2007, Turkish(Türkçe), Thesis edition: DETERMINATION OF THE FUNGAL FLORA AND THEIR ANTAGONISTIC INTERACTIONS IN IN-VITRO IN FOREST SOILS COVERED BY CRIMEAN PINE, IN ELDIVAN TOWN, IN ÇANKIRI BOROUGH(ÇANKIRI İLİ ELDİVAN İLÇESİ KARAÇAM ORMANI TOPRAKLARINDAKİ FUNGAL FLORANIN VE İN-VİTRO’DA ANTAGONİSTİK ETKİLEŞİMLERİNİN BELİRLENMESİ) DUYAR, İZZET

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Bookmark: http://trove.nla.gov.au/version/33186895
Physical Description
  • Thesis(Tez)
Published
  • 2007-01-01
Language
  • Turkish(Türkçe)

Edition details

Title
  • DETERMINATION OF THE FUNGAL FLORA AND THEIR ANTAGONISTIC INTERACTIONS IN IN-VITRO IN FOREST SOILS COVERED BY CRIMEAN PINE, IN ELDIVAN TOWN, IN ÇANKIRI BOROUGH(ÇANKIRI İLİ ELDİVAN İLÇESİ KARAÇAM ORMANI TOPRAKLARINDAKİ FUNGAL FLORANIN VE İN-VİTRO’DA ANTAGONİSTİK ETKİLEŞİMLERİNİN BELİRLENMESİ)
Author
  • DUYAR, İZZET
Other Authors
  • ŞİMŞEK, ZİYA
  • OSKAY, FUNDA
Published
  • 2007-01-01
Physical Description
  • Thesis(Tez)
Notes
  • This study was carried out in order to determine the microfungal flora of the Crimean pine forest soils in the vicinity of Eldivan (Çankırı) and the antagonistic interactions between the components of this mycoflora. In this study, the isolation of the microfungi from the soil samples into culture media was performed via “soil dilution plate method” and the investigation of the antagonistic interactions between fungal isolates was carried out by the “fungal disc technique”. After the identification of the isolates, 71 species and varieties (taxa) and 9 different steril mikrofungi were found. Qualitative and quantitative distributions of the genus Penicillium were higher than those of the other genera. The most common species were respectively, Penicillium glabrum (Wehmer)Westling (%4,11), P. decumbens Thom (%3,06), Clonostachys rosea f. rosea (Link) Schroers), Samuels, Seifert &​ W.Gams (Syn: Gliocladium roseum) (%2,95), P. sp.2 (%2,95), Trichoderma harzianum Rifai (%2,95), Engyodontium album (Limber) de Hoog (%2,85), Thysanophora penicillioides W.B. Kendr (%2,75), P. chrysogenum var. chrysogenum Thom (%2,63). The average number of colony forming units equivalent to one gram of oven-dried soil of the study area soils were 62,986 CFU/​g. With respect to the investigations based upon the fungal inhibition tests, in which the in vitro antagonistic activity of 11 antagonistic fungal isolates against 7 indicator fungal isolates chosen among the fungi isolated from Crimean pine forest soils were assayed on PDA medium via dual cultures, it was found that all isolates of Trichoderma were relatively effective against indicator fungal isolates, with the inhibition percents above 69%. On the other hand, Penicillium (Pc, Pd, Pf), Trichothecium roseum Link and Ulocladium atrum Preuss isolates used as antagonistic organism against the same indicators were not as efficient as Trichoderma isolates. Among the Trichoderma isolates, T3 found to be the most successful antagonist against all indicators tested. Besides, T9 isolate has exhibited the greatest inhibition percentage of 92% against the Fusarium isolate F3, whereas T2 isolate has showed no efficiency against this isolate. (Bu çalışma, Çankırı ili Eldivan ilçesi karaçam orman topraklarının mikrofungal florasının ve bu mikoflorayı oluşturan funguslar arasındaki antagonistik etkileşimlerin belirlemesi amacıyla yürütülmüştür. Çalışmada, topraklardan mikrofungusların izole edilmesinde “Toprağı Sulandırma” yöntemi, fungal izolatlar arasındaki antagonistik etkileşimlerin belirlenmesinde ise “Fungal Disk Tekniği” kullanılmıştır. Bu çalışmada, 15 toprak örneğinin toprağı sulandırma yöntemiyle incelenmesi sonucunda, 71 ayrı tür ve varyete, ayrıca 9 adet farklı steril mikrofungi teşhis edilmiştir. En yaygın tür ve varyeteler sırasıyla, Penicillium glabrum (Wehmer)Westling (%4,11), P. decumbens Thom (%3,06), Clonostachys rosea f. rosea (Link) Schroers Samuels, Seifert &​ W.Gams (Syn: Gliocladium roseum) (%2,95), P. sp.2 (%2,95), Trichoderma harzianum Rifai (%2,95), Engyodontium album (Limber) de Hoog (%2,85), Thysanophora penicillioides W.B. Kendr (%2,75), P. chrysogenum var. chrysogenum Thom (%2,63)’dur. Sayım sonuçlarına göre 1 gram fırın kurusu toprağa karşılık gelen taze toprakta ortalama 62,986 (CFU/​g) birim mikrofungus tespit edilmiştir. Antagonistik etkileşimlerin in vitro koşullarda belirlenmesinde, araştırma alanı topraklarından izole edilen fungal izolatlar arsından seçilen, 11 antagonistik fungal izolatın,7 indikatör fungal izolata karşı PDA besiyerinde, ikili ekimlerle test edildiği fungal inhibisyon testlerine göre, indikatör funguslara karşı test edilen tüm Trichoderma izolatları %69 üzerindeki engelleme yüzdeleri ile göreceli olarak etkili bulunmuştur. Bununla birlikte, Penicillium (Pc, Pd, Pf), ile Trichothecium roseum (Tr) ve Ulocladium atrum (U) izolatlarının fungal inhibisyon testlerinde söz konusu indikatör funguslara karşı Trichoderma izolatları kadar etkili olamamışlardır. Trichoderma izolatları arasından, en fazla sayıda indikatöre karşı antagonistik etkiye sahip olan fungusun T. harzianum’a ait T3 izolatı olduğu görülmüştür. Ayrıca, T. harzianum’a ait T9 izolatı Fusarium sp.3’e ait F3 izolatına karşı gösterdiği %92 inhibisyon değeri ile tüm antagonistler arasında en yüksek engelleme değerine sahipken, T. atroviride’ye ait T2 izolatının F3 izolatına karşı hiçbir engelleme gösteremediği görülmüştür. )
Language
  • Turkish(Türkçe)
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