Potato Wart in the Federal Republic of Germany

Abstract

A survey shows the present situation of the occurrence of potato wart (Synchytrium endobioticum) in the Federal Republic of Germany. By 1960 five different pathotypes (races) could be detected. Only 1 % of all foci identified after the Second World War belonged to the old pathotype 1 (← common race →). Questions of determination and emergence of new pathotypes as well as those of official restrictions on cultivar release are discussed.

Characterization of resistance to Synchytrium endobioticum in cultivated potato accessions from the collection of Vavilov Institute of Plant Industry

“…It is known that gene Sen1 completely blocks development and reproductive abilities of pathotype 1 (D1) of S. endobioticum (Langerfeld 1984, Lellbach and Effmert 1990, Hehl et al. 1999).…”

“…Studies of genetic control of resistance to wart disease initially suggested three dominant genes (Black 1935), or one dominant and two complementary genes (Lunden 1950) effective against pathotype 1 (D1). Later studies showed that a single gene Sen1 (its dominant allele) determines the resistance to pathotype 1 (D1) of S. endobioticum (Langerfeld 1984, Lellbach and Effmert 1990). Hehl et al.…”

Identification of the pathotype of Synchytrium endobioticum, causal agent of potato wart disease, present in Georgia

“…Potato wart disease is one of the most important quarantine diseases of potato in the world (Smith et al, 1997;Baayen et al, 2006;van de Vossenberg et al, 2018). The disease is caused by Synchytrium endobioticum, which after infection causes tumour-like outgrowths near a meristematic tissue (Langerfeld, 1984). The disease has a worldwide distribution but is usually restricted to certain areas within the countries affected (EPPO, 2017).…”