Dothiorella californica
Dothiorella californica D.P. Lawr. & Trouillas 2017
Index Fungorum number: IF 817293; Facesoffungi number: FoF 14005
Saprobic on a dead aerial branch of Laurus nobilis L. Sexual morph: Ascomata 300–350 μm diam., 300–370 μm high (x̄ = 320 × 340 μm, n = 5), pseudothecial, globose to subglobose, semi-immersed, scattered or aggregated, erumpent at maturity, ostiolate, black. Ostioles 80–90 μm high, circular, papillate, central, single. Peridium 40–55 μm thick, composed multi-layered, from outer to inside walls composed of dark brown to pale brown cells of textura angularis to textura globulosa. Hamathecium comprises 2–3 μm wide, thin-walled, hyaline, septate, numerous pseudoparaphyses. Asci 70–135 × 17–22 μm (x̄ = 95 × 18 μm, n = 10), stipitate, arising from the base of the ascoma, cylindric-clavate, bitunicate, with a well-developed apical chamber, 8-spored, uniseriate to biseriate. Ascospores 15–30 × 7–15 μm (x̄ = 21 × 10 μm, n = 20; l/w = 2.1), elliptical to ovate, widest in the middle part, initially aseptate, 1-septate at maturity, slightly constricted at the septum, moderately thick-walled, finely verruculose on the inner surface, initially hyaline, becoming dark brown at maturity. Asexual morph: see Lawrence et al. (2017).
Material examined: Italy, Province of Forlì-Cesena [FC]), Rocca delle Caminate-Predappio, on a dead aerial branch of Laurus nobilis L. (Lauraceae), 28 March 2018, Erio Camporesi, IT 3789 (MFLU 18-0935).
GenBank Accession Numbers: ITS: OQ401057; LSU: OQ411142; tef1-α: OQ437910; tub2: OQ437897.
Notes: Based on the morpho-molecular comparisons Wijesinghe et al. (2023) confirmed this collection as D. californica and the first sexual morph and first Italian report of D. californica as well as on Laurus nobilis hosts.
Figure x. Dothiorella californica (MFLU 18-0935, new host, and geographical record). a–b Ascomata on the dead host surface of Laurus nobilis L. (Lauraceae, Laurales). c–d Sections of ascomata. e Peridium. f Pseudoparaphyses. g–i Asci. j–m Ascospores. Scale bars: a = 500 μm, b, c = 200 μm, d, e = 20 μm, f–m = 10 μm.
References
Wijesinghe SN, Samarakoon MC, Camporesi E, Hyde KD et al. 2023 – Over the footprints of Italian mycology with emphasis on plant-associated Ascomycota. Current Research in Environmental & Applied Mycology (Journal of Fungal Biology), 13, 162–276.
N.B - The data has been directly extracted from the original publication (Wijesinghe et al. 2023) with the permission of the journal Current Research in Environmental & Applied Mycology' (Journal of Fungal Biology).
Last Update: 25 October 2023