Journals / Akademik Gıda / 2019 / Cilt: 17 - Sayı: 4

Identification of Aspergillus section Flavi Species from Peanuts and their Mycotoxigenic Properties

Yerfıstığından İzole Edilen Aspergillus section Flavi Türlerinin Tanımlanması ve Mikotoksijenik Özelliklerinin Belirlenmesi

Pages
450–457
Publication Date
2022-10-11
DOI
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AI Summary & Key Takeaways

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

This research also demonstrated that A. flavus and A. parasiticus were responsible for mycotoxin contamination on peanut samples collected from Adana and Osmaniye provinces.

📌 3 Key Takeaways

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Objective & Hypothesis:This study is aimed to identify 50 A. section Flavi isolates from peanut samples collected in the Adana and Osmaniye provinces of Turkey by using morphological and polymerase chain reaction (PCR), and to determine the in vitro aflatoxin and cyclopyazonic acid formation properties of the isolates.
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Key Findings & Data:In the study, out of a total 50 fungal isolates, 17 were identified as A. parasiticus, and 33 were identified as A. flavus.
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Conclusion & Impact:This research also demonstrated that A. flavus and A. parasiticus were responsible for mycotoxin contamination on peanut samples collected from Adana and Osmaniye provinces.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

This study is aimed to identify 50 A. section Flavi isolates from peanut samples collected in the Adana and Osmaniye provinces of Turkey by using morphological and polymerase chain reaction (PCR), and to determine the in vitro aflatoxin and cyclopyazonic acid formation properties of the isolates. DNA was extracted for the identification of Aspergillus spp., and β-tubulin gene region on DNA was amplified by PCR. Identification of species was determined by comparing the result of sequences which belong to partial β-tubulin of the sequences with known ribosomal sequences using Basic Local Alignment Search Tool (BLAST). In the study, out of a total 50 fungal isolates, 17 were identified as A. parasiticus, and 33 were identified as A. flavus. As a result of Blast analysis of β-tubulin gene sequence comparisons A. flavus and A. parasiticus showed a major similarity in ranges 89-100% and 96-100%, respectively. Furthermore, all of the A. flavus and A. parasiticus isolates were determined as aflatoxin producers in the range from 0.45 to 4521.64 µg/L and 0.22 to 2562.87 µg/L with high-performance liquid chromatography (HPLC) under in vitro conditions, respectively. Total 32 A. flavus isolates produced cyclopiazonic acid in the range between 0.35-8.21 μg/g with thin layer chromatography (TLC). The present study provides a new method on molecular characterization of A. section Flavi on peanut samples collected from the Adana and Osmaniye provinces of Turkey. This research also demonstrated that A. flavus and A. parasiticus were responsible for mycotoxin contamination on peanut samples collected from Adana and Osmaniye provinces.

Özet

Bu çalışmada, Adana ve Osmaniye illerinden toplanan yerfıstığı örneklerinden izole edilmiş 50 Aspergillus sectionFlavi üyesi izolatın morfolojik ve polimeraz zincir reaksiyonu (PZR) yöntemiyle tanımlamaları yapılmıştır. Ayrıca,izolatların in vitro koşullarında aflatoksin ve siklopiazonik asit oluşturma özellikleri belirlenmiştir. Aspergillus spp.tanımlanmasında DNA ekstraksiyonları yapılmış, β-tubulin gen bölgesi ile PZR çoğaltılmıştır. Türlerin tanımlamasındaβ-tubulin gen bölgesine ait sekans sonuçları Blast (Basic Local Alignment Search Tool)’da bilinen ribozamal sekanslarile karşılaştırılmıştır. Çalışmanın sonucunda, fungal izolatların 33’ü Aspergillus flavus, 17’si Aspergillus parasiticusolarak tanımlanmıştır. Blast analizi sonucunda ise A. flavus ve A. parasiticus türüne ait β-tubulin gen sekansıkarşılaştırmaları sırası ile %89-100 ve %96-100 oranları arasında benzerlik göstermiştir. Ayrıca, A. flavus ve A.parasiticus izolatlarının tümü in vitro koşullarında yüksek performanslı sıvı kromatografisi (HPLC) ile sırasıyla 0.45 ile4521.64 µg/L ve 0.22 ile 2562.87 µg/L aralığında aflatoksin üreticisi olduğu belirlenmiştir. İnce tabakakromatografisiyle (TLC) 32 A flavus izolatı 0.35-8.21 μg/g aralığında siklopiazonik asit üretmiştir. Bu çalışma, Adanave Osmaniye illerinden toplanan yerfıstığı örneklerinden izole edilen A. section Flavi'nin moleküler karakterizasyonuiçin yeni bir yöntem sunmaktadır. Ayrıca bu araştırma Adana ve Osmaniye illerinden toplanan yerfıstığı örneklerindenizole edilen A. flavus ve A. parasiticus izolatlarının mikotoksin oluşumundan sorumlu türler olduğunu göstermiştir.

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Cite This Article

LAVKOR, I. (2022). Identification of Aspergillus section Flavi Species from Peanuts and their Mycotoxigenic Properties. Akademik Gıda, Cilt: 17 - Sayı: 4, 450–457. https://ajindex.com/articles/432552

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References (12)

  1. Duran, R.M., Cary, J.W., Calvo, A.M. (2009). The role of veA in Aspergillus flavus infection of peanut, corn and cotton. The Open Mycology Journal, 3(1), 27-36
  2. Kuiper-Goodman, T. (2004). Risk Assessment and Risk Management of Mycotoxins in Food. In: Mycotoxins in Food: Detection and Control, Edited by N. Magan, M. Olsen, Woodhead Publishing Limited, Cambridge, UK, 3-31p
  3. Rao, S.B.N., Chopra, R.C. (2001). Influence of sodium bentonite and activated charcoal on aflatoxin M1 excretion in milk of goats. Small Ruminant Research, 41(3), 203-213
  4. Frisvad, J., Thrane, U., Samson, R., Pitt, J. (2006). Important mycotoxins and the fungi which produce them. Advances in Experimental Medicine and Biology, 571, 3-31
  5. Pushvinder, R., Desai, S. (2006). Variability among isolates of Aspergillus flavus from groundnut for aflatoxin and cyclopiazonic acid production. Journal of Environmental, Agricultural and Food Chemistry, 5(4), 1458-1463
  6. Vaamonde, G., Patriarca, A., Fernandez Pinto, V., Comerio, R., Degrossi, C. (2003). Variability of aflatoxin and cyclopiazonic acid production by Aspergillus section Flavi from different substrates in Argentina. International Journal of Food Microbiology, 88(1), 79-84
  7. Rodrigues, P., Soares, C., Kozakiewicz, Z., Paterson, R.R.M., Lima, N., Venancio, A. (2007). Identification and Characterization of Aspergillus flavus and Aflatoxins. In: Communicating Current Research and Educational Topics and Trends in Applied Microbiology, Edited by A. Mendez-Vilas, Formatex Research Center, Badajoz, Spain, 527- 534p
  8. Pildain, M.B., Frisvad, J.C., Vaamonde, G., Cabral, D., Varga, J., Samson, R.A. (2008). Two novel aflatoxin-producing Aspergillus species from Argentinean peanuts. International Journal of Systematic and Evolutionary, 58(Pt 3), 725-735
  9. Godet, M., Munaut, F. (2010). Molecular strategy for identification in Aspergillus section Flavi. FEMS Microbiology Letters, 304(2), 157-168
  10. Nelson, A.J., Elias, K.S., Arévalo, E.G., Darlington, L.C., Bailey, B.A. (1997). Genetic characterization by RAPD analysis of isolates of Fusarium oxysporum f. sp. associated with an emerging epidemic in Peru. Phytopathology, 87(12), 1220- 1225
  11. Oktay, H.I. (2010). Aspergillus İzolatlarının Tanısı, Bazı Mikotoksijenik Özelliklerinin Belirlenmesi, Sıcaklık ve sürenin İncirde Aflatoksin ve Siklopiazonik Asit Oluşumuna Etkisi. Doktora Tezi, İstanbul Teknik Üniversitesi Fen Bilimleri Enstitüsü, İstanbul, 154s
  12. Gonzalez-S