Konya İlinde Yetiştirilen Patates Yumrularında Lastik Çürüklük Hastalık Etmeni Geotrichum candidum’un İzolasyonu, Morfolojik ve Moleküler Karakterizasyonu

Soner Soylu; Merve Kara; Osman Toketti; Emine Mine Soylu; Aysun Uysal; Şener Kurt

doi:10.18016/ksutarimdoga.vi.714056

EN TR

Isolation, Morphological and Molecular Characterization of Rubbery Rot Disease Disease Agent Geotrichum candidum on Potato Tubers Grown in Konya Province

Abstract

Potato is the one of the most consumed vegetable in Turkey. During field surveys in June of 2019, new disease symptoms on potato tubers, displaying a water-soaked soft rubbery rot with a sour, fermented smell, and white mycelial growth, were observed in commercial fields in Çumra district of Konya, Turkey. Diseased tubers were collected and small tissue pieces from surface disinfected symptomatic tuber were placed on potato dextrose agar (PDA) and incubated at 25°C. Fast growing, flat, white to cream, dry and finely suede-like with no reverse pigmented fungal colonies were subsequently developed from infected tissues. Hyphae were hyaline, dichotomously branched and septate, producing aerial chains of hyaline, smooth, one-celled, cylindrical arthroconidia. Cultural and morphological characters were consistent with Geotrichum candidum. All artificially inoculated tubers displayed the same symptoms as seen for naturally infected tubers and the fungus having same morphological characters was re-isolated from inoculated tubers. Morphological identification of disease agent was confirmed molecularly based on protein profiling by using MALDI-TOF MS and also by sequencing amplified Internal Transcribed Spacer (ITS) region ((ITS1-5.8S rDNA-ITS4). The sequence was 99% identical and a representative sequence of isolate was submitted to GenBank. The presence of potato rubbery rot disease caused by G. candidum has not been previously reported in Turkey. This is the first report of morphological and molecular characterization of G. candidum causal disease agent of rubber rot on potato tubers grown in Turkey.

Keywords

Konya İlinde Yetiştirilen Patates Yumrularında Lastik Çürüklük Hastalık Etmeni Geotrichum candidum’un İzolasyonu, Morfolojik ve Moleküler Karakterizasyonu

Öz

Patates (Solanum tuberosum L.), Türkiye’de en fazla tüketilen sebzelerin başında gelmektedir. Konya ilinin Çumra ilçesinde 2019 yılının Temmuz ayında patates yetiştirilen alanlarda gerçekleştirilen sörveyler sırasında ekşi koku yayan patates yumrularında beyaz miselyum ile kaplanmış suya batırılmış yumuşak lastik çürüklük lezyonları şeklinde yeni hastalık belirtileri gözlenmiştir. Yüzey dezenfeksiyonu yapılan enfekteli yumrulardan alınan dokular Patates Dekstroz Agar (PDA) besiyeri üzerine yerleştirilmiş ve 25°C’de inkübasyona bırakılmıştır. Enfekteli dokulardan hızlı büyüyen beyaz, düz ve süetimsi-tozlu görünümlü pigmentsiz fungal koloniler gelişmiştir. Gelişen kolonilerin miselyumları dichotomous olarak dallanmış, şeffaf ve bölmeli yapıda olup, hiflerden oldukça farklı boyutlarda şeffaf, tek hücreli ve silindirik yapıda havai artrokonidilerin geliştiği gözlenmiştir. Fungal etmenin kültürel ve morfolojik özellikleri Geotrichum candidum ile tutarlıdır. Yapay inokulasyon yapılan patates yumruları üzerinde doğal enfekteli patates yumrularında görülen belirtilerin benzeri gözlenmiş olup fungal etmen bu dokulardan yeniden izole edilmiştir. İzole edilen fungal etmenin morfolojik tanısı, Matrix Assisted Laser Desorption Ionization-Time of Flight Mass Spectrometry (MALDI-TOF MS) cihazı kullanarak protein profili ve Internal Transcribed Spacer (ITS) gen bölgesi (ITS1-5.8S rDNA-ITS4) çoğaltılıp dizilenmesi ile moleküler olarak da teyit edilmiştir. Gen bankasına kaydedilen temsili izolatın sekans sonucu G. candidum izolatı ile %99 oranında benzerlik göstermiştir. G. candidum’un sebep olduğu patates lastik çürüklük hastalığının varlığı Türkiye’de önceden bildirilmemiştir. Türkiye’de yetiştirilen patates yumrularında lastik çürüklüğü hastalığı etmeni G. candidum’un morfolojik ve moleküler karakterizasyonu ilk kez bu çalışma ile ortaya konulmuştur.

Anahtar Kelimeler

Supporting Institution

Hatay Mustafa Kemal Üniversitesi Bilimsel Araştırma Projeleri Komisyonu Başkanlığı

Project Number

MKU BAP-18.YL.081

Thanks

Bu çalışma Osman TOKETTİ’nin yüksek lisans çalışmasının bir kısmını kapsamakta olup, Hatay Mustafa Kemal Üniversitesi Bilimsel Araştırma Projeleri Komisyonu Başkanlığı tarafından finansal olarak desteklenmiştir (Proje Numarası: MKU BAP-18.YL.081)

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Details

Primary Language

Turkish

Subjects

Agricultural, Veterinary and Food Sciences

Journal Section

Research Article

Authors

Soner Soylu ^*
0000-0003-1002-8958
Türkiye

Merve Kara
0000-0001-7320-3376
Türkiye

Osman Toketti
0000-0001-8955-2132
Türkiye

Emine Mine Soylu
0000-0001-5961-0848
Türkiye

Aysun Uysal
0000-0002-9067-285X
Türkiye

Şener Kurt
0000-0003-4545-5968
Türkiye

Publication Date

April 30, 2021

Submission Date

April 3, 2020

Acceptance Date

August 13, 2020

Published in Issue

Year 2021 Volume: 24 Number: 2

DOI

https://doi.org/10.18016/ksutarimdoga.vi.714056

IZ

https://izlik.org/JA63FA58BC

Cite

RIS / Bibtex

APA

Soylu, S., Kara, M., Toketti, O., Soylu, E. M., Uysal, A., & Kurt, Ş. (2021). Konya İlinde Yetiştirilen Patates Yumrularında Lastik Çürüklük Hastalık Etmeni Geotrichum candidum’un İzolasyonu, Morfolojik ve Moleküler Karakterizasyonu. Kahramanmaraş Sütçü İmam Üniversitesi Tarım Ve Doğa Dergisi, 24(2), 353-361. https://doi.org/10.18016/ksutarimdoga.vi.714056