Molecular identification of fungi trichothecens producing in seeds madder and detection of their nivalenol gene synthesis using PCR

Document Type : Research Article

Authors

• Seyyed Alireza Esmailzadeh Hosseini ¹
• Mahmod Dehghany Ashkezary ²
• Mostafa Abedi Tizaki ¹

¹ Medical Biotechnology Research Center, Ashkezar Branch, Islamic Azad University, Ashkezar, Yazd, Iran

² Islamic Azad University, Ashkezar, Yazd, Iran

10.22067/jpp.v31i3.58227

Abstract

Madder is one of the most important crops that used for medical and industrial applications and is widely cultivated in Yazd province. During 2012, sampling was done form seeds madder in important areas planted in Yazd province, including Bafq and Ardakan. After culturing and purification of fungal isolates in PDA and CLA media, additional identification was performed by PCR with specific primers for each species. Detection of fungi mycotoxins producing potential such as Nivalenol (NIV) using Tri13 primers was done. High-performance liquid chromatography (HPLC) was used to confirm the produce NIV mycotoxins potential in Fusarium species. 249 fungal strains were isolated from madder seed belonging to 6 genera of fungi including Fusarium spp., Aspergillus spp., Penicillium spp., Alternaria spp., Rhizoctonia solani and Rhizpous spp., that Fusarium isolates with 71 percent was the most frequency among fungi isolated. Among Fusarium fungi isolated, F. solani (55 isolates) and F. oxysporum (41 isolates) were the most frequency. F. poae, F. semitectum and F. equiseti ability to produce mycotoxins such as Nivalenol (NIV) that are harmful to human health and animals as well as effect on the quantity and quality of madder color production. Tri13 gene involved in production NIV was detected in three Fusarium species that all isolates produce NIV. The results of HPLC showed that all studied Fusarium fungi, have the potential to produce NIV mycotoxins. The results of this study showed that fungi associated with seeds madder are able to produce trichothecene mycotoxins that they can be dangerous for consumers. Given that, this is the first report of fungi mycotoxins producing on seeds madder in Yazd province, thus should be measures to control and reduce fungal agents in these products.

Keywords

• Mycotoxin
• Rubia tinctorum
• Yazd

20.1001.1.20084749.1396.31.3.12.3

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