Genetic diversity and pathogenicity on root seedlings from three soybean cultivars of Fusarium graminearum isolated from maize crop residues

Crops residues are an important source of maintenance of Fusarium graminearum inoculum in the soybean agroecosystem. Given that these populations can interact in the substrate through mechanisms of mycelial recognition and that they can come into direct contact with the implanted seed and cause dise...

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Autores principales: Bonacci, Martín, Barros, Germán
Formato: article Artículo publishedVersion
Lenguaje:Inglés
Publicado: Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias 2019
Materias:
Acceso en línea:http://bdigital.uncu.edu.ar/13657
Aporte de:
id I11-R813657
record_format dspace
institution Universidad Nacional de Cuyo
institution_str I-11
repository_str R-8
collection Biblioteca Digital
language Inglés
orig_language_str_mv eng
topic Diversidad genética
Patogenicidad
Plántulas
Soja
Gibberella zeae
Fusarium graminearum
Rastrojo
Fungicidas
Población vegetal
Métodos estadísticos
Crop residues
Soybean
Fungicide
Pathogenicity
Mycelial compatibility
Compatibilidad micelial
Rastrojos de maíz
Fungicida curasemilla
spellingShingle Diversidad genética
Patogenicidad
Plántulas
Soja
Gibberella zeae
Fusarium graminearum
Rastrojo
Fungicidas
Población vegetal
Métodos estadísticos
Crop residues
Soybean
Fungicide
Pathogenicity
Mycelial compatibility
Compatibilidad micelial
Rastrojos de maíz
Fungicida curasemilla
Bonacci, Martín
Barros, Germán
Genetic diversity and pathogenicity on root seedlings from three soybean cultivars of Fusarium graminearum isolated from maize crop residues
topic_facet Diversidad genética
Patogenicidad
Plántulas
Soja
Gibberella zeae
Fusarium graminearum
Rastrojo
Fungicidas
Población vegetal
Métodos estadísticos
Crop residues
Soybean
Fungicide
Pathogenicity
Mycelial compatibility
Compatibilidad micelial
Rastrojos de maíz
Fungicida curasemilla
description Crops residues are an important source of maintenance of Fusarium graminearum inoculum in the soybean agroecosystem. Given that these populations can interact in the substrate through mechanisms of mycelial recognition and that they can come into direct contact with the implanted seed and cause disease, the following objectives were set: (1) to evaluate the genetic diversity through of the mycelial compatibility of F. graminearum strains isolated from maize crop residues; (2) to analyze the pathogenicity of F. graminearum strains isolated from crop residues towards soybean seedlings from different cultivars treated and untreated with fungicide. Mycelial compatibility studies showed a unique pattern of mycelial compatibility for each strain, indicating a great heterogeneity in the population evaluated. Pathogenicity tests in all strains tested were capable of causing symptoms of root rot with varying degrees of severity and reductions in the height of seedlings. In the factorial statistical analysis, the greatest effect was marked by the soybean cultivar effect. A clear decline in the severity index was also observed with the fungicide application, so this would be a useful prevention tool to reduce the intensity in soybean seedling diseases.
format article
Artículo
Artículo
publishedVersion
author Bonacci, Martín
Barros, Germán
author_facet Bonacci, Martín
Barros, Germán
author_sort Bonacci, Martín
title Genetic diversity and pathogenicity on root seedlings from three soybean cultivars of Fusarium graminearum isolated from maize crop residues
title_short Genetic diversity and pathogenicity on root seedlings from three soybean cultivars of Fusarium graminearum isolated from maize crop residues
title_full Genetic diversity and pathogenicity on root seedlings from three soybean cultivars of Fusarium graminearum isolated from maize crop residues
title_fullStr Genetic diversity and pathogenicity on root seedlings from three soybean cultivars of Fusarium graminearum isolated from maize crop residues
title_full_unstemmed Genetic diversity and pathogenicity on root seedlings from three soybean cultivars of Fusarium graminearum isolated from maize crop residues
title_sort genetic diversity and pathogenicity on root seedlings from three soybean cultivars of fusarium graminearum isolated from maize crop residues
publisher Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias
publishDate 2019
url http://bdigital.uncu.edu.ar/13657
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AT barrosgerman geneticdiversityandpathogenicityonrootseedlingsfromthreesoybeancultivarsoffusariumgraminearumisolatedfrommaizecropresidues
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