A new pathotype of Synchytrium endobioticum in Turkey: Pathotype 2

Patates siğil hastalığı etmeni Synchytrium endobioticum (Schilb.) Perc. patateste (Solanumtuberosum L.) zarar yapan en önemli organizmalardan biridir. Etmen EPPO'da A2 listesizararlısı olarak yer almaktadır. Hastalık, sınırlı alanlarda birçok Avrupa ülkesindegörülmektedir. Patates siğil hastalığının şimdiye kadar 40'dan fazla patotipi tanımlanmışolup, Avrupa'daki en önemli patotipler 1(D1), 2(G1), 6(O1), 8(F1) ve 18(T1) olarakbelirlenmiştir. Türkiye'de 6(O1), 18(T1) ve 38(Nev) numaralı patotipler tespit edilmiştir.Türkiye'de patates üretimi ve pazarlaması için hastalık artan bir sorun haline gelmiştir. OrtaAnadolu'da 2014 yılında hastalıkla bulaşık alan 3.432,5 ha olarak rapor edilmiştir. Buçalışmada yerel patotipleri belirlemek amacıyla 2014 yılında Nevşehir ili Derinkuyuilçesinde iki farklı bulaşık alandan toprak örnekleri alınmıştır. Patotiplerin belirlenmesi içinGlynne-Lemmerzahl metodu ve saksı testi ile iki farklı araştırma yürütülmüştür. Buçalışmaların yürütüldüğü iki farklı tarlada bulunan S. endobioticum patotipleri 2(G1) ve18(T1) olarak belirlenmiştir. Bu çalışma Türkiye'de patotip 2'nin belirlenmesinin ilkraporudur.

Türkiye'de Synchytrium endobioticum'un yeni bir patotipi: Patotip 2

Synchytrium endobioticum (Schilb.) Perc., the causal agent of potato wart disease, is one of the most important harmful organisms on potato (Solanum tuberosum L.). It is listed in the EPPO A2 list as a pest recommended for regulation. The disease occurs in many European countries in local limited areas. So far, more than 40 pathotypes of Synchytrium endobioticum are currently described in Europe, from which, the most important pathotypes are 1(D1), 2(G1), 6(O1), 8(F1) and 18(T1). The pathotypes 6(O1), 18(T1) and 38(Nev) of S. endobioticum were found previously in Turkey. In the following years, the disease became an increasing problem for Turkey in potato production and marketing. A total 3.432,5 ha area was reported as infested by the fungus in the Central Anatolia Region in 2014. In order to determine the local pathotypes, soil samples were collected from two different fields infested with the fungus in Derinkuyu county of Nevşehir city in June 2014. Two different experiments were carried out, a bioassay according to the Glynne-Lemmerzahl method and a pot test. S. endobioticum pathotypes present in the two fields in which the experiments conducted were determined as pathotypes 2(G1) and 18(T1). This paper is the first report of pathotype 2 in Turkey.

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