Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Resistance to Dutch elm disease reduces presence of xylem endophytic fungi in elms (Ulmus spp.)
Year:2013
Research Areas
  • Natural sciences and health sciences
Information
Abstract
Efforts to introduce pathogen resistance into landscape tree species by breeding may have unintended consequences for fungal diversity. To address this issue, we compared the frequency and diversity of endophytic fungi and defensive phenolic metabolites in elm (Ulmus spp.) trees with genotypes known to differ in resistance to Dutch elm disease. Our results indicate that resistant U. minor and U. pumila genotypes exhibit a lower frequency and diversity of fungal endophytes in the xylem than susceptible U. minor genotypes. However, resistant and susceptible genotypes showed a similar frequency and diversity of endophytes in the leaves and bark. The resistant and susceptible genotypes could be discriminated on the basis of the phenolic profile of the xylem, but not on basis of phenolics in the leaves or bark. As the Dutch elm disease pathogen develops within xylem tissues, the defensive chemistry of resistant elm genotypes thus appears to be one of the factors that may limit colonization by both the pathogen and endophytes. We discuss a potential trade-off between the benefits of breeding resistance into tree species, versus concomitant losses of fungal endophytes and the ecosystem services they provide.
International
Si
JCR
Si
Title
Plos One
ISBN
1932-6203
Impact factor JCR
3,73
Impact info
Volume
8
10.1371/journal.pone.0056987
Journal number
2
From page
e56987
To page
e56987
Month
FEBRERO
Ranking
7/56 (Multidisciplinary Sciences)
Participants
  • Autor: Juan Antonio Martin Garcia (UPM)
  • Autor: Johanna Witzell
  • Autor: Kathrin Blumenstein
  • Autor: Elzbieta Rozedowska
  • Autor: Marjo Helander
  • Autor: Thomas N. Sieber
  • Autor: Luis Alfonso Gil Sanchez (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Genética y Fisiología Forestal
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