Dothideales » Dothideaceae » Dothiora

Dothiora spartii

Dothiora spartii Dissan., Camporesi & K.D. Hyde, in Hyde et al., Fungal Diversity 87: 29 (2017)

Index Fungorum number: IF 552773; Facesofungi number: FoF 02892

Etymology: name refers to the host.

Holotype: MFLU 15-3469.

            Saprobic on aerial branch of Spartium junceum L. Sexual morph: Ascostromata 370–715 μm high, 320–340 μm diameter, immersed in the epidermis, solitary or clustered, globose, brown to black, with single locules. Peridium 30–50 μm wide, two-layered, outer layer composed of dark brown or brown, thick-walled cells of textura angularis, inner layer composed of hyaline, thin-walled cells of textura angularis. Asci 140–175 × 15–22 μm (x̄ = 155 × 17 μm, n = 20), 8-spored, bitunicate, fissitunicate, cylindro-clavate, short pedicellate, apically rounded, with a small ocular chamber. Ascospores 17–21 × 5–7 μm (x̄ = 19 × 6 μm, n = 30), bi-seriate to multi-seriate, hyaline, aseptate, fusoid to ovoid, smooth-walled, with granular contents, lacking a mucilaginous sheath. Asexual morph: Undetermined.

            Material examined: ITALY, Province of Forlì-Cesena [FC], near Corniolo—Santa, on dead aerial branch of Spartium junceum (Fabaceae), 25 October 2012, E. Camporesi, IT 845 (MFLU 15-3469, holotype; KUN, isotype).

GenBank numbers ITS: MF443250, LSU: MF443253.

            Notes: We could not obtain a culture from single conidia. Therefore, fungal DNA was extracted directly from the ascomata. In the combined gene analysis, Dothiora spartii clusters with D. buxi (Hyde et al. 2016) with high bootstrap support (Hyde et al.2017). However, D. spartii is distinct from D. buxi in having 8-spored asci (Hyde et al.2017). Compared to D. buxi, D. spartii has hyaline ascospores and spores lack of thin mucilaginous sheath. The asci of D. coronillae are globose, while those in D. spartii are fusiform.