Fungal diversity and Fusarium oxysporum pathogenicity associated with coffee corky-root disease in Mexico
The disease known as coffee corky-roots associated to the infection by the root-knot nematode Meloidogyne paranaensis is an important issue for coffee crop in several countries. In Mexico, particularly in the Veracruz state, considerable loses are recorded annually in Coffea arabica plantations by...
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| Formato: | Online |
| Lenguaje: | eng |
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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/3075 |
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Universidad Nacional de Cuyo |
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Revistas en línea |
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Revistas en línea |
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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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R-107 |
| language |
eng |
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Online |
| author |
López-Lima, Daniel Carrión, Gloria Sánchez-Nava, Petra Desgarennes, Damaris Villain, Luc |
| spellingShingle |
López-Lima, Daniel Carrión, Gloria Sánchez-Nava, Petra Desgarennes, Damaris Villain, Luc Fungal diversity and Fusarium oxysporum pathogenicity associated with coffee corky-root disease in Mexico Coffea arabica nematodo agallador hongos filamentosos Coffea arabica root-knot nematodes filamentous fungi |
| author_facet |
López-Lima, Daniel Carrión, Gloria Sánchez-Nava, Petra Desgarennes, Damaris Villain, Luc |
| author_sort |
López-Lima, Daniel |
| title |
Fungal diversity and Fusarium oxysporum pathogenicity associated with coffee corky-root disease in Mexico |
| title_short |
Fungal diversity and Fusarium oxysporum pathogenicity associated with coffee corky-root disease in Mexico |
| title_full |
Fungal diversity and Fusarium oxysporum pathogenicity associated with coffee corky-root disease in Mexico |
| title_fullStr |
Fungal diversity and Fusarium oxysporum pathogenicity associated with coffee corky-root disease in Mexico |
| title_full_unstemmed |
Fungal diversity and Fusarium oxysporum pathogenicity associated with coffee corky-root disease in Mexico |
| title_sort |
fungal diversity and fusarium oxysporum pathogenicity associated with coffee corky-root disease in mexico |
| description |
The disease known as coffee corky-roots associated to the infection by the root-knot nematode Meloidogyne paranaensis is an important issue for coffee crop in several countries. In Mexico, particularly in the Veracruz state, considerable loses are recorded annually in Coffea arabica plantations by corky-root disease. Previous studies have revealed the presence of fungi in coffee corky-root tissues. However, these fungi have not been yet identified. This work aimed to identify at species level the fungi associated to the coffee corky-root symptoms and determine their pathogenicity on coffee plants. Coffee roots with corky-root symptoms were collected in eight sites distributed through the major coffee growing region of Veracruz. Observations of inside cortical root tissues under scanning electron microscope revealed abundant mycelium and conidia incorky-root samples in contrast with absence of any fungi development in healthy roots. Forty-nine fungi strains from internal corky-root tissue were isolated and identified at species level by ITS sequences. Fusarium oxysporum was the most frequent species and the only present in all of the corky-root samples. These strains were selected for the pathogenicity test. All F. oxysporum strains colonized the vascular system of coffee plants although none caused wilting symptoms.
Highlights
Fusarium oxysporum is a major fungus associated with coffee corky-root disease.
None of the oxysporum strains inoculated into the roots of coffee plants caused vascular withering symptoms
In the tissues damaged by coffee corky-root disease interact nematodes, fungi and bacteria.
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| publisher |
Facultad de Ciencias Agrarias-UNCuyo |
| publishDate |
2020 |
| url |
https://revistas.uncu.edu.ar/ojs3/index.php/RFCA/article/view/3075 |
| topic |
Coffea arabica nematodo agallador hongos filamentosos Coffea arabica root-knot nematodes filamentous fungi |
| topic_facet |
Coffea arabica nematodo agallador hongos filamentosos Coffea arabica root-knot nematodes filamentous fungi |
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AT lopezlimadaniel fungaldiversityandfusariumoxysporumpathogenicityassociatedwithcoffeecorkyrootdiseaseinmexico AT carriongloria fungaldiversityandfusariumoxysporumpathogenicityassociatedwithcoffeecorkyrootdiseaseinmexico AT sancheznavapetra fungaldiversityandfusariumoxysporumpathogenicityassociatedwithcoffeecorkyrootdiseaseinmexico AT desgarennesdamaris fungaldiversityandfusariumoxysporumpathogenicityassociatedwithcoffeecorkyrootdiseaseinmexico AT villainluc fungaldiversityandfusariumoxysporumpathogenicityassociatedwithcoffeecorkyrootdiseaseinmexico |
| _version_ |
1800220902029262848 |
| spelling |
I11-R107article-30752020-07-06T14:59:47Z Fungal diversity and Fusarium oxysporum pathogenicity associated with coffee corky-root disease in Mexico Fungal diversity and Fusarium oxysporum pathogenicity associated with coffee corky-root disease in Mexico López-Lima, Daniel Carrión, Gloria Sánchez-Nava, Petra Desgarennes, Damaris Villain, Luc Coffea arabica nematodo agallador hongos filamentosos Coffea arabica root-knot nematodes filamentous fungi The disease known as coffee corky-roots associated to the infection by the root-knot nematode Meloidogyne paranaensis is an important issue for coffee crop in several countries. In Mexico, particularly in the Veracruz state, considerable loses are recorded annually in Coffea arabica plantations by corky-root disease. Previous studies have revealed the presence of fungi in coffee corky-root tissues. However, these fungi have not been yet identified. This work aimed to identify at species level the fungi associated to the coffee corky-root symptoms and determine their pathogenicity on coffee plants. Coffee roots with corky-root symptoms were collected in eight sites distributed through the major coffee growing region of Veracruz. Observations of inside cortical root tissues under scanning electron microscope revealed abundant mycelium and conidia incorky-root samples in contrast with absence of any fungi development in healthy roots. Forty-nine fungi strains from internal corky-root tissue were isolated and identified at species level by ITS sequences. Fusarium oxysporum was the most frequent species and the only present in all of the corky-root samples. These strains were selected for the pathogenicity test. All F. oxysporum strains colonized the vascular system of coffee plants although none caused wilting symptoms. Highlights Fusarium oxysporum is a major fungus associated with coffee corky-root disease. None of the oxysporum strains inoculated into the roots of coffee plants caused vascular withering symptoms In the tissues damaged by coffee corky-root disease interact nematodes, fungi and bacteria. The disease known as coffee corky-roots associated to the infection by the root-knot nematode Meloidogyne paranaensis is an important issue for coffee crop in several countries. In Mexico, particularly in the Veracruz state, considerable loses are recorded annually in Coffea arabica plantations by corky-root disease. Previous studies have revealed the presence of fungi in coffee corky-root tissues. However, these fungi have not been yet identified. This work aimed to identify at species level the fungi associated to the coffee corky-root symptoms and determine their pathogenicity on coffee plants. Coffee roots with corky-root symptoms were collected in eight sites distributed through the major coffee growing region of Veracruz. Observations of inside cortical root tissues under scanning electron microscope revealed abundant mycelium and conidia incorky-root samples in contrast with absence of any fungi development in healthy roots. Forty-nine fungi strains from internal corky-root tissue were isolated and identified at species level by ITS sequences. Fusarium oxysporum was the most frequent species and the only present in all of the corky-root samples. These strains were selected for the pathogenicity test. All F. oxysporum strains colonized the vascular system of coffee plants although none caused wilting symptoms. Highlights Fusarium oxysporum is a major fungus associated with coffee corky-root disease. None of the oxysporum strains inoculated into the roots of coffee plants caused vascular withering symptoms In the tissues damaged by coffee corky-root disease interact nematodes, fungi and bacteria. Facultad de Ciencias Agrarias-UNCuyo 2020-06-01 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/3075 Revista de la Facultad de Ciencias Agrarias UNCuyo; Vol. 52 No. 1 (2020): January-June; 276-292 Revista de la Facultad de Ciencias Agrarias UNCuyo; Vol. 52 Núm. 1 (2020): Enero-Junio; 276-292 1853-8665 0370-4661 eng https://revistas.uncu.edu.ar/ojs3/index.php/RFCA/article/view/3075/2225 https://revistas.uncu.edu.ar/ojs3/index.php/RFCA/article/view/3075/2625 |
