus. l Ascospores. m Conidiophores. n–o Conidia. Scale bars: b = 2 mm, h = 1 mm, c = 500 µm, d = 200 µm, e = 50 µm, f, i, k, m = 20 µm, j, l, n–o = 10 µm, g = 5 µm.
References
Entry by
Shi-Ke Huang, State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, China, The Engineering Research Center of Southwest Bio-Pharmaceutical Resources, Ministry of Education, Guizhou University, Guiyang 550025, Guizhou Province, 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, The Mushroom Research Centre, Guizhou University, Guiyang 550025, China
Published online 14 September 2021