Rapid molecular assay for the evaluation of clove essential oil antifungal activity against wheat common bunt

Common bunt of durum wheat (DW), Triticum turgidum L. ssp. durum (Desf.) Husn., is caused by the two closely related fungal species belonging to Tilletia genus (Tilletiales, Exobasidiomycetes, Ustilaginomycotina): Tilletia laevis Kühn (syn. T. foetida (Wallr.) Liro.) and T. caries (DC) Tul. (syn. T....

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Main Authors: Maria Teresa Valente, Laura Orzali, Giuliano Manetti, Francesco Magnanimi, Antonio Matere, Valentino Bergamaschi, Alessandro Grottoli, Sara Bechini, Luca Riccioni, Maria Aragona
Format: Article
Language:English
Published: Frontiers Media S.A. 2023-06-01
Series:Frontiers in Plant Science
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fpls.2023.1130793/full
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author Maria Teresa Valente
Laura Orzali
Giuliano Manetti
Giuliano Manetti
Francesco Magnanimi
Francesco Magnanimi
Antonio Matere
Valentino Bergamaschi
Valentino Bergamaschi
Alessandro Grottoli
Sara Bechini
Luca Riccioni
Maria Aragona
author_facet Maria Teresa Valente
Laura Orzali
Giuliano Manetti
Giuliano Manetti
Francesco Magnanimi
Francesco Magnanimi
Antonio Matere
Valentino Bergamaschi
Valentino Bergamaschi
Alessandro Grottoli
Sara Bechini
Luca Riccioni
Maria Aragona
author_sort Maria Teresa Valente
collection DOAJ
description Common bunt of durum wheat (DW), Triticum turgidum L. ssp. durum (Desf.) Husn., is caused by the two closely related fungal species belonging to Tilletia genus (Tilletiales, Exobasidiomycetes, Ustilaginomycotina): Tilletia laevis Kühn (syn. T. foetida (Wallr.) Liro.) and T. caries (DC) Tul. (syn. T. tritici (Bjerk.) G. Winter). This is one of the most devastating diseases in wheat growing areas worldwide, causing considerable yield loss and reduction of wheat grains and flour quality. For these reasons, a fast, specific, sensitive, and cost-effective method for an early diagnosis of common bunt in wheat seedlings is urgent. Several molecular and serological methods were developed for diagnosis of common bunt in wheat seedlings but at late phenological stages (inflorescence) or based on conventional PCR amplification, with low sensitivity. In this study, a TaqMan Real Time PCR-based assay was developed for rapid diagnosis and quantification of T. laevis in young wheat seedlings, before tillering stage. This method, along with phenotypic analysis, was used to study conditions favoring pathogen infection and to evaluate the effectiveness of clove oil-based seed dressing in controlling the disease. The overall results showed that: i) the Real Time PCR assay was able to quantify T. laevis in young wheat seedlings after seed dressing by clove oil in different formulations, greatly reducing times of analysis. It showed high sensitivity, detecting up to 10 fg of pathogen DNA, specificity and robustness, allowing to directly analyze crude plant extracts and representing a useful tool to speed up the tests of genetic breeding for disease resistance; ii) temperature was a critical point for disease development when using wheat seeds contaminated by T. laevis spores; iii) at least one of the clove oil-based formulations tested was able to efficiently control wheat common bunt, suggesting that clove oil dressing could represent a promising tool for managing the disease, especially in sustainable farming.
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spelling doaj.art-a93e99b5c4fe4c60a3c502a11b148d7c2023-06-05T05:21:53ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2023-06-011410.3389/fpls.2023.11307931130793Rapid molecular assay for the evaluation of clove essential oil antifungal activity against wheat common buntMaria Teresa Valente0Laura Orzali1Giuliano Manetti2Giuliano Manetti3Francesco Magnanimi4Francesco Magnanimi5Antonio Matere6Valentino Bergamaschi7Valentino Bergamaschi8Alessandro Grottoli9Sara Bechini10Luca Riccioni11Maria Aragona12Council for Agricultural Research and Economics (CREA), Research Centre for Plant Protection and Certification (CREA-DC), Rome, ItalyCouncil for Agricultural Research and Economics (CREA), Research Centre for Plant Protection and Certification (CREA-DC), Rome, ItalyCouncil for Agricultural Research and Economics (CREA), Research Centre for Plant Protection and Certification (CREA-DC), Rome, ItalyDepartment of Environmental Biology, Sapienza University of Rome, Rome, ItalyCouncil for Agricultural Research and Economics (CREA), Research Centre for Plant Protection and Certification (CREA-DC), Rome, ItalyDepartment of Biology and Biotechnology “Charles Darwin”, Sapienza University of Rome, Rome, ItalyCouncil for Agricultural Research and Economics (CREA), Research Centre for Plant Protection and Certification (CREA-DC), Rome, ItalyCouncil for Agricultural Research and Economics (CREA), Research Centre for Plant Protection and Certification (CREA-DC), Rome, ItalyDepartment of Environmental Biology, Sapienza University of Rome, Rome, ItalyCouncil for Agricultural Research and Economics (CREA), Research Centre for Plant Protection and Certification (CREA-DC), Rome, ItalyCouncil for Agricultural Research and Economics (CREA), Research Centre for Plant Protection and Certification (CREA-DC), Rome, ItalyCouncil for Agricultural Research and Economics (CREA), Research Centre for Plant Protection and Certification (CREA-DC), Rome, ItalyCouncil for Agricultural Research and Economics (CREA), Research Centre for Plant Protection and Certification (CREA-DC), Rome, ItalyCommon bunt of durum wheat (DW), Triticum turgidum L. ssp. durum (Desf.) Husn., is caused by the two closely related fungal species belonging to Tilletia genus (Tilletiales, Exobasidiomycetes, Ustilaginomycotina): Tilletia laevis Kühn (syn. T. foetida (Wallr.) Liro.) and T. caries (DC) Tul. (syn. T. tritici (Bjerk.) G. Winter). This is one of the most devastating diseases in wheat growing areas worldwide, causing considerable yield loss and reduction of wheat grains and flour quality. For these reasons, a fast, specific, sensitive, and cost-effective method for an early diagnosis of common bunt in wheat seedlings is urgent. Several molecular and serological methods were developed for diagnosis of common bunt in wheat seedlings but at late phenological stages (inflorescence) or based on conventional PCR amplification, with low sensitivity. In this study, a TaqMan Real Time PCR-based assay was developed for rapid diagnosis and quantification of T. laevis in young wheat seedlings, before tillering stage. This method, along with phenotypic analysis, was used to study conditions favoring pathogen infection and to evaluate the effectiveness of clove oil-based seed dressing in controlling the disease. The overall results showed that: i) the Real Time PCR assay was able to quantify T. laevis in young wheat seedlings after seed dressing by clove oil in different formulations, greatly reducing times of analysis. It showed high sensitivity, detecting up to 10 fg of pathogen DNA, specificity and robustness, allowing to directly analyze crude plant extracts and representing a useful tool to speed up the tests of genetic breeding for disease resistance; ii) temperature was a critical point for disease development when using wheat seeds contaminated by T. laevis spores; iii) at least one of the clove oil-based formulations tested was able to efficiently control wheat common bunt, suggesting that clove oil dressing could represent a promising tool for managing the disease, especially in sustainable farming. https://www.frontiersin.org/articles/10.3389/fpls.2023.1130793/fullTilletia laeviswheat common buntseed borne diseasereal time PCRseed dressingclove oil
spellingShingle Maria Teresa Valente
Laura Orzali
Giuliano Manetti
Giuliano Manetti
Francesco Magnanimi
Francesco Magnanimi
Antonio Matere
Valentino Bergamaschi
Valentino Bergamaschi
Alessandro Grottoli
Sara Bechini
Luca Riccioni
Maria Aragona
Rapid molecular assay for the evaluation of clove essential oil antifungal activity against wheat common bunt
Frontiers in Plant Science
Tilletia laevis
wheat common bunt
seed borne disease
real time PCR
seed dressing
clove oil
title Rapid molecular assay for the evaluation of clove essential oil antifungal activity against wheat common bunt
title_full Rapid molecular assay for the evaluation of clove essential oil antifungal activity against wheat common bunt
title_fullStr Rapid molecular assay for the evaluation of clove essential oil antifungal activity against wheat common bunt
title_full_unstemmed Rapid molecular assay for the evaluation of clove essential oil antifungal activity against wheat common bunt
title_short Rapid molecular assay for the evaluation of clove essential oil antifungal activity against wheat common bunt
title_sort rapid molecular assay for the evaluation of clove essential oil antifungal activity against wheat common bunt
topic Tilletia laevis
wheat common bunt
seed borne disease
real time PCR
seed dressing
clove oil
url https://www.frontiersin.org/articles/10.3389/fpls.2023.1130793/full
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