viticola ascospores have a rounded projection at the tip and base. When the new genus Spencermartinsia was introduced, Dothiorella viticola was reclassified as S. viticola (Phillips et al. 2008). Subsequently, Pérez et al. (2010) described the second species, an endophyte, Spencermartinsia uruguayensis C.A. Pérez, R.A. Blanchette, B. Slippers & M.J. Wingfield, based on the phylogeny and morphology of the asexual morph formed in culture. Spencermartinsia formed a complex group with Dothiorella and as it is difficult to distinguish them based on asexual-morphs, a combined gene phylogenetic analysis has thus been used to differentiate these genera. In this study, Dothiorella and Spencermartinsia

have been shown to be distinct genera in Vistusertib research buy Botryosphaeriaceae (Fig. 1). Generic type: Spencermartinsia viticola (A.J.L. Phillips NVP-BSK805 & J. Luque) A.J.L. Phillips, A. Alves & Crous Spencermartinsia viticola (A.J.L. Phillips & J. Luque) A.J.L. Phillips, A. Alves & Crous, Persoonia 21: 51 (2008) MycoBank: MB511763 (Fig. 35) Fig. 35 Sexual (a–j) and asexual (k–q) morphs of Spencermartinsia viticola (LISE 95177, holotype) a–c

Ascostromata on host substrate, note the cross section in surface view in c. d Section through ascostromata and peridium e Ascus. f Pseudoparaphyses. g–j Ascospores. k Section through conidioma. l–m Conidiogenous cells and developing conidia. n–q Dark brown conidia with 1–septa and light brown young aseptate conidia. Scale Bars: d = 100 μm, e = 50 μm, f–j = 10 μm, k = 50 μm, l–q = 10 μm ≡ Erismodegib supplier Botryosphaeria viticola A.J.L. Phillips & J. Luque, Mycologia 97: 1118 (2006) [2005] Saprobic on canes

of Vitis. Ascostromata black, pseudothecial, solitary or in botryose clusters, initially immersed in host, erumpent at maturity, multilocular, with four to numerous locules, with individual ostioles, Ostiole circular, central, papillate; up to 40 μm during thick, dark brown comprising cells of thick-walled textura angularis, cells of ascostromata brown-walled textura angularis. Peridium of locules two-layered, outer layer composed of small heavily pigmented thick-walled cells of textura angularis, inner layer composed of hyaline thin-walled cells of textura angularis. Pseudoparaphyses hyphae-like, septate, slightly constricted at septum, up to 3–4 μm wide. Asci 100–110 × 25–30 μm, 8–spored, bitunicate, fissitunicate, clavate, pedicellate, with a well-developed ocular chamber, arising from base of the ascoma. Ascospores irregularly biseriate, 21–24 × 9–11.5 μm, 1–septate, brown to dark brown, ovate to subclavate, slightly constricted at septum, thick-walled, often with a small rounded projection at the apex and base, with basal cell tapering into an obtuse base. Conidiomata pycnidial, black, separate or aggregated into botryose clusters, immersed, then erumpent, spherical to globose, unilocular, thick-walled, wall of three layers of dark brown cells textura angularis. Ostiole single, central, circular. Conidiophores hyaline, cylindrical.