Journals / Türk Tarım ve Doğa Bilimleri Dergisi / 2026 / Volume: 13 Issue: 1

Molecular Characterization of Phosphate Solubilizing Fungi Aspergillus niger and Penicillium expansum using the Species-Specific PCR Based Molecular Markers

Muhammed Tatar(SİVAS BİLİM VE TEKNOLOJİ ÜNİVERSİTESİ, TARIM BİLİMLERİ VE TEKNOLOJİLERİ FAKÜLTESİ, BİTKİSEL ÜRETİM VE TEKNOLOJİLERİ BÖLÜMÜ, BİTKİ SAĞLIĞI ANABİLİM DALI)0000-0002-8312-8434
Amjad Ali(SIVAS SCIENCE AND TECHNOLOGY UNIVERSITY)0000-0003-0816-1872
Zemran Mustafa(SIVAS SCIENCE AND TECHNOLOGY UNIVERSITY)0000-0002-1754-6320
Fatih Ölmez(SİVAS BİLİM VE TEKNOLOJİ ÜNİVERSİTESİ, TARIM BİLİMLERİ VE TEKNOLOJİLERİ FAKÜLTESİ, BİTKİ KORUMA BÖLÜMÜ)0000-0001-7016-2708
Tolga Karaköy(SIVAS SCIENCE AND TECHNOLOGY UNIVERSITY)0000-0002-5428-1907
Pages
—
Publication Date
2026-01-22
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AI Summary & Key Takeaways

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

Future work will couple PCR-based genotyping with phosphate-solubilization assays and pathogenicity tests to identify elite biofertilizer candidates while monitoring and managing high-risk postharvest lineages.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:Phosphorus (P) is a vital macronutrient, yet most soil P occurs in insoluble forms, driving intensive use of chemical fertilizers.
📊
Key Findings & Data:A total of 126 fungal isolates (98 putative P. expansum, 28 putative A. niger) were cultured on PDA for macro- and micromorphological assessment and subjected to CTAB-based DNA extraction and PCR with species-specific primers.
💡
Conclusion & Impact:Future work will couple PCR-based genotyping with phosphate-solubilization assays and pathogenicity tests to identify elite biofertilizer candidates while monitoring and managing high-risk postharvest lineages.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:phosphate-solubilizing fungi · Aspergillus niger · Penicillium expansum

Abstract

Phosphorus (P) is a vital macronutrient, yet most soil P occurs in insoluble forms, driving intensive use of chemical fertilizers. Phosphate-solubilizing fungi (PSF), including Aspergillus niger and Penicillium expansum, can enhance P availability but also comprise important postharvest pathogens. This study aimed to characterize apple-associated isolates of both species using morphology and species-specific PCR based markers to provide a basis for future functional screening. A total of 126 fungal isolates (98 putative P. expansum, 28 putative A. niger) were cultured on PDA for macro- and micromorphological assessment and subjected to CTAB-based DNA extraction and PCR with species-specific primers. A. niger formed rapidly growing, granular powdery colonies that darkened to brown–black, with spherical vesicles densely covered by biseriate phialides and rough-walled, dark globose conidia in chains. P. expansum produced moderately fast, velvety colonies that shifted from white to blue–green with concentric rings and showed typical brush-like penicilli with terverticillate branching and smooth, spherical conidia. PCR amplification yielded the expected 404 bp product in 95/98 P. expansum isolates (96.93%) and the 197 bp product in 24/28 A. niger isolates (85.71%), indicating strong concordance between morphological and molecular identification. The integrated morphological-molecular approach reliably resolved apple-associated A. niger and P. expansum populations and establishes a validated genetic resource. Future work will couple PCR-based genotyping with phosphate-solubilization assays and pathogenicity tests to identify elite biofertilizer candidates while monitoring and managing high-risk postharvest lineages.

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Cite This Article

Tatar, M., Ali, A., Mustafa, Z., Ölmez, F., Karaköy, T. (2026). Molecular Characterization of Phosphate Solubilizing Fungi Aspergillus niger and Penicillium expansum using the Species-Specific PCR Based Molecular Markers. Türk Tarım ve Doğa Bilimleri Dergisi, Volume: 13 Issue: 1. https://doi.org/10.30910/turkjans.1841672

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