Observatorio de I+D+i UPM

Memorias de investigación
Communications at congresses:
A new discovered mutualistic interaction in natural populations of Arabidopsis thaliana
Year:2014
Research Areas
  • Agua,
  • Fungal diseases of plants
Information
Abstract
The symbiotic continuum in the interactions between plants and fungi is very well exemplified by endophytes. The term ?fungal endophyte? refers to fungi which can live at least part of their life cycle inter- or intracellularly inside of plants, usually without inducing pathogenic symptoms. Endophytes can have several functions or may change function during their lifecycle. The phenotypic plasticity of some endophytes is remarkable, with cases where the same isolate can behave as mutualist, commensal or antagonist depending on the host genotype or the environmental conditions. There are many works studying the occurrence, diversity and distribution of fungal endophytes. However, in most of the cases, the type of interaction that the isolated or detected endophytes are establishing with the host plant is not known. We have surveyed different populations of A. thaliana from Central Spain, with the isolation of a high diverse number of fungal species from surface-desinfected samples from asymptomatic plants. Species of the most abundant genera were chosen in order to set into a point their inoculation on A. thaliana under controlled conditions and investigate the outcome of the interactions. We have found that isolates of the species Colletotrichum tofieldiae show a mutualistic interaction with the plant, increasing the seed production of inoculated plants. These are the first known mututalistic Colletotrichum endophytes naturally infecting A. thaliana. We have focused our study on this species in order to go in depth in the understanding of the principles of the endophytic lifestyle.
International
Si
Congress
XVI International Congress on Molecular Plant-Microbe interactions
960
Place
Rodas (Grecia)
Reviewers
Si
ISBN/ISSN
000-00-0000-000-0
Start Date
06/07/2014
End Date
10/07/2014
From page
239
To page
239
XVI International Congress on Molecular Plant-Microbe interactions
Participants
  • Autor: Diana Ramírez (UPM)
  • Autor: Evelin E. Cueva (UPM)
  • Autor: M. Brisa Ramos Martinez (UPM)
  • Autor: Kei Hiruma (Max Planck Institute for Plant Breeding Research)
  • Autor: Antonio Molina Fernandez (UPM)
  • Autor: Richard O'Connell (INRA-AgroParisTech)
  • Autor: Paul Schulze-Lefert (Max Planck Institute for Plant Breeding Research)
  • Autor: Soledad Sacristan Benayas (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Patología Vegetal
  • Grupo de Investigación: Interacciones Moleculares Planta-Patógeno
  • Centro o Instituto I+D+i: Centro de Biotecnología y Genómica de Plantas, CBGP
  • Departamento: Biotecnología - Biología Vegetal
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