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In vitro Clonal Propagation of Two Turkish Walnut (Juglans regia L.) Varieties     
Yazarlar (3)
Prof. Dr. Sevil SAĞLAM YILMAZ Prof. Dr. Sevil SAĞLAM YILMAZ
Kırşehir Ahi Evran Üniversitesi, Türkiye
Kenan Yıldız
Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Öğr. Gör. Ebru ŞİRİN Öğr. Gör. Ebru ŞİRİN
Kırşehir Ahi Evran Üniversitesi, Türkiye
Devamını Göster
Özet
Bacteria from the genus Dickeya (formerly Erwinia chrysanthemi) are plant pathogens causing severe diseases in many economically important crops. A majority of the strains responsible for potato disease in Europe belong to a newly established Dickeya solani species. Although some ecological and epidemiological studies have been carried out, little is known about the regulation of D. solani virulence, especially regulation of the expression of pectinolytic enzymes, the main pathogenicity factors. The characterization of D. solani strains based on genomic fingerprinting indicated that they are genetically homogenous. A phenotypic characterization of the tested strains indicated differences in their pathogenicity. Mutants of four D. solani strains were constructed by inactivating the genes coding either for one of the main negative regulators of D. dadantii virulence (kdgR, pecS and pecT) or for the synthesis and perception of signaling molecules (expI and expR). Analysis of these mutants indicated that PecS, PecT and KdgR play a similar role in both species, repressing to different degrees the synthesis of virulence factors. The thermoregulator PecT seems to be a major regulator of D. solani virulence. This work also reveals the role of quorum sensing mediated by ExpI and ExpR in D. solani virulence on potato. http://dx. doi. org/10.1016/j. jbiotec. 2014.07. 104
Anahtar Kelimeler
Bildiri Türü Tebliğ/Bildiri
Bildiri Alt Türü Özet Metin Olarak Yayınlanan Tebliğ (Uluslararası Kongre/Sempozyum)
Bildiri Niteliği Web of Science Kapsamındaki Kongre/Sempozyum
Bildiri Dili İngilizce
Kongre Adı European Biotechnology Congress, Journal of Biotechnology 2014
Kongre Tarihi 15-05-2014 / 18-09-2014
Basıldığı Ülke
Basıldığı Şehir Lecce