Pleosporales » Pseudopyrenochaetaceae » Pseudopyrenochaeta

Pseudopyrenochaeta lycopersici

Pseudopyrenochaeta lycopersici (R.W. Schneid. & Gerlach) Valenz.-Lopez, Crous, Stchigel, Guarro & Cano, in Valenzuela-Lopez et al., Stud. Mycol. 90: 53 (2017).

Pyrenochaeta lycopersici R.W. Schneid. & Gerlach, Phytopath. Z. 56: 121 (1966).

            Index Fungorum number: IF 820431; Facesoffungi number: FoF 08354, Fig. 1

Description: see Valenzuela-Lopez et al. (2017).

Material examined: see Valenzuela-Lopez et al. (2017).

Fig. 1 Pseudopyrenochaeta lycopersici (redrawn from Pyrenochaeta lycopersici in Schneider and Gerlach 1966). a Conidia. b, c Conidiophores and conidiogenous cells. Scale bar = 40 μm.

Importance and distribution

Pseudopyrenochaeta comprises two species. Pseudopyrenochaeta lycopersici was isolated from roots of Lycopersicon esculentum (Solanaceae) in Europe (Germany) while P. terrestris was found from greenhouse soil in Europe (Netherlands). Pyrenochaeta lycopersici subsists in the soil and in repressed tomato roots as microsclerotia (Hasna et al. 2007). The microsclerotia germinate and form mycelium that in turn infect the roots of tomato and other hosts. The disease is commonly known as corky root of tomato (Fiume and Fiume 2003).



Fiume F, Fiume G. 2003 Use of culture filtrates of Pyrenochaeta Lycopersici in tests for selecting tolerant varieties of tomato. Journal of Plant Pathology 85, 131–133.

Hasna MK, Lagerlöf J, Rämert B. 2008 Effects of fungivorous nematodes on corky root disease of tomato grown in compost-amended soil. Acta Agriculturae Scandinavica Section B-soil and Plant Science 58, 145–153.

Schneider R, Gerlach W. 1966 Pyrenochaeta lycopersici nov. spec., der Erreger der Korkwurzelkrankheit der Tomate. Phytopathologische Zeitschrift 56, 117–122.

Valenzuela-Lopez N, Cano-Lira JF, Guarro J, Sutton DA et al. 2018 – Coelomycetous Dothideomycetes with emphasis on the families Cucurbitariaceae and Didymellaceae. Studies in Mycology 90, 1–69.


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