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Memorias de investigación
Ponencias en congresos:
Diversity of type six secretion system (T6SS) in rhizobia
Año:2019
Áreas de investigación
  • Ciencias naturales y ciencias de la salud
Datos
Descripción
The bacterial Type VI secretion system (T6SS) is a molecular nanosyringe able to inject effector proteins directly into prokaryotic or eukaryotic cells. Most of the proteins related to T6SS (effectors, components of the nanosyringe and regulatory proteins and chaperones) are frequently encode by clustered genes (Lien and Lai, 2017). Recently it has been shown that this system has a positive effect on the Rhizobium-beans symbiosis (Salinero-Lanzarote et al, 2019). Many of the proteins of the nanosyringes are conserved between different bacteria and orthologs have been identified from the proteomes deduced from sequenced rhizobia. In this work, a phylogenetic analysis of the rhizobial T6SS was carried out using the amino acid sequence of TssB, a core element of the contractile tube of the nanosyringes. The results showed 4 main groups. Group 1 includes species belonging to the Rhizobium genus such as R. leguminosarum and R. etli. Group 2 contains two subgroups, the first consisting of amino acid sequences of genera Rhizobium, Neorhizobium, Sinorhizobium, Ochrobactrum and Azorhizobium. The second subgroup included the TssB from Methylobacterium nodulans, R. etli CIAT552, R. phaseoli Ch24-10 and Paraburkholderia phymatum STM815. It can be emphasized that the last three strains have two T6SS, and their second TssB are located in group 4. Group 4 is the most diverse and covers also strains from Mesorhizobium, Bradyrhizobium, Devosia, Bosea and Cupriavidus genera. Group 3 is represented only by strains of the genus Bradyrhizobium. On the other hand, in this work we compare the genetic organizations of the different groups with emphasis on the conserved genes and especially on the possible effectors where the diversity is very large both among TssB groups and among rhizobial strains.
Internacional
Si
Nombre congreso
VI Portuguese-Spanish Congress on Nitrogen Fixation XVII National Meeting of the Spanish Society of Nitrogen Fixation
Tipo de participación
960
Lugar del congreso
Madrid
Revisores
Si
ISBN o ISSN
978-84-8344-705-5
DOI
Fecha inicio congreso
10/06/2019
Fecha fin congreso
12/06/2019
Desde la página
46
Hasta la página
46
Título de las actas
Biological Nitrogen Fixation and Plant-Associated Microorganisms
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: Bruna Silva de Sousa . (UPM)
  • Autor: Lucia Domingo Serrano
  • Autor: Alvaro Salinero Lanzarote
  • Autor: Aitor Díaz de Agustin
  • Autor: Joaquin Giner Lamia (UPM)
  • Autor: Jose Manuel Palacios Alberti (UPM)
  • Autor: Luis Rey Navarro (UPM)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Abordajes Multidisciplinares en la Interfaz Planta-Microorganismo
  • Departamento: Biotecnología - Biología Vegetal
  • Centro o Instituto I+D+i: Centro de Biotecnología y Genómica de Plantas, CBGP
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