Influences on Fungal Community Composition in Roots and Soil of Coffee and Other Rubiaceae in Costa Rica

Belowground fungi interact with plants directly as pathogens and mutualists, and indirectly as nutrient cyclers, yet the factors governing fungal community composition are poorly understood. Here I examined root and soil fungi of coffee (Coffea arabica) and eight native species in the coffee family...

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Main Author: Sternhagen, Elizabeth Christine
Format: Others
Published: North Dakota State University 2019
Online Access:https://hdl.handle.net/10365/29307
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spelling ndltd-ndsu.edu-oai-library.ndsu.edu-10365-293072020-06-06T15:17:45Z Influences on Fungal Community Composition in Roots and Soil of Coffee and Other Rubiaceae in Costa Rica Influencias en la composici?n de las comunidades de hongos en las raices y los suelos del caf? y otras Rubiaceas en Costa Rica Sternhagen, Elizabeth Christine Belowground fungi interact with plants directly as pathogens and mutualists, and indirectly as nutrient cyclers, yet the factors governing fungal community composition are poorly understood. Here I examined root and soil fungi of coffee (Coffea arabica) and eight native species in the coffee family to determine 1.) whether coffee management affects guild structure of fungal communities in coffee roots and 2.) relative importance of microclimate and plant host relatedness in structuring belowground fungal communities of coffee and forest Rubiaceae. Coffee management resulted in differences in the soil environment that were associated with the richness and abundance of several fungal guilds. Soil environment differed between coffee field and forest habitats. Light availability differed by tree species, and the effect of light niche on fungal community composition was indifferentiable from a host effect. These studies elucidate patterns of belowground fungal community composition related to environment and host and could guide coffee management. Los hongos del subsuelo tienen interacciones directas con las plantas como pat?genos y mutualistas, e indirectas como cicladores de nutrientes, pero los factores que influencian la composici?n de las comunidades de hongos son pocos entendidos. Aqu? estudio hongos en las raices y los suelos del caf? (Coffea arabica) y de ocho especies nativas en la familia del caf? para determinar 1.) si el manejo del caf? afecta la estructura de cofrad?as en comunidades de hongos en las raices del caf? y 2.) la importancia relativa del microclima y la relaci?n filogen?tica en estructurar comunidades de hongos en el subsuelo en el caf? y en arboles nativos en la Rubiaceae que crecen en el bosque. Manejo del caf? cre? diferencias en el ambiente del suelo, y estas diferencias fueron relacionadas con la riqueza y abundancia de varias confrad?as de hongos. Ambiente del suelo se distigui? entre los cafetales y el bosque. Hab?an niveles diferentes de luz entre especies de ?rbol, y el efecto de luz en la composici?n de las comunidades de hongos no se pudo diferenciar con un efecto de la especie de planta. Estes estudios elucidan patrones de la composici?n de las comunidades de hongos en el subsuelo, como est?n relacionados con ambiente y planta hu?sped, y se podr?an usar para guiar el manejo del caf?. 2019-02-22T14:14:30Z 2019-02-22T14:14:30Z 2019 text/thesis https://hdl.handle.net/10365/29307 NDSU Policy 190.6.2 application/pdf North Dakota State University
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description Belowground fungi interact with plants directly as pathogens and mutualists, and indirectly as nutrient cyclers, yet the factors governing fungal community composition are poorly understood. Here I examined root and soil fungi of coffee (Coffea arabica) and eight native species in the coffee family to determine 1.) whether coffee management affects guild structure of fungal communities in coffee roots and 2.) relative importance of microclimate and plant host relatedness in structuring belowground fungal communities of coffee and forest Rubiaceae. Coffee management resulted in differences in the soil environment that were associated with the richness and abundance of several fungal guilds. Soil environment differed between coffee field and forest habitats. Light availability differed by tree species, and the effect of light niche on fungal community composition was indifferentiable from a host effect. These studies elucidate patterns of belowground fungal community composition related to environment and host and could guide coffee management. === Los hongos del subsuelo tienen interacciones directas con las plantas como pat?genos y mutualistas, e indirectas como cicladores de nutrientes, pero los factores que influencian la composici?n de las comunidades de hongos son pocos entendidos. Aqu? estudio hongos en las raices y los suelos del caf? (Coffea arabica) y de ocho especies nativas en la familia del caf? para determinar 1.) si el manejo del caf? afecta la estructura de cofrad?as en comunidades de hongos en las raices del caf? y 2.) la importancia relativa del microclima y la relaci?n filogen?tica en estructurar comunidades de hongos en el subsuelo en el caf? y en arboles nativos en la Rubiaceae que crecen en el bosque. Manejo del caf? cre? diferencias en el ambiente del suelo, y estas diferencias fueron relacionadas con la riqueza y abundancia de varias confrad?as de hongos. Ambiente del suelo se distigui? entre los cafetales y el bosque. Hab?an niveles diferentes de luz entre especies de ?rbol, y el efecto de luz en la composici?n de las comunidades de hongos no se pudo diferenciar con un efecto de la especie de planta. Estes estudios elucidan patrones de la composici?n de las comunidades de hongos en el subsuelo, como est?n relacionados con ambiente y planta hu?sped, y se podr?an usar para guiar el manejo del caf?.
author Sternhagen, Elizabeth Christine
spellingShingle Sternhagen, Elizabeth Christine
Influences on Fungal Community Composition in Roots and Soil of Coffee and Other Rubiaceae in Costa Rica
author_facet Sternhagen, Elizabeth Christine
author_sort Sternhagen, Elizabeth Christine
title Influences on Fungal Community Composition in Roots and Soil of Coffee and Other Rubiaceae in Costa Rica
title_short Influences on Fungal Community Composition in Roots and Soil of Coffee and Other Rubiaceae in Costa Rica
title_full Influences on Fungal Community Composition in Roots and Soil of Coffee and Other Rubiaceae in Costa Rica
title_fullStr Influences on Fungal Community Composition in Roots and Soil of Coffee and Other Rubiaceae in Costa Rica
title_full_unstemmed Influences on Fungal Community Composition in Roots and Soil of Coffee and Other Rubiaceae in Costa Rica
title_sort influences on fungal community composition in roots and soil of coffee and other rubiaceae in costa rica
publisher North Dakota State University
publishDate 2019
url https://hdl.handle.net/10365/29307
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