Damping off on soybean (Glycine max) caused by Pythium aphanidermatum in Buenos Aires Province (Argentina)
Pythium aphanidermatum has a cosmopolitan distribution in the warmer parts of the world. The aim of this study was to identify the causal agent of damping off in soybean seedlings on late planting dates under hot conditions, from different locations in Buenos Aires province. The isolates induced di...
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Facultad de Ciencias Agrarias-UNCuyo
2020
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| Acceso en línea: | https://revistas.uncu.edu.ar/ojs3/index.php/RFCA/article/view/3027 |
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I11-R107article-30272020-12-04T21:59:31Z Damping off on soybean (Glycine max) caused by Pythium aphanidermatum in Buenos Aires Province (Argentina) Damping off on soybean (Glycine max) caused by Pythium aphanidermatum in Buenos Aires Province (Argentina) Grijalba, Pablo E. Ridao, Azucena del C. Steciow, Mónica oomycetes podredumbre de raíz tasa de crecimiento patogenicidad temperatura oomycetes root rot growth rate pathogenicity temperature Pythium aphanidermatum has a cosmopolitan distribution in the warmer parts of the world. The aim of this study was to identify the causal agent of damping off in soybean seedlings on late planting dates under hot conditions, from different locations in Buenos Aires province. The isolates induced different levels of plant and seedling death and growth rate at different incubation temperatures (15, 25 and 35ºC). In accordance with morphological, cultural and molecular characteristics, the pathogen was identified as P. aphanidermatum, and this is the first report of this oomycete causing soybean root and stem rot in Buenos Aires province, Argentina. Highlights Pythium aphanidermatum was recovered from commercial fields of different localities from northern Buenos Aires province and southern Entre Rios province. Temperatures of 35 ºC constitute predisposing conditions and caused the higher percentage of dead seedlings and at temperatures of 15 ºC P. aphanidermatum did not affect the seedlings, being almost not pathogenic at this temperature. Pythium aphanidermatum has a cosmopolitan distribution in the warmer parts of the world. The aim of this study was to identify the causal agent of damping off in soybean seedlings on late planting dates under hot conditions, from different locations in Buenos Aires province. The isolates induced different levels of plant and seedling death and growth rate at different incubation temperatures (15, 25 and 35ºC). In accordance with morphological, cultural and molecular characteristics, the pathogen was identified as P. aphanidermatum, and this is the first report of this oomycete causing soybean root and stem rot in Buenos Aires province, Argentina. Highlights Pythium aphanidermatum was recovered from commercial fields of different localities from northern Buenos Aires province and southern Entre Rios province. Temperatures of 35 ºC constitute predisposing conditions and caused the higher percentage of dead seedlings and at temperatures of 15 ºC P. aphanidermatum did not affect the seedlings, being almost not pathogenic at this temperature. Facultad de Ciencias Agrarias-UNCuyo 2020-12-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://revistas.uncu.edu.ar/ojs3/index.php/RFCA/article/view/3027 Revista de la Facultad de Ciencias Agrarias UNCuyo; Vol. 52 No. 2 (2020): June-December; 282-288 Revista de la Facultad de Ciencias Agrarias UNCuyo; Vol. 52 Núm. 2 (2020): Julio-Diciembre; 282-288 1853-8665 0370-4661 eng https://revistas.uncu.edu.ar/ojs3/index.php/RFCA/article/view/3027/2194 |
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Universidad Nacional de Cuyo |
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Revista de la Facultad de Ciencias Agrarias |
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Revista de la Facultad de Ciencias Agrarias |
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| language |
eng |
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Online |
| author |
Grijalba, Pablo E. Ridao, Azucena del C. Steciow, Mónica |
| spellingShingle |
Grijalba, Pablo E. Ridao, Azucena del C. Steciow, Mónica Damping off on soybean (Glycine max) caused by Pythium aphanidermatum in Buenos Aires Province (Argentina) oomycetes podredumbre de raíz tasa de crecimiento patogenicidad temperatura oomycetes root rot growth rate pathogenicity temperature |
| author_facet |
Grijalba, Pablo E. Ridao, Azucena del C. Steciow, Mónica |
| author_sort |
Grijalba, Pablo E. |
| title |
Damping off on soybean (Glycine max) caused by Pythium aphanidermatum in Buenos Aires Province (Argentina) |
| title_short |
Damping off on soybean (Glycine max) caused by Pythium aphanidermatum in Buenos Aires Province (Argentina) |
| title_full |
Damping off on soybean (Glycine max) caused by Pythium aphanidermatum in Buenos Aires Province (Argentina) |
| title_fullStr |
Damping off on soybean (Glycine max) caused by Pythium aphanidermatum in Buenos Aires Province (Argentina) |
| title_full_unstemmed |
Damping off on soybean (Glycine max) caused by Pythium aphanidermatum in Buenos Aires Province (Argentina) |
| title_sort |
damping off on soybean (glycine max) caused by pythium aphanidermatum in buenos aires province (argentina) |
| description |
Pythium aphanidermatum has a cosmopolitan distribution in the warmer parts of the world. The aim of this study was to identify the causal agent of damping off in soybean seedlings on late planting dates under hot conditions, from different locations in Buenos Aires province. The isolates induced different levels of plant and seedling death and growth rate at different incubation temperatures (15, 25 and 35ºC). In accordance with morphological, cultural and molecular characteristics, the pathogen was identified as P. aphanidermatum, and this is the first report of this oomycete causing soybean root and stem rot in Buenos Aires province, Argentina.
Highlights
Pythium aphanidermatum was recovered from commercial fields of different localities from northern Buenos Aires province and southern Entre Rios province.
Temperatures of 35 ºC constitute predisposing conditions and caused the higher percentage of dead seedlings and at temperatures of 15 ºC P. aphanidermatum did not affect the seedlings, being almost not pathogenic at this temperature.
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| publisher |
Facultad de Ciencias Agrarias-UNCuyo |
| publishDate |
2020 |
| url |
https://revistas.uncu.edu.ar/ojs3/index.php/RFCA/article/view/3027 |
| topic |
oomycetes podredumbre de raíz tasa de crecimiento patogenicidad temperatura oomycetes root rot growth rate pathogenicity temperature |
| topic_facet |
oomycetes podredumbre de raíz tasa de crecimiento patogenicidad temperatura oomycetes root rot growth rate pathogenicity temperature |
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