Edaphic factors and entomopathogenic nematodes in a neotropical banana agroecosystem
Introduction: In Costa Rica the banana is one of the most important crops in terms of production and exports; the application of pesticides is hence necessary to control the effect of pests on the plantation, such as the Cosmopolites sordidus black weevil. Because of the harmful effects of pesticide...
| Autores: | , , |
|---|---|
| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2020 |
| País: | Costa Rica |
| Institución: | Universidad de Costa Rica |
| Repositorio: | Portal de Revistas UCR |
| Idioma: | español |
| OAI Identifier: | oai:portal.ucr.ac.cr:article/37680 |
| Acceso en línea: | https://revistas.ucr.ac.cr/index.php/rbt/article/view/37680 |
| Access Level: | acceso abierto |
| Palabra clave: | banana Steinernema Heterorhabditis Cosmopolites sordidus banano |
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Costa Rica |
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Edaphic factors and entomopathogenic nematodes in a neotropical banana agroecosystem Factores edáficos y nemátodos entomopatógenos en un agroecosistema neotropical de banano |
| title |
Edaphic factors and entomopathogenic nematodes in a neotropical banana agroecosystem |
| spellingShingle |
Edaphic factors and entomopathogenic nematodes in a neotropical banana agroecosystem Vidaurre Barahona, Daniela banana Steinernema Heterorhabditis Cosmopolites sordidus banano Steinernema Heterorhabditis Cosmopolites sordidus |
| title_short |
Edaphic factors and entomopathogenic nematodes in a neotropical banana agroecosystem |
| title_full |
Edaphic factors and entomopathogenic nematodes in a neotropical banana agroecosystem |
| title_fullStr |
Edaphic factors and entomopathogenic nematodes in a neotropical banana agroecosystem |
| title_full_unstemmed |
Edaphic factors and entomopathogenic nematodes in a neotropical banana agroecosystem |
| title_sort |
Edaphic factors and entomopathogenic nematodes in a neotropical banana agroecosystem |
| dc.creator.none.fl_str_mv |
Vidaurre Barahona, Daniela Rodríguez Morales, Alejandro Uribe Lorío, Lidieth |
| author |
Vidaurre Barahona, Daniela |
| author_facet |
Vidaurre Barahona, Daniela Rodríguez Morales, Alejandro Uribe Lorío, Lidieth |
| author_role |
author |
| author2 |
Rodríguez Morales, Alejandro Uribe Lorío, Lidieth |
| author2_role |
author author |
| dc.subject.none.fl_str_mv |
banana Steinernema Heterorhabditis Cosmopolites sordidus banano Steinernema Heterorhabditis Cosmopolites sordidus |
| topic |
banana Steinernema Heterorhabditis Cosmopolites sordidus banano Steinernema Heterorhabditis Cosmopolites sordidus |
| description |
Introduction: In Costa Rica the banana is one of the most important crops in terms of production and exports; the application of pesticides is hence necessary to control the effect of pests on the plantation, such as the Cosmopolites sordidus black weevil. Because of the harmful effects of pesticides on human and environmental health, and the possibility that pests become resistant to these substances, alternatives compatible with the environment, as potential biological controllers, have been investigated to complement the effect of agrochemicals. The entomopathogenic nematodes (EPN) of genera Heterorhabditis and Steinernema have become a focus of study in the field of biological control because of their symbiotic relation with bacteria of genera Photorhabdus and Xenorhabdus, which are a complex capable of eliminating host insects in hours. Objective: The objective was to determine the presence of EPN of genera Heterorhabditis and Steinernema in soil samples taken from banana plantations in the Caribbean region of Costa Rica, and to characterize their habitat. Methods: Sampling points were selected within the plantations and surrounding areas; physicochemical and microbiological analyses were undertaken (pH, acidity, organic matter, Ca, K, Mg, P, Fe, Cu, Zn, Mn, texture, biomass and microbial respiration of the soil, EPN isolation). Variables were analyzed statistically to determine differences between them, in sampling sites, and samples with presence and absence of EPN. A principal-component analysis (PCA) was undertaken using the variables of greater influence in both categories to find their combinations that would explain their presence according to habitat conditions. A discriminant analysis was undertaken to determine the efficiency of the variables selected in the diagnosis of nematode occurrence. Results: The variables related to the presence of EPN were shown to correspond to organic matter, carbon biomass and microbial respiration. Of the samples 38.4 % were found to be positive with respect to the presence of EPN, of which 95 % correspond to genus Steinernema and the remaining 5 % to Heterorhabditis. According to the quadratic discriminant equation, from 81.2 % of the samples without nematodes, six belong to the group with their presence, whereas for those with EPN, 55.0 % (nine of 20) belong to the absence group. Conclusions: No statistical difference was found between the selected sampling habitats (P = 0.4296); the three variables mentioned above were thus determined have an influence on the presence of EPN; their large values indicate favorable conditions for their persistence. |
| publishDate |
2020 |
| dc.date.none.fl_str_mv |
2020-03-31 |
| dc.type.none.fl_str_mv |
info:eu-repo/semantics/publishedVersion Article artículo original http://purl.org/coar/resource_type/c_2df8fbb1 info:eu-repo/semantics/article |
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article |
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publishedVersion |
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https://revistas.ucr.ac.cr/index.php/rbt/article/view/37680 10.15517/rbt.v68i1.37680 |
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https://revistas.ucr.ac.cr/index.php/rbt/article/view/37680 |
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10.15517/rbt.v68i1.37680 |
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spa |
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spa |
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https://revistas.ucr.ac.cr/index.php/rbt/article/view/37680/41262 https://revistas.ucr.ac.cr/index.php/rbt/article/view/37680/41300 |
| dc.rights.none.fl_str_mv |
Derechos de autor 2020 Daniela Vidaurre Barahona, Alejandro Rodríguez Morales, Lidieth Uribe Lorío http://creativecommons.org/licenses/by/4.0 acceso abierto http://purl.org/coar/access_right/c_abf2 info:eu-repo/semantics/openAccess |
| rights_invalid_str_mv |
Derechos de autor 2020 Daniela Vidaurre Barahona, Alejandro Rodríguez Morales, Lidieth Uribe Lorío http://creativecommons.org/licenses/by/4.0 acceso abierto http://purl.org/coar/access_right/c_abf2 |
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openAccess |
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application/pdf text/html |
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Universidad de Costa Rica |
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Universidad de Costa Rica |
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Revista de Biología Tropical; Vol. 68 No. 1 (2020): Revista de Biología Tropical (Int. J. Trop. Biol.): Continuous publication, January - March 2020; 276–288 Revista de Biología Tropical; Vol. 68 Núm. 1 (2020): Revista de Biología Tropical (Int. J. Trop. Biol.): Publicación continua, Enero - Marzo 2020; 276–288 Revista Biología Tropical; Vol. 68 N.º 1 (2020): Revista de Biología Tropical (Int. J. Trop. Biol.): Publicación continua, Enero - Marzo 2020; 276–288 2215-2075 0034-7744 10.15517/rbt.v68i1 reponame:Portal de Revistas UCR instname:Universidad de Costa Rica instacron:UCR |
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Universidad de Costa Rica |
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UCR |
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UCR |
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Portal de Revistas UCR |
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Portal de Revistas UCR |
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Portal de Revistas UCR - Universidad de Costa Rica |
| repository.mail.fl_str_mv |
jorge.polanco@ucr.ac.cr |
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1849325387281072128 |
| spelling |
Edaphic factors and entomopathogenic nematodes in a neotropical banana agroecosystemFactores edáficos y nemátodos entomopatógenos en un agroecosistema neotropical de bananoVidaurre Barahona, DanielaRodríguez Morales, AlejandroUribe Lorío, LidiethbananaSteinernemaHeterorhabditisCosmopolites sordidusbananoSteinernemaHeterorhabditisCosmopolites sordidusIntroduction: In Costa Rica the banana is one of the most important crops in terms of production and exports; the application of pesticides is hence necessary to control the effect of pests on the plantation, such as the Cosmopolites sordidus black weevil. Because of the harmful effects of pesticides on human and environmental health, and the possibility that pests become resistant to these substances, alternatives compatible with the environment, as potential biological controllers, have been investigated to complement the effect of agrochemicals. The entomopathogenic nematodes (EPN) of genera Heterorhabditis and Steinernema have become a focus of study in the field of biological control because of their symbiotic relation with bacteria of genera Photorhabdus and Xenorhabdus, which are a complex capable of eliminating host insects in hours. Objective: The objective was to determine the presence of EPN of genera Heterorhabditis and Steinernema in soil samples taken from banana plantations in the Caribbean region of Costa Rica, and to characterize their habitat. Methods: Sampling points were selected within the plantations and surrounding areas; physicochemical and microbiological analyses were undertaken (pH, acidity, organic matter, Ca, K, Mg, P, Fe, Cu, Zn, Mn, texture, biomass and microbial respiration of the soil, EPN isolation). Variables were analyzed statistically to determine differences between them, in sampling sites, and samples with presence and absence of EPN. A principal-component analysis (PCA) was undertaken using the variables of greater influence in both categories to find their combinations that would explain their presence according to habitat conditions. A discriminant analysis was undertaken to determine the efficiency of the variables selected in the diagnosis of nematode occurrence. Results: The variables related to the presence of EPN were shown to correspond to organic matter, carbon biomass and microbial respiration. Of the samples 38.4 % were found to be positive with respect to the presence of EPN, of which 95 % correspond to genus Steinernema and the remaining 5 % to Heterorhabditis. According to the quadratic discriminant equation, from 81.2 % of the samples without nematodes, six belong to the group with their presence, whereas for those with EPN, 55.0 % (nine of 20) belong to the absence group. Conclusions: No statistical difference was found between the selected sampling habitats (P = 0.4296); the three variables mentioned above were thus determined have an influence on the presence of EPN; their large values indicate favorable conditions for their persistence.Introducción: En Costa Rica el banano es uno de los cultivos más importantes en términos de producción y exportaciones, que requiere la aplicación de agroquímicos para controlar el efecto de plagas como el picudo negro, Cosmopolites sordidus. Debido a los efectos dañinos en la salud humana y ambiental, y la posibilidad de que las plagas presenten resistencia a estas sustancias, es necesario investigar alternativas amigables con el medio ambiente como potenciales controladores biológicos. Los nemátodos entomopatógenos (NEPs) de los géneros Heterorhabditis y Steinernema presentan una relación simbiótica con bacterias de los géneros Photorhabdus y Xenorhabdus respectivamente y este complejo ha sido ampliamente estudiado como controlador biológico debido a su capacidad de eliminar insectos hospederos en horas. Objetivo: Determinar la presencia de nemátodos de los géneros Heterorhabditis y Steinernema en suelos de plantaciones de banano del Caribe costarricense y zonas aledañas y caracterizar su hábitat. Metodología: Se tomaron muestras de suelo en plantaciones y áreas circundantes, a partir de las cuales, se llevó cabo aislamiento de NEPs y análisis químicos, físicos y microbiológicos (pH, acidez, materia orgánica, Ca, K, Mg, P, Fe, Cu, Zn, Mn, textura del suelo, biomasa y respiración microbiana). Se encontraron diferencias entre sitios de muestreo, y muestras con presencia y ausencia de NEPs, y se realizó un análisis de componentes principales utilizando las variables con mayor influencia en ambas categorías para encontrar combinaciones de las mismas que explicaran la presencia según condiciones del hábitat. Se efectuó un análisis discriminante para determinar la eficiencia de las variables seleccionadas en el diagnóstico de presencia. Resultados: Se mostró que las variables relacionadas con la presencia de NEPs corresponden a materia orgánica, biomasa microbiana de carbono y respiración microbiana. Se encontró que el 38.4 % de las muestras fueron positivas con respecto a la presencia de los mismos, de las cuales el 95 % corresponde al género Steinernema y el 5 % restante a Heterorhabditis. Según la ecuación discriminante cuadrática, de un 81.2 % de las muestras sin nemátodos, seis deberían pertenecer al grupo con presencia de los mismos; mientras que para aquellas que contenían NEPs, un 55.0 % (nueve de 20) al grupo de ausencia. Conclusiones: No se observaron diferencias estadísticas entre los hábitats de muestreo seleccionados (P = 0.4296), por lo que se determinó que las tres variables mencionadas anteriormente influyen en la presencia de NEPs y valores altos indican condiciones favorables para su persistencia.Universidad de Costa Rica2020-03-31info:eu-repo/semantics/publishedVersionArticleartículo originalhttp://purl.org/coar/resource_type/c_2df8fbb1info:eu-repo/semantics/articleapplication/pdftext/htmlhttps://revistas.ucr.ac.cr/index.php/rbt/article/view/3768010.15517/rbt.v68i1.37680Revista de Biología Tropical; Vol. 68 No. 1 (2020): Revista de Biología Tropical (Int. J. Trop. Biol.): Continuous publication, January - March 2020; 276–288Revista de Biología Tropical; Vol. 68 Núm. 1 (2020): Revista de Biología Tropical (Int. J. Trop. Biol.): Publicación continua, Enero - Marzo 2020; 276–288Revista Biología Tropical; Vol. 68 N.º 1 (2020): Revista de Biología Tropical (Int. J. Trop. Biol.): Publicación continua, Enero - Marzo 2020; 276–2882215-20750034-774410.15517/rbt.v68i1reponame:Portal de Revistas UCRinstname:Universidad de Costa Ricainstacron:UCRspahttps://revistas.ucr.ac.cr/index.php/rbt/article/view/37680/41262https://revistas.ucr.ac.cr/index.php/rbt/article/view/37680/41300Derechos de autor 2020 Daniela Vidaurre Barahona, Alejandro Rodríguez Morales, Lidieth Uribe Loríohttp://creativecommons.org/licenses/by/4.0acceso abiertohttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccess2023-11-09T20:01:35Zoai:portal.ucr.ac.cr:article/37680Portal de revistashttps://revistas.ucr.ac.cr/Universidadhttp://www.ucr.ac.crhttps://revistas.ucr.ac.cr/index.php/index/oaijorge.polanco@ucr.ac.crCosta RicaNo aplicaNo aplicaNo aplicaopendoar:2025-08-13T10:25:06.766Portal de Revistas UCR - Universidad de Costa Ricafalse |
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15,811543 |