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Bakla Bitkilerinde Kök Çürüklüğüne Neden Olan Rhizoctonia Türlerinin Anastomosis Grupları ve Patojeniteleri
2022
Journal:  
Iğdır Üniversitesi Fen Bilimleri Enstitüsü Dergisi
Author:  
Abstract:

Bu çalışma, bakla bitkilerinden izole edilen Rhizoctonia spp. izolatlarının patojenitelerini ve anastomosis gruplarını belirlemek amacıyla yürütülmüştür. Bitkilerin kök boğazı ve gövdelerinin alt kısımlarından yapılan izolasyonlar sonucu 43 Rhizoctonia izolatı elde edilmiş ve anastomosis grupları (AG) belirlenmiştir. Bu izolatların %48.8’inin Rhizoctonia solani, %51.2’sinin binükleik Rhizoctonia olduğu saptanmıştır. Elde edilen 21 R. solani izolatının AG-2 (1 izolat), AG-4 (8 izolat) ve AG-5 (12 izolat); 22 binükleik Rhizoctonia izolatının ise AG-K gruplarına ait olduğu saptanmıştır. Seçilen izolatlar ile in vitro şartlarda patojenite denemesi kurulmuş, R. solani ve binükleik Rhizoctonia izolatlarının virülenslik seviyelerinde farklılıklar tespit edilmiştir. R. solani izolatlarının virülenslikleri yüksek olarak bulunurken, binükleik Rhizoctonia izolatlarının virülenslikleri ise zayıf olarak belirlenmiştir. Bu çalışmada elde edilen Rhizoctonia türlerinin anastomosis gruplarının tümü Türkiye’de bakla bitkilerinde ilk defa tespit edilmiştir.

Keywords:

Anastomosis Groups and Pathogenicity Of Rhizoctonia Species Causing Root Rot On Faba Bean Plants
2022
Author:  
Abstract:

This study was conducted to determine anastomosis groups and pathogenicity of Rhizoctonia spp. isolates from faba bean plants. Totally, 43 Rhizoctonia isolates were obtained from root crown and/or basal stems of plants and their anastomosis groups (AGs) were identified. Of these isolates, 48.8% were Rhizoctonia solani, and 51.2% were binucleic Rhizoctonia. Twenty one R. solani isolates were identified as AG-2 (1 isolate), AG-4 (8 isolates) and AG-5 (12 isolates); 22 binucleic Rhizoctonia isolates were identified as AG-K. Pathogenicity experiment was conducted with the selected isolates under in vitro conditions, and it was found that differences in virulence levels between R. solani and binucleate Rhizoctonia isolates. While isolates of R. solani were found to be highly virulent, binucleate Rhizoctonia isolates were determined as weakly virulent. All of the anastomosis groups of Rhizoctonia species obtained in this study were determined for the first time on faba bean plants in Turkey.

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Iğdır Üniversitesi Fen Bilimleri Enstitüsü Dergisi

Journal Type :   Uluslararası

Metrics
Article : 2.053
Cite : 3.843
2023 Impact : 0.187
Iğdır Üniversitesi Fen Bilimleri Enstitüsü Dergisi