Ítem
Acceso Abierto
Forest root endophytes of pioneer plants from premontane forest in Colombia
| dc.contributor.advisor | Corrales Osorio, Adriana | |
| dc.contributor.advisor | Gazis, Romina | |
| dc.creator | Rengifo Cajias, Laura | |
| dc.creator.degree | Biólogo | es |
| dc.creator.degreeLevel | Pregrado | |
| dc.creator.degreetype | Full time | es |
| dc.date.accessioned | 2021-09-14T12:40:38Z | |
| dc.date.available | 2021-09-14T12:40:38Z | |
| dc.date.created | 2021-09-01 | |
| dc.description | Los hongos endofíticos son aquellos que durante todo o parte de su ciclo de vida colonizan los tejidos de la planta formando diferentes relaciones con la planta hospedera que van desde mutualistas hasta patógenas. Se ha descubierto que algunos de estos hongos influyen en el establecimiento de especies pioneras. Se desarrolló un marco teórico preliminar, probado en un pequeño conjunto de especies hospedadoras, para iniciar una conversación sobre las compensaciones presentes en los hongos asociados a las raíces. Para ello, se aislaron hongos de cuatro plantas: Quercus humboldtii, Bambusa sp, Cecropia sp. y Oreopanax parviflorus, identificados molecular y filogenéticamente; se midieron rasgos funcionales importantes para la colonización del huésped. Estos rasgos incluyen la tasa de crecimiento, el diámetro hifal, la coloración hifal, el contenido citoplasmático hifal, el color del micelio y la biomasa. Finalmente, se realizaron análisis estadísticos para identificar las correlaciones entre los rasgos relativos al huésped y al hábitat. Se obtuvieron un total de 41 cultivos de endófitos radiculares de las cuatro especies de plantas, que comprenden veinticinco especies, todas ellas pertenecientes a los Ascomycetes. Todos los aislados, excepto Cadophora sp, presentaron tasas de crecimiento in vitro similares. El análisis de la coloración hifal, que presentó sólo una diferencia marginalmente significativa entre los aislados, sugiere un importante papel de la melanina en el crecimiento de estos hongos. También se encontró una posible relación no lineal entre el diámetro de las hifas y la tasa de crecimiento. Por último, puede haber posibles grupos funcionales caracterizados por una biomasa densa y otra escasa. Nuestros resultados son preliminares; sin embargo, este es un primer paso en la comprensión de la ecología funcional de los endófitos de las raíces asociados a especies de plantas pioneras tropicales. | es |
| dc.description.abstract | Endophytic fungi are those that throughout or part of their life cycle colonize plant tissues forming different relationships with the host plant ranging from mutualistic to pathogenic. Some of these fungi have been found to influence the establishment of pioneer species. Using a preliminary theoretical framework, tested on a small set of host species, was developed to jump start a conversation about the trade-offs present in root-associated fungi. To this end, fungi were isolated from four plants: Quercus humboldtii, Bambusa sp, Cecropia sp. and Oreopanax parviflorus, identified molecularly and phylogenetically; functional traits important for host colonization were measured. These traits include growth rate, hyphal diameter, hyphal coloration, hyphal cytoplasmic content, mycelial color, and biomass. Finally, statistical analyses were performed to identify correlations among the traits regarding the host and habitat. A total of 41 root endophyte cultures were obtained from the four plant species, comprising twenty-five species, all of them belonging to the Ascomycetes. All the isolates, except for Cadophora sp, presented similar in-vitro growth rates. The analysis of the hyphal coloration, which presented only a marginally significant difference among isolates, suggest an important role of melanin in the growth of these fungi. A potential non-linear relationship between hyphal diameter and growth rate was also found. Finally, there may be possible functional groups characterized by dense and sparse biomass. Our results are preliminary; however, this is a first step in understanding the functional ecology of root endophytes associated with tropical pioneer plant species. | es |
| dc.format.extent | 21 pp. | es |
| dc.format.mimetype | application/pdf | es |
| dc.identifier.doi | https://doi.org/10.48713/10336_32421 | |
| dc.identifier.uri | https://repository.urosario.edu.co/handle/10336/32421 | |
| dc.language.iso | eng | es |
| dc.publisher | Universidad del Rosario | |
| dc.publisher.department | Facultad de Ciencias Naturales | |
| dc.publisher.program | Biología | |
| dc.rights | Atribución-SinDerivadas 2.5 Colombia | * |
| dc.rights.accesRights | info:eu-repo/semantics/openAccess | es |
| dc.rights.acceso | Abierto (Texto Completo) | es |
| dc.rights.licencia | EL AUTOR, manifiesta que la obra objeto de la presente autorización es original y la realizó sin violar o usurpar derechos de autor de terceros, por lo tanto la obra es de exclusiva autoría y tiene la titularidad sobre la misma. | spa |
| dc.rights.uri | http://creativecommons.org/licenses/by-nd/2.5/co/ | * |
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| dc.source.instname | instname:Universidad del Rosario | |
| dc.source.reponame | reponame:Repositorio Institucional EdocUR | |
| dc.subject | Endófitos de raíz | es |
| dc.subject | Plantas pioneras | es |
| dc.subject | Bosque premontano | es |
| dc.subject | Análisis de la Ecología funcional de los hongos endofíticos | es |
| dc.subject | Identificación molecular de hongos endofíticos | es |
| dc.subject.ddc | Ciencias botánicas | es |
| dc.subject.keyword | Root endophytes | es |
| dc.subject.keyword | Pioneer plants | es |
| dc.subject.keyword | Premontane forest | es |
| dc.subject.keyword | Analysis of the functional ecology of endophytic fungi | es |
| dc.subject.keyword | Molecular identification of endophytic fungi | es |
| dc.title | Forest root endophytes of pioneer plants from premontane forest in Colombia | es |
| dc.title.TranslatedTitle | Hongos endófitos asociados a raíces de plantas pioneras del bosque premontano en Colombia | es |
| dc.type | bachelorThesis | eng |
| dc.type.document | Artículo | es |
| dc.type.hasVersion | info:eu-repo/semantics/acceptedVersion | |
| dc.type.spa | Trabajo de grado | spa |
