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Journals / International Journal of Agriculture Forestry and Life Sciences / 2026 / Volume: 10 Issue: 1

Effect of Arthrobacter sp. Tg40 on Defense Gene Expression and Disease Severity in Pepper Infected with Rhizoctonia solani

Filiz Ünal(ESKİŞEHİR OSMANGAZİ ÜNİVERSİTESİ, ZİRAAT FAKÜLTESİ)0000-0003-4620-5397
Döndü Gül Alakuş(ESKİŞEHİR OSMANGAZİ ÜNİVERSİTESİ, ZİRAAT FAKÜLTESİ)0009-0000-7197-1814
Öykü Divrik(ESKİŞEHİR OSMANGAZİ ÜNİVERSİTESİ, ZİRAAT FAKÜLTESİ)0009-0009-3844-7557
Hazal Sipahi(ESKİŞEHİR OSMANGAZİ ÜNİVERSİTESİ, ZİRAAT FAKÜLTESİ)0009-0002-3261-5248
Samet Şahin(ESKİŞEHİR OSMANGAZİ ÜNİVERSİTESİ, ZİRAAT FAKÜLTESİ)0009-0008-2913-6717
Pages
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Publication Date
2026-06-15
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

The results suggest that this bacterial strain may contribute to plant protection by both reducing disease severity and modulating defense-related gene expression.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:This study evaluated the biocontrol potential of Arthrobacter sp.
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Key Findings & Data:Tg40 against Rhizoctonia solani in pepper plants and its influence on plant defense responses.
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Conclusion & Impact:The results suggest that this bacterial strain may contribute to plant protection by both reducing disease severity and modulating defense-related gene expression.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Arthrobacter sp. Tg40 · Rhizoctonia solani · pepper

Abstract

This study evaluated the biocontrol potential of Arthrobacter sp. Tg40 against Rhizoctonia solani in pepper plants and its influence on plant defense responses. The expression of selected defense-related genes (JERF3, POD, PR, and chitinase) was analyzed at 12, 24, 56, and 68 h using quantitative real-time PCR. Expression patterns differed across treatments and sampling times, indicating dynamic regulation of plant defense mechanisms. In particular, combined application of R. solani and Arthrobacter sp. Tg40 resulted in enhanced expression of several defense-related genes compared to individual treatments. In addition, disease severity assessments demonstrated that Arthrobacter sp. Tg40 significantly suppressed disease development caused by R. solani. The results suggest that this bacterial strain may contribute to plant protection by both reducing disease severity and modulating defense-related gene expression. These results support the potential application of Arthrobacter sp. Tg40 as a sustainable strategy for managing soil-borne diseases in pepper production systems..

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Cite This Article

Ünal, F., Alakuş, D. G., Divrik, Ö., Sipahi, H., Şahin, S. (2026). Effect of Arthrobacter sp. Tg40 on Defense Gene Expression and Disease Severity in Pepper Infected with Rhizoctonia solani. International Journal of Agriculture Forestry and Life Sciences, Volume: 10 Issue: 1. https://doi.org/10.66598/ijafls.1940370

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