Bacillus amyloliquefaciens N33’ün Biyokontrolde Kullanım Potansiyelinin Ortaya Çıkarılması

Yıl 2025, Cilt: 10 Sayı: 4, 360 - 365, 31.07.2025

Sevda Uçar , Şeyma Alım , Neslihan Dikbaş , Kağan Kökten

https://doi.org/10.35229/jaes.1689328

Öz

Bitki hastalıklarının kontrolünde ve hasat sonrası meyve, sebze ve tahılların muhafazasında sentetik kimyasallar yerine biyokontrol ajanlarının kullanımı, sayısız avantajları göz önüne alındığında büyük bir ivme kazanmıştır. Mevcut çalışmada maruldan izole edilen Bacillus amiyloliquefaciens N33 suşunun Penicillium citrinum, P. expansum, P. verrucosum, P. digitatum, P. paneum, Fusarium graminearum ve Aspergillus fumigatus’a karşı antifungal etkinliği in vitro olarak test edilmiştir. Suş test edilen tüm funguslara karşı yüksek bir etkinlik göstermiş ve inhibisyon oranı %60,3-94,2 aralığında değişmiştir. En yüksek etkinlik meyvelerde hasat sonrası önemli kayıplara neden olan P. digitatum (%94,2) ve P. expansum’a (%82,5) karşı görülmüştür. Ayrıca N33 F. graminearum, P. digitatum, P. expansum ve P. paneum’a karşı sentetik fungusitten daha yüksek bir etkinlik göstermiştir. Elde edilen bulgular B. amiyloliquefaciens N33’ün farklı fungus türlerine karşı geniş spektrumlu bir biyolojik mücadele etmeni olabileceğini göstermektedir.

Anahtar Kelimeler

Aspergillus , Bacillus , Biokontrol , Fusarium , Penicillium

Exploring the Potential of Bacillus amyloliquefaciens N33 in Biocontrol

Öz

The use of biocontrol agents instead of synthetic chemicals in the control of plant diseases and post-harvest preservation of fruits, vegetables and cereals has gained great momentum given their numerous advantages. In the present study, the antifungal activity of Bacillus amiyloliquefaciens N33 strain isolated from lettuce was tested in vitro against Penicillium citrinum, P. expansum, P. verrucosum, P. digitatum, P. paneum, Fusarium graminearum and Aspergillus fumigatus. The strain showed a high activity against all tested fungi and the inhibition rate ranged between 60.3-94.2%. The highest activity was observed against P. digitatum (94.2%) and P. expansum (82.5%), which caused significant postharvest losses in fruits. In addition, N33 showed a higher activity against F. graminearum, P. digitatum, P. expansum and P. paneum than the synthetic fungicide. The findings indicate that B. amiyloliquefaciens N33 can be a broad spectrum biological control agent against different fungal species.

Anahtar Kelimeler

Aspergillus , Bacillus , Biocontrol , Fusarium , Penicillium

Kaynakça

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