Differential response of maize hybrids to field infection with Aspergillus flavus and aflatoxin accumulation in the Chaco Semi-arid region of Argentina
Maize is affected by Aspergillus flavus and by the contamination of its kernels with aflatoxins, of which AFB1 is the most important. The Chaco Semi-arid is a region of Argentina in which the climate conditions increase this problem and due to the use of resistant cultivars is the best available tac...
| Main Authors: | , , , , , , , , |
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| Format: | Artículo |
| Language: | Inglés |
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Elsevier
2022
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| Online Access: | http://hdl.handle.net/20.500.12123/11404 https://www.sciencedirect.com/science/article/pii/S0261219422000564 https://doi.org/10.1016/j.cropro.2022.105960 |
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| author | Barontini, Javier Miguel Alaniz Zanon, Maria Silvina Druetta, Marcelo Alberto Ruiz Posse, Agustina María Torrico Ramallo, Ada Karina Monge, María del Pilar Candela, Raúl Esteban Chulze, Sofía Noemí Gimenez, Maria De La Paz |
| author_browse | Alaniz Zanon, Maria Silvina Barontini, Javier Miguel Candela, Raúl Esteban Chulze, Sofía Noemí Druetta, Marcelo Alberto Gimenez, Maria De La Paz Monge, María del Pilar Ruiz Posse, Agustina María Torrico Ramallo, Ada Karina |
| author_facet | Barontini, Javier Miguel Alaniz Zanon, Maria Silvina Druetta, Marcelo Alberto Ruiz Posse, Agustina María Torrico Ramallo, Ada Karina Monge, María del Pilar Candela, Raúl Esteban Chulze, Sofía Noemí Gimenez, Maria De La Paz |
| author_sort | Barontini, Javier Miguel |
| collection | INTA Digital |
| description | Maize is affected by Aspergillus flavus and by the contamination of its kernels with aflatoxins, of which AFB1 is the most important. The Chaco Semi-arid is a region of Argentina in which the climate conditions increase this problem and due to the use of resistant cultivars is the best available tactic to reduce aflatoxin accumulation, we analyzed six hybrids against artificial inoculation with native aflatoxin-producing isolates of A. flavus. A multifactorial experiment was conducted in three complete randomized blocks, under Inoculated and Non-
Inoculated treatment, in two locations and during two growing seasons, in which yield, kernel infection, and
AFB1 accumulation (using HPLC) were evaluated. P2089VYHR was outstanding during 2018/19 with 11,089 kg ha 1, coinciding with the growing season with the highest rainfall and 4% decrease in yield (395 kg ha 1) was observed between treatments. No yield differences were observed in the hybrids between localities, or in the hybrid × treatment interaction. The level of infection by A. flavus showed differences between localities and growing seasons but not between hybrids. The Inoculated treatment registered kernel infections above 50%, while natural infection was 35% during 2019/20, associated with rainfall below crop requirements during the flowering period. The AFB1 accumulation analysis identified P2089VYHR and P1366VYHR without AFB1
accumulation. Yield correlated negatively with the percentage of kernel infection, but not with AFB1 accumulation, while a positive correlation was observed between these last two parameters. The pathogen causes a decrease in yield in the region and there are hybrids that are resistant to AFB1. |
| format | Artículo |
| id | INTA11404 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2022 |
| publishDateRange | 2022 |
| publishDateSort | 2022 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| record_format | dspace |
| spelling | INTA114042022-08-12T16:03:45Z Differential response of maize hybrids to field infection with Aspergillus flavus and aflatoxin accumulation in the Chaco Semi-arid region of Argentina Barontini, Javier Miguel Alaniz Zanon, Maria Silvina Druetta, Marcelo Alberto Ruiz Posse, Agustina María Torrico Ramallo, Ada Karina Monge, María del Pilar Candela, Raúl Esteban Chulze, Sofía Noemí Gimenez, Maria De La Paz Maize Aflatoxins Zea Mays Aspergillus Flavus Maíz Aflatoxinas Aflatoxin Accumulation Toxigenic Isolates Región Chaco Semiárido Maize is affected by Aspergillus flavus and by the contamination of its kernels with aflatoxins, of which AFB1 is the most important. The Chaco Semi-arid is a region of Argentina in which the climate conditions increase this problem and due to the use of resistant cultivars is the best available tactic to reduce aflatoxin accumulation, we analyzed six hybrids against artificial inoculation with native aflatoxin-producing isolates of A. flavus. A multifactorial experiment was conducted in three complete randomized blocks, under Inoculated and Non- Inoculated treatment, in two locations and during two growing seasons, in which yield, kernel infection, and AFB1 accumulation (using HPLC) were evaluated. P2089VYHR was outstanding during 2018/19 with 11,089 kg ha 1, coinciding with the growing season with the highest rainfall and 4% decrease in yield (395 kg ha 1) was observed between treatments. No yield differences were observed in the hybrids between localities, or in the hybrid × treatment interaction. The level of infection by A. flavus showed differences between localities and growing seasons but not between hybrids. The Inoculated treatment registered kernel infections above 50%, while natural infection was 35% during 2019/20, associated with rainfall below crop requirements during the flowering period. The AFB1 accumulation analysis identified P2089VYHR and P1366VYHR without AFB1 accumulation. Yield correlated negatively with the percentage of kernel infection, but not with AFB1 accumulation, while a positive correlation was observed between these last two parameters. The pathogen causes a decrease in yield in the region and there are hybrids that are resistant to AFB1. Instituto de Patología Vegetal Fil: Barontini, Javier Miguel. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Fitopatología y Modelización Agrícola; Argentina Fil: Barontini, Javier Miguel. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patología Vegetal; Argentina Fil: Alaniz Zanon, María Silvina. Universidad Nacional de Río Cuarto. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigación en Micología y Micotoxicología (IMICO); Argentina Fil: Druetta, Marcelo Alberto. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Este de Santiago del Estero; Argentina Fil: Ruiz Posse, Agustina María. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Fitopatología y Modelización Agrícola; Argentina Fil: Ruiz Posse, Agustina María. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patología Vegetal; Argentina Fil: Torrico Ramallo, Ada Karina. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patología Vegetal; Argentina Fil: Torrico Ramallo, Ada Karina. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Fitopatología y Modelización Agrícola (UFyMA); Argentina Fil: Monge, María del Pilar. Universidad Nacional de Río Cuarto. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigación en Micología y Micotoxicología (IMICO); Argentina Fil: Candela, Raúl Esteban. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Manfredi. Agencia De Extensión Rural Jesús María; Argentina Fil: Chulze, Sofía Noemí. Universidad Nacional de Río Cuarto. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigación en Micología y Micotoxicología (IMICO); Argentina Fil: Gimenez, Maria De La Paz. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patología Vegetal; Argentina 2022-03-15T20:09:23Z 2022-03-15T20:09:23Z 2022-03-08 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/11404 https://www.sciencedirect.com/science/article/pii/S0261219422000564 0261-2194 https://doi.org/10.1016/j.cropro.2022.105960 eng info:eu-repograntAgreement/INTA/2019-PE-E4-I074-001/2019-PE-E4-I074-001/AR./Manejo Integrado de Plagas info:eu-repo/semantics/restrictedAccess application/pdf Elsevier Crop Protection 156 : 105960 (June 2022) |
| spellingShingle | Maize Aflatoxins Zea Mays Aspergillus Flavus Maíz Aflatoxinas Aflatoxin Accumulation Toxigenic Isolates Región Chaco Semiárido Barontini, Javier Miguel Alaniz Zanon, Maria Silvina Druetta, Marcelo Alberto Ruiz Posse, Agustina María Torrico Ramallo, Ada Karina Monge, María del Pilar Candela, Raúl Esteban Chulze, Sofía Noemí Gimenez, Maria De La Paz Differential response of maize hybrids to field infection with Aspergillus flavus and aflatoxin accumulation in the Chaco Semi-arid region of Argentina |
| title | Differential response of maize hybrids to field infection with Aspergillus flavus and aflatoxin accumulation in the Chaco Semi-arid region of Argentina |
| title_full | Differential response of maize hybrids to field infection with Aspergillus flavus and aflatoxin accumulation in the Chaco Semi-arid region of Argentina |
| title_fullStr | Differential response of maize hybrids to field infection with Aspergillus flavus and aflatoxin accumulation in the Chaco Semi-arid region of Argentina |
| title_full_unstemmed | Differential response of maize hybrids to field infection with Aspergillus flavus and aflatoxin accumulation in the Chaco Semi-arid region of Argentina |
| title_short | Differential response of maize hybrids to field infection with Aspergillus flavus and aflatoxin accumulation in the Chaco Semi-arid region of Argentina |
| title_sort | differential response of maize hybrids to field infection with aspergillus flavus and aflatoxin accumulation in the chaco semi arid region of argentina |
| topic | Maize Aflatoxins Zea Mays Aspergillus Flavus Maíz Aflatoxinas Aflatoxin Accumulation Toxigenic Isolates Región Chaco Semiárido |
| url | http://hdl.handle.net/20.500.12123/11404 https://www.sciencedirect.com/science/article/pii/S0261219422000564 https://doi.org/10.1016/j.cropro.2022.105960 |
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