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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Facultad de Ciencias Agrarias-UNCuyo
2019
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| Acceso en línea: | https://revistas.uncu.edu.ar/ojs3/index.php/RFCA/article/view/2356 |
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I11-R107article-23562019-12-18T16:20:16Z Genetic diversity and pathogenicity on root seedlings from three soybean cultivars of Fusarium graminearum isolated from maize crop residues Genetic diversity and pathogenicity on root seedlings from three soybean cultivars of Fusarium graminearum isolated from maize crop residues Bonacci, Martín Barros, German Fusarium graminearum rastrojos soja fungicida patogenicidad compatibilidad micelial Fusarium graminearum crop residues soybean fungicide pathogenicity mycelial compatibility 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. 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. Facultad de Ciencias Agrarias-UNCuyo 2019-06-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf text/html https://revistas.uncu.edu.ar/ojs3/index.php/RFCA/article/view/2356 Revista de la Facultad de Ciencias Agrarias UNCuyo; Vol. 51 No. 1 (2019): January-June; 147-160 Revista de la Facultad de Ciencias Agrarias UNCuyo; Vol. 51 Núm. 1 (2019): Enero-Junio; 147-160 1853-8665 0370-4661 eng https://revistas.uncu.edu.ar/ojs3/index.php/RFCA/article/view/2356/1725 https://revistas.uncu.edu.ar/ojs3/index.php/RFCA/article/view/2356/1726 |
| institution |
Universidad Nacional de Cuyo |
| building |
Revistas en línea |
| filtrotop_str |
Revistas en línea |
| collection |
Revista de la Facultad de Ciencias Agrarias |
| journal_title_str |
Revista de la Facultad de Ciencias Agrarias |
| institution_str |
I-11 |
| repository_str |
R-107 |
| language |
eng |
| format |
Online |
| author |
Bonacci, Martín Barros, German |
| spellingShingle |
Bonacci, Martín Barros, German Genetic diversity and pathogenicity on root seedlings from three soybean cultivars of Fusarium graminearum isolated from maize crop residues Fusarium graminearum rastrojos soja fungicida patogenicidad compatibilidad micelial Fusarium graminearum crop residues soybean fungicide pathogenicity mycelial compatibility |
| author_facet |
Bonacci, Martín Barros, German |
| 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 |
| 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. |
| publisher |
Facultad de Ciencias Agrarias-UNCuyo |
| publishDate |
2019 |
| url |
https://revistas.uncu.edu.ar/ojs3/index.php/RFCA/article/view/2356 |
| topic |
Fusarium graminearum rastrojos soja fungicida patogenicidad compatibilidad micelial Fusarium graminearum crop residues soybean fungicide pathogenicity mycelial compatibility |
| topic_facet |
Fusarium graminearum rastrojos soja fungicida patogenicidad compatibilidad micelial Fusarium graminearum crop residues soybean fungicide pathogenicity mycelial compatibility |
| work_keys_str_mv |
AT bonaccimartin geneticdiversityandpathogenicityonrootseedlingsfromthreesoybeancultivarsoffusariumgraminearumisolatedfrommaizecropresidues AT barrosgerman geneticdiversityandpathogenicityonrootseedlingsfromthreesoybeancultivarsoffusariumgraminearumisolatedfrommaizecropresidues |
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1800220875883020288 |
