Observatorio de I+D+i UPM

Memorias de investigación
Communications at congresses:
Structural and regulatory analysis of quorum sensing in Rhizobium leguminosarum
Year:2010
Research Areas
  • Molecular, cellular and genetic biology
Information
Abstract
Structural analysis through HPLC / mass spectrometry (3) revealed that the signals produced by Rl UPM791 correspond to: C6-HSL, C7-HSL and C8-HSL, produced by rhiRI; 3OH-C14-HSL, a bacteriocin synthesized by the chromosomically-located system cinRI; also, small amounts of C4-HSL have been detected. To study the role of these quorum sensing signals in Rhizobium-legume symbiosis, different competition assays for nodulation of pea roots by Rl UPM791, Rl 3841 and derivative strains affected in AHL production have been carried out. This analysis revealed that disruption of bacterial quorum sensing signaling significantly affects the competitiveness of strain Rl UPM791 vs Rl 3841, suggesting a relevant role of AHLs in nodule occupancy.
International
Si
Congress
9th European Nitrogen Fixation conference
960
Place
Ginebra, Suiza
Reviewers
Si
ISBN/ISSN
0000-0000
Start Date
06/09/2010
End Date
10/09/2010
From page
171
To page
171
Book of Abstracts 9th European Nitrogen Fixation Conference
Participants
  • Autor: Carmen Sánchez Cañizares (UPM)
  • Participante: Juan Imperial Ródenas (CSIC)
  • Autor: Antonio Dionisio Morata Barrado (UPM)
  • Participante: Laura Cantero Salazar (Centro de Investigacion Principe Felipe-Generalitat de Valencia)
  • Autor: Jose Manuel Palacios Alberti (UPM)
  • Autor: Tomas-Andres Ruiz Argueso (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Asociaciones simbióticas planta-microorganismo
  • Grupo de Investigación: Enología, Enotécnia y Biotecnología Enológica
  • Centro o Instituto I+D+i: Centro de Biotecnología y Genómica de Plantas, CBGP
  • Departamento: Tecnología de Alimentos
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