Botryosphaeriaceae

Guignardia bidwellii on a sheet

The Botryosphaeriaceae are a family of ascomycetes that form alone the order Botryosphaeriales.

Features

The fruit bodies ( ascomata ) are uni- up multiloculär and have multi-layered, dark brown walls. They are available individually or in groups and are often embedded in stromal tissue. The ascus wall has two layers ( bitunicat ), with a thick (inner) Endotunica. The shape of the fruit body is stalked or sessile, with a well developed Apikalkammer. Hyaline, septate Pseudoparaphysen occur. The ascospores are hyaline or pigmented, can be septate. The shape is ellipsoidal to ovoid. A mucous appendage or distinction may be present.

Anamorphic form one to multilocular pycnidia which are often embedded in stromal tissue. The conidia are hyaline cells and phialidic, the conidia are hyaline or pigmented, thin - or thick-walled, which have in some species mucous sheaths or appendages.

System

Eriksson (2006 ) the family still led as " incertae sedis Dothideomycetes et Chaetothyriomycetes ": Schoch et al. have put in the same year the family in its own order Botryosphaeriales that is assigned within the Dothidiomycetes any subclass.

After the establishment of Eriksson following genera belong to the family:

• Amarenomyces
• Auer Waldi Ella
• Botryosphaeria
• Dothidotthia
• Guignardia Guignardia bidwellii: causative agent of black rot of the vine