Mycosphaerellales » Mycosphaerellaceae

Catenulocercospora

Catenulocercospora C. Nakash., Videira & Crous, in Videira et al., Stud. Mycol. 87: 303 (2017).

 Index Fungorum number: IF 822580; Facesoffungi number: FoF 08481, 1 morphological species (Species Fungorum 2022), 1 species with molecular data.

Pathogenic, forming brown rectangular leaf spots. Sexual morph: Unknown. Asexual morph: see dothideomycetes.org.

 

Type species: Catenulocercospora fusimaculans (G.F. Atk.) C. Nakash., Videira & Crous

 

Notes: Catenulocercospora is characterised by hyaline mycelium, pale brown to hyaline conidiophores and obclavate or cylindrical to filiform conidia. In the phylogenetic analysis of Videira et al. (2017), Catenulocercospora formed a distinct lineage close to Ramulispora. Catenulocercospora morphologically differs from Ramulispora and is a distinct genus in Mycosphaerellaceae. Molecular markers available for Catenulocercospora include ITS, LSU, Actin, BTUB, Calmodulin, RPB2 and TEF-1.

r leaf spots. Sexual morph: Unknown. Asexual morph: Caespituli amphigenous, mainly hypophyllous, hyaline. Mycelium internal, hyaline. Stromata small to developed, brown, globose. Conidiophores pale brown at the base and turning hyaline towards the apex, septate, straight to geniculate-sinuous. Conidiogenous cells integrated, mono- or polyblastic, with darkened, thickened and refractive rim-like conidiogenous loci. Conidia hyaline, solitary or catenate in branched chains, rounded at the apex when solitary, obclavate or cylindrical to filiform, septate, with rim-like hila that are thickened, darkened and refractive (adapted from Videira et al. 2017).

 

Type species: Catenulocercospora fusimaculans (G.F. Atk.) C. Nakash., Videira & Crous

 

Notes: Catenulocercospora is characterised by hyaline mycelium, pale brown to hyaline conidiophores and obclavate or cylindrical to filiform conidia. In the phylogenetic analysis of Videira et al. (2017), Catenulocercospora formed a distinct lineage close to Ramulispora. Catenulocercospora morphologically differs from Ramulispora and is a distinct genus in Mycosphaerellaceae. Molecular markers available for Catenulocercospora include ITS, LSU, Actin, BTUB, Calmodulin, RPB2 and TEF-1.

 

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