Detection and Factors That Induce <i>Stenocarpella</i> spp. Survival in Maize Stubble and Soil Suppressiveness under Tropical Conditions
<i>Stenocarpella</i> spp. causes stalk and ear rot in maize and overwinters in stubble during the off-season. Understanding the factors that guide saprophytic colonization is a crucial strategy for management. In this study, we analyzed the abiotic factors and crop management practices i...
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| Format: | Article |
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MDPI AG
2022-05-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/12/10/4974 |
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| author | Felipe Augusto Moretti Ferreira Pinto Victor Biazzotto Correia Porto Rafaela Araújo Guimarães Carolina da Silva Siqueira Mirian Rabelo de Faria José da Cruz Machado Henrique Novaes Medeiros Dagma Dionísia da Silva Helon Santos Neto Edson Ampelio Pozza Flávio Henrique Vasconcelos de Medeiros |
| author_facet | Felipe Augusto Moretti Ferreira Pinto Victor Biazzotto Correia Porto Rafaela Araújo Guimarães Carolina da Silva Siqueira Mirian Rabelo de Faria José da Cruz Machado Henrique Novaes Medeiros Dagma Dionísia da Silva Helon Santos Neto Edson Ampelio Pozza Flávio Henrique Vasconcelos de Medeiros |
| author_sort | Felipe Augusto Moretti Ferreira Pinto |
| collection | DOAJ |
| description | <i>Stenocarpella</i> spp. causes stalk and ear rot in maize and overwinters in stubble during the off-season. Understanding the factors that guide saprophytic colonization is a crucial strategy for management. In this study, we analyzed the abiotic factors and crop management practices in relation to the inoculum of <i>Stenocarpella</i> spp. in stubble by qPCR. Soil samples were used for suppressiveness tests against <i>Fusarium verticillioides</i>, <i>Fusarium graminearum</i>, and <i>Stenocarpella maydis</i>. In the 29 fields, different levels of <i>Stenocarpella</i> spp. were detected. Only three fields were considered suppressive for the three pathogens. Heat maps showed that soil suppressiveness was inversely related to the pathogen concentration, and the suppressiveness of one pathogen was correlated with the suppressiveness of other pathogens. Under no-tillage systems in which rotation with soybeans was adopted, <i>Stenocarpella</i> spp. were detected at lower concentrations than in areas that adopted no-tillage systems with maize monocultures. While in tillage systems, the maize–maize monocropping increases the inoculum level of <i>Stenocarpella</i> spp. Crop rotation is a factor related to the observed reduction in the pathogen concentration and increases in the broad-spectrum antagonistic microbial communities. These communities guide the suppressiveness of soil-borne diseases in maize fields cultivated under tropical conditions. |
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| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T03:24:10Z |
| publishDate | 2022-05-01 |
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| spelling | doaj.art-2328da499d5c46689fd105ccd6e1ab0c2023-11-23T09:55:52ZengMDPI AGApplied Sciences2076-34172022-05-011210497410.3390/app12104974Detection and Factors That Induce <i>Stenocarpella</i> spp. Survival in Maize Stubble and Soil Suppressiveness under Tropical ConditionsFelipe Augusto Moretti Ferreira Pinto0Victor Biazzotto Correia Porto1Rafaela Araújo Guimarães2Carolina da Silva Siqueira3Mirian Rabelo de Faria4José da Cruz Machado5Henrique Novaes Medeiros6Dagma Dionísia da Silva7Helon Santos Neto8Edson Ampelio Pozza9Flávio Henrique Vasconcelos de Medeiros10Empresa de Pesquisa e Extensão Rural-EPAGRI, Estação Experimental de São Joaquim, São Joaquim 88600-000, SC, BrazilFundação de Apoio à Pequisa e Desenvolvimento do Oeste Baiano—Fundação BA, Luiz Eduado Magalhães 47850-000, BA, BrazilDepartment of Plant Pathology, Universidade Federal de Lavras, P.O. Box 3037, Lavras 37200-900, MG, BrazilDepartment of Plant Pathology, Universidade Federal de Lavras, P.O. Box 3037, Lavras 37200-900, MG, BrazilFCA/Campus Botucatu, Universidade Estadual Paulista Júlio Mesquita Filho, Botucatu 186108-034, SP, BrazilDepartment of Plant Pathology, Universidade Federal de Lavras, P.O. Box 3037, Lavras 37200-900, MG, BrazilDepartment of Plant Pathology, Universidade Federal de Lavras, P.O. Box 3037, Lavras 37200-900, MG, BrazilEmbrapa Milho e Sorgo, P.O. Box 285, Sete Lagoas 35701-970, MG, BrazilDepartment of Plant Pathology, Universidade Federal de Lavras, P.O. Box 3037, Lavras 37200-900, MG, BrazilDepartment of Plant Pathology, Universidade Federal de Lavras, P.O. Box 3037, Lavras 37200-900, MG, BrazilDepartment of Plant Pathology, Universidade Federal de Lavras, P.O. Box 3037, Lavras 37200-900, MG, Brazil<i>Stenocarpella</i> spp. causes stalk and ear rot in maize and overwinters in stubble during the off-season. Understanding the factors that guide saprophytic colonization is a crucial strategy for management. In this study, we analyzed the abiotic factors and crop management practices in relation to the inoculum of <i>Stenocarpella</i> spp. in stubble by qPCR. Soil samples were used for suppressiveness tests against <i>Fusarium verticillioides</i>, <i>Fusarium graminearum</i>, and <i>Stenocarpella maydis</i>. In the 29 fields, different levels of <i>Stenocarpella</i> spp. were detected. Only three fields were considered suppressive for the three pathogens. Heat maps showed that soil suppressiveness was inversely related to the pathogen concentration, and the suppressiveness of one pathogen was correlated with the suppressiveness of other pathogens. Under no-tillage systems in which rotation with soybeans was adopted, <i>Stenocarpella</i> spp. were detected at lower concentrations than in areas that adopted no-tillage systems with maize monocultures. While in tillage systems, the maize–maize monocropping increases the inoculum level of <i>Stenocarpella</i> spp. Crop rotation is a factor related to the observed reduction in the pathogen concentration and increases in the broad-spectrum antagonistic microbial communities. These communities guide the suppressiveness of soil-borne diseases in maize fields cultivated under tropical conditions.https://www.mdpi.com/2076-3417/12/10/4974<i>Zea mays</i>stalk diseasescrop rotationstubblesuppressive soils |
| spellingShingle | Felipe Augusto Moretti Ferreira Pinto Victor Biazzotto Correia Porto Rafaela Araújo Guimarães Carolina da Silva Siqueira Mirian Rabelo de Faria José da Cruz Machado Henrique Novaes Medeiros Dagma Dionísia da Silva Helon Santos Neto Edson Ampelio Pozza Flávio Henrique Vasconcelos de Medeiros Detection and Factors That Induce <i>Stenocarpella</i> spp. Survival in Maize Stubble and Soil Suppressiveness under Tropical Conditions Applied Sciences <i>Zea mays</i> stalk diseases crop rotation stubble suppressive soils |
| title | Detection and Factors That Induce <i>Stenocarpella</i> spp. Survival in Maize Stubble and Soil Suppressiveness under Tropical Conditions |
| title_full | Detection and Factors That Induce <i>Stenocarpella</i> spp. Survival in Maize Stubble and Soil Suppressiveness under Tropical Conditions |
| title_fullStr | Detection and Factors That Induce <i>Stenocarpella</i> spp. Survival in Maize Stubble and Soil Suppressiveness under Tropical Conditions |
| title_full_unstemmed | Detection and Factors That Induce <i>Stenocarpella</i> spp. Survival in Maize Stubble and Soil Suppressiveness under Tropical Conditions |
| title_short | Detection and Factors That Induce <i>Stenocarpella</i> spp. Survival in Maize Stubble and Soil Suppressiveness under Tropical Conditions |
| title_sort | detection and factors that induce i stenocarpella i spp survival in maize stubble and soil suppressiveness under tropical conditions |
| topic | <i>Zea mays</i> stalk diseases crop rotation stubble suppressive soils |
| url | https://www.mdpi.com/2076-3417/12/10/4974 |
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