Identificación y caracterización de especies de Colletotrichum asociadas a manchas foliares y podredumbre amarga en manzanos de bajos requerimientos de frío del centro de Santa Fe
Fil: Fernández, Laura Noemí. Universidad Nacional del Litoral. Facultad de Ciencias Agrarias; Argentina.
| Autor principal: | |
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| Otros Autores: | |
| Formato: | SNRD Tesis doctoral acceptedVersion |
| Lenguaje: | Español |
| Publicado: |
2023
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/11185/7146 |
| Aporte de: |
| id |
I26-R132-11185-7146 |
|---|---|
| record_format |
dspace |
| institution |
Universidad Nacional del Litoral |
| institution_str |
I-26 |
| repository_str |
R-132 |
| collection |
Biblioteca Virtual - Tesis (UNL) |
| language |
Español |
| topic |
Podredumbre amarga Manchas foliares Complejo de especies C. gloeosporioides Manzanos de bajos requerimientos de frío Identificación molecular Fungicidas Bitter rot Leaf spot C. gloeosporioides species complex Low-chill apple cultivars Molecular identification Fungicide |
| spellingShingle |
Podredumbre amarga Manchas foliares Complejo de especies C. gloeosporioides Manzanos de bajos requerimientos de frío Identificación molecular Fungicidas Bitter rot Leaf spot C. gloeosporioides species complex Low-chill apple cultivars Molecular identification Fungicide Fernández, Laura Noemí Identificación y caracterización de especies de Colletotrichum asociadas a manchas foliares y podredumbre amarga en manzanos de bajos requerimientos de frío del centro de Santa Fe |
| topic_facet |
Podredumbre amarga Manchas foliares Complejo de especies C. gloeosporioides Manzanos de bajos requerimientos de frío Identificación molecular Fungicidas Bitter rot Leaf spot C. gloeosporioides species complex Low-chill apple cultivars Molecular identification Fungicide |
| description |
Fil: Fernández, Laura Noemí. Universidad Nacional del Litoral. Facultad de Ciencias Agrarias; Argentina. |
| author2 |
Mondino, Pedro Emilio |
| author_facet |
Mondino, Pedro Emilio Fernández, Laura Noemí |
| format |
SNRD Tesis doctoral Tesis doctoral acceptedVersion |
| author |
Fernández, Laura Noemí |
| author_sort |
Fernández, Laura Noemí |
| title |
Identificación y caracterización de especies de Colletotrichum asociadas a manchas foliares y podredumbre amarga en manzanos de bajos requerimientos de frío del centro de Santa Fe |
| title_short |
Identificación y caracterización de especies de Colletotrichum asociadas a manchas foliares y podredumbre amarga en manzanos de bajos requerimientos de frío del centro de Santa Fe |
| title_full |
Identificación y caracterización de especies de Colletotrichum asociadas a manchas foliares y podredumbre amarga en manzanos de bajos requerimientos de frío del centro de Santa Fe |
| title_fullStr |
Identificación y caracterización de especies de Colletotrichum asociadas a manchas foliares y podredumbre amarga en manzanos de bajos requerimientos de frío del centro de Santa Fe |
| title_full_unstemmed |
Identificación y caracterización de especies de Colletotrichum asociadas a manchas foliares y podredumbre amarga en manzanos de bajos requerimientos de frío del centro de Santa Fe |
| title_sort |
identificación y caracterización de especies de colletotrichum asociadas a manchas foliares y podredumbre amarga en manzanos de bajos requerimientos de frío del centro de santa fe |
| publishDate |
2023 |
| url |
https://hdl.handle.net/11185/7146 |
| work_keys_str_mv |
AT fernandezlauranoemi identificacionycaracterizaciondeespeciesdecolletotrichumasociadasamanchasfoliaresypodredumbreamargaenmanzanosdebajosrequerimientosdefriodelcentrodesantafe AT fernandezlauranoemi identificationandcharacterizationofcolletotrichumspeciesassociatedwithleafspotsandbitterrotinlowchillapplecultivarsincentralsantafe |
| _version_ |
1768721161288417280 |
| spelling |
I26-R132-11185-71462023-06-08T11:55:59Z Identificación y caracterización de especies de Colletotrichum asociadas a manchas foliares y podredumbre amarga en manzanos de bajos requerimientos de frío del centro de Santa Fe Identification and characterization of Colletotrichum species associated with leaf spots and bitter rot in low-chill apple cultivars in central Santa Fe Fernández, Laura Noemí Mondino, Pedro Emilio Sosa, María Cristina Galdeano, Ernestina Del Valle, Eleodoro Favaro, María Alejandra Podredumbre amarga Manchas foliares Complejo de especies C. gloeosporioides Manzanos de bajos requerimientos de frío Identificación molecular Fungicidas Bitter rot Leaf spot C. gloeosporioides species complex Low-chill apple cultivars Molecular identification Fungicide Fil: Fernández, Laura Noemí. Universidad Nacional del Litoral. Facultad de Ciencias Agrarias; Argentina. Bitter rot (BR), caused by Colletotrichum spp., is one of the prevalent fungal diseases of apple worldwide. Some Colletotrichum spp. also causes Glomerella leaf spot (GLS). The presence of BR was recorded in 2014 in the central region of Santa Fe, and leaf spots (LS) began to be seen in 2016 in three low-chill apple cultivars, ‘Eva’, ‘Princesa’ and ‘Caricia’. This thesis was focused to characterized the Colletotrichum species involved in these pathologies, studying aspects of epidemiology and pathogenesis and determined the sensitivity of isolates to fungicides. Thirty-four isolates from symptomatic fruits and leaves were obtained. Morphological characteristics in combination with multilocus analysis revealed that Colletotrichum siamense is the single species associated with BR and LS on low-chill apples in Santa Fe. Of the three cultivars evaluated, ‘Caricia’ was the most susceptible to BR. The registered LS have notable differences with typical GLS revealing that this disease is no present in the region. It was also determined that C. siamense survives in the form of conidia, mainly on the plant, and that it uses a hemibiotrophic mechanism to infect fruits and leaves. The isolates of C. siamense are sensitive to fungicides belonging to the methyl benzimidazole carbamate and demethylation inhibitors groups. These findings will be useful for future studies of sensitivity to fungicide in the field and to design management strategies for diseases caused by C. siamense in the region. Bitter rot (BR), caused by Colletotrichum spp., is one of the prevalent fungal diseases of apple worldwide. Some Colletotrichum spp. also causes Glomerella leaf spot (GLS). The presence of BR was recorded in 2014 in the central region of Santa Fe, and leaf spots (LS) began to be seen in 2016 in three low-chill apple cultivars, ‘Eva’, ‘Princesa’ and ‘Caricia’. This thesis was focused to characterized the Colletotrichum species involved in these pathologies, studying aspects of epidemiology and pathogenesis and determined the sensitivity of isolates to fungicides. Thirty-four isolates from symptomatic fruits and leaves were obtained. Morphological characteristics in combination with multilocus analysis revealed that Colletotrichum siamense is the single species associated with BR and LS on low-chill apples in Santa Fe. Of the three cultivars evaluated, ‘Caricia’ was the most susceptible to BR. The registered LS have notable differences with typical GLS revealing that this disease is no present in the region. It was also determined that C. siamense survives in the form of conidia, mainly on the plant, and that it uses a hemibiotrophic mechanism to infect fruits and leaves. The isolates of C. siamense are sensitive to fungicides belonging to the methyl benzimidazole carbamate and demethylation inhibitors groups. These findings will be useful for future studies of sensitivity to fungicide in the field and to design management strategies for diseases caused by C. siamense in the region. Consejo Nacional de Investigaciones Científicas y Técnicas Universidad Nacional del Litoral 2023-06-05T13:00:39Z 2023-06-05T13:00:39Z 2023-02-13 SNRD info:eu-repo/semantics/doctoralThesis info:ar-repo/semantics/tesis doctoral info:eu-repo/semantics/acceptedVersion https://hdl.handle.net/11185/7146 spa info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-nd/4.0/deed.es application/pdf |