Please use this identifier to cite or link to this item: http://hdl.handle.net/10174/36730

Title: A TaqMan® assay allows an accurate detection and quantification of Fusarium spp., the causal agents of tomato wilt and rot diseases.
Authors: Campos, Maria Doroteia
Varanda, Carla
Materatski, Patrick
Patanita, Mariana
Ribeiro, Joana Amaro
Albuquerque, André
Campos, Catarina
Félix, Maria do Rosário
Keywords: Solanum lycopersicum
Fusarium diseases detection
TaqMan® probe assay
qPCR
Issue Date: 2023
Publisher: MDPI
Citation: Campos MD, Varanda C, Patanita M, Amaro Ribeiro J, Campos C, Materatski P, Albuquerque A, Félix MR. (2023). A TaqMan® assay allows an accurate detection and quantification of Fusarium spp., the causal agents of tomato wilt and rot diseases. Biology. 12(2):268. https://doi.org/10.3390/biology12020268
Abstract: In tomato plants, Fusarium spp. have been increasingly associated with several wilt and rot diseases that are responsible for severe yield losses. Here, we present a real-time PCR TaqMan® MGB (Minor Groove Binder) assay to detect and discriminate Fusarium spp. from other fungal species that affect tomato plants. The methodology used is based on the selective amplification of the internal transcribed spacer (ITS) region of Fusarium spp. This assay revealed to be highly specific and sensitive for Fusarium species, targeting only the 29 Fusarium isolates from the 45 tested isolates associated to tomato diseases. Sensitivity was assessed with serial dilutions of Fusarium genomic DNA, with the limit of detection of 3.05 pg. An absolute DNA quantification method was also established, based on the determination of the absolute number of target copies. Finally, the effectiveness of the assay was successfully validated with the detection and quantification of Fusarium spp. in potentially infected tomato plants from an experimental field and in control plants grown under controlled conditions. The established methodology allows a reliable, sensitive, and reproducible estimation of Fusarium accumulation in infected tomato plants, gaining new insights for disease control and providing an additional tool in the screening of resistant plants.
URI: https://doi.org/10.3390/biology12020268
http://hdl.handle.net/10174/36730
Type: article
Appears in Collections:FIT - Publicações - Artigos em Revistas Internacionais Com Arbitragem Científica

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