Efecto de la Infección por Albugo sp. en poblaciones silvestres de Arabidopsis thaliana

Taguas Garzón, Ignacio (2019). Efecto de la Infección por Albugo sp. en poblaciones silvestres de Arabidopsis thaliana. Proyecto Fin de Carrera / Trabajo Fin de Grado, E.T.S. de Ingeniería Agronómica, Alimentaria y de Biosistemas (UPM), Madrid.

Description

Title: Efecto de la Infección por Albugo sp. en poblaciones silvestres de Arabidopsis thaliana
Author/s:
  • Taguas Garzón, Ignacio
Contributor/s:
  • García-Arenal Rodríguez, Fernando
Item Type: Final Project
Degree: Grado en Biotecnología
Date: June 2019
Subjects:
Faculty: E.T.S. de Ingeniería Agronómica, Alimentaria y de Biosistemas (UPM)
Department: Biotecnología - Biología Vegetal
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Traditionally, the study of plant disease epidemics on wild plant populations has not been a primary focus of interest amongst pathologists and agronomists, consequently being a largely unknown field. However, there are many reasons why the study of disease in natural plant communities is of importance. For instance, wild plants are potential sources of disease inoculum for crops, as a cause of weed-to-crop movement of pathogens. Additionally, the high genetic diversity of wild populations for resistance/susceptibility factors may lead to disease dynamics whose knowledge may be useful for managing disease resistance in crops. Another reason to study disease in wild populations is the need to prevent or control epidemics in exploited beneficial wild populations. Plant-pathogen co-evolution is widely assumed to occur, but the negative effects of infection on wild plant fitness, a prerequisite for co-evolution, has rarely been demonstrated. The general aim of this project is the estimation of the effect of the infection caused by a parasite on a wild plant population, focused on the study of the pathosystem Arabidopsis thaliana – Albugo sp. For this purpose, field data collected in 2016 at a wild population of Arabidopsis thaliana located in Central Spain where used to estimate epidemiological parameters and the effects of infection of host fitness and population dynamics. Results allow to conclude that: 1) Albugo sp. has low efficiency of infection in the Arabidopsis population, 2) Albugo sp. infection has a negative effect on survival and reproduction of Arabidopsis thaliana plants, mitigated by tolerance reactions that depend on environmental conditions, 3) despite the fact that Albugo sp. infection may affect its host’s population genetic composition, it does not affect its dynamics and 4) Albugo sp. infection might be favoured by Albugo sp. – cucumber mosaic virus coinfection.

More information

Item ID: 57585
DC Identifier: http://oa.upm.es/57585/
OAI Identifier: oai:oa.upm.es:57585
Deposited by: Biblioteca ETSI Agrónomos
Deposited on: 31 Dec 2019 08:08
Last Modified: 31 Dec 2019 08:08
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