Now showing items 1-10 of 10

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      Deciphering the Symbiotic Significance of Quorum Sensing Systems of Sinorhizobium fredii HH103  [Article]

      Acosta Jurado, Sebastián; Alías Villegas, Cynthia; Espuny Gómez, María del Rosario; Vinardell González, José María; Pérez Montaño, Francisco de Asís (MDPI, 2020)
      Quorum sensing (QS) is a bacterial cell-to-cell signaling mechanism that collectively regulates and synchronizes behaviors by means of small diffusible chemical molecules. In rhizobia, QS systems usually relies on the ...
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      Diversity of Sinorhizobium (Ensifer) meliloti Bacteriophages in the Rhizosphere of Medicago marina: Myoviruses, Filamentous and N4-Like Podovirus  [Article]

      Cubo Sánchez, María Teresa; Alías Villegas, Cynthia; Balsanelli, Eduardo; Mesa, Dany; Espuny Gómez, María del Rosario; Souza, Emanuel de (Frontiers Media, 2020)
      Using different Sinorhizobium meliloti strains as hosts, we isolated eight new virulent phages from the rhizosphere of the coastal legume Medicago marina. Half of the isolated phages showed a very narrow host range while ...
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      Inactivation of the "Sinorhizobium fredii" HH103 "rhcJ" gene abolishes nodulation outer proteins (Nops) secretion and decreases the symbiotic capacity with soybean  [Article]

      Vinardell González, José María; Lyra, Maria do C. C. P. de; López Baena, Francisco Javier; Madinabeitia Peiró, Nuria; Espuny Gómez, María del Rosario; Cubo Sánchez, María Teresa; Bellogín Izquierdo, Ramón Andrés; Ruiz Sainz, José Enrique; Ollero Márquez, Francisco Javier (Sociedad Española de Microbiología, Viguera Editores, 2006)
      Se ha propuesto que las proteínas externas de nodulación (Nops) impiden la nodulación efectiva de Sinorhizobium fredii USDA257 con las sojas americanas. S. fredii HH103 nodula de forma natural tanto conlas sojas asiáticas ...
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      Nodulation-gene-inducing flavonoids increase overall production of autoinducers and expression of N-acyl homoserine lactone synthesis genes in rhizobia  [Article]

      Pérez Montaño, Francisco de Asís; Guasch Vidal, Beatriz; González Barroso, Sergio; López Baena, Francisco Javier; Cubo Sánchez, María Teresa; Ollero Márquez, Francisco Javier; Gil Serrano, Antonio Miguel; Rodríguez Carvajal, Miguel Ángel; Bellogín Izquierdo, Ramón Andrés; Espuny Gómez, María del Rosario (2011)
      Legume-nodulating rhizobia use N-acyl homoserine lactones (AHLs) to regulate several physiological traits related to the symbiotic plant–microbe interaction. In this work, we show that Sinorhizobium fredii SMH12, Rhizobium ...
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      NolR Regulates Diverse Symbiotic Signals of Sinorhizobium fredii HH103  [Article]

      Vinardell González, José María; Ollero Márquez, Francisco Javier; Hidalgo Perea, Ángeles; López Baena, Francisco Javier; Medina Morillas, Carlos; Vangelov, Kalojan Ivanov; Parada, Maribel; Madinabeitia Peiró, Nuria; Espuny Gómez, María del Rosario; Bellogín Izquierdo, Ramón Andrés; Soria Díaz, María Eugenia; Gil Serrano, Antonio Miguel; Ruiz Sainz, José Enrique (The American Phytopathological Society, 2004)
      We have investigated in Sinorhizobium fredii HH103-1 (=HH103 Strr ) the influence of the nolR gene on the production of three different bacterial symbiotic signals: Nod factors, signal responsive (SR) proteins, and ...
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      Opening the "black box" of nodD3, nodD4 and nodD5 genes of Rhizobium tropici strain CIAT 899  [Article]

      Cerro Sánchez, Pablo del; Rolla-Santos, Amanda Alves Paiva; Gomes, Douglas Fabiano; Berquó Marks, Bettina; Espuny Gómez, María del Rosario; Rodríguez Carvajal, Miguel Ángel; Soria Díaz, María Eugenia; Shigueyoshi Nakatani, André; Hungria, Mariangela; Ollero Márquez, Francisco Javier; Megías Guijo, Manuel (BioMed Central, 2015)
      Background: Transcription of nodulation genes in rhizobial species is orchestrated by the regulatory nodD gene. Rhizobium tropici strain CIAT 899 is an intriguing species in possessing features such as broad host range, ...
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      Plant growth promotion in cereal and leguminous agricultural important plants: From microorganism capacities to crop production  [Article]

      Pérez Montaño, Francisco de Asís; Alias Villegas, Cynthia Victoria; Bellogín Izquierdo, Ramón Andrés; Cerro Sánchez, Pablo del; Espuny Gómez, María del Rosario; Jiménez Guerrero, Irene; López Baena, Francisco Javier; Ollero Márquez, Francisco Javier; Cubo Sánchez, María Teresa (2014)
      Plant growth-promoting rhizobacteria (PGPR) are free-living bacteria which actively colonize plant roots, exerting beneficial effects on plant development. The PGPR may (i) promote the plant growth either by using their ...
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      Regulation and symbiotic significance of nodulation outer proteins secretion in Sinorhizobium fredii HH103  [Article]

      López Baena, Francisco Javier; Vinardell González, José María; Pérez Montaño, Francisco de Asís; Crespo Rivas, Juan Carlos; Bellogín Izquierdo, Ramón Andrés; Espuny Gómez, María del Rosario; Ollero Márquez, Francisco Javier (2008)
      In this work we show that the Sinorhizobium fredii HH103 ttsI gene is essential for the expression of the tts genes and secretion of nodulation outer proteins (Nops). Moreover, we demonstrate for the first time, to our ...
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      Rice and bean AHL-mimic quorum-sensing signals specifically interfere with the capacity to form biofilms by plant-associated bacteria  [Article]

      Pérez Montaño, Francisco de Asís; Jiménez Guerrero, Irene; Contreras Sánchez-Matamoros, Rocío; López Baena, Francisco Javier; Ollero Márquez, Francisco Javier; Rodríguez Carvajal, Miguel Ángel; Bellogín Izquierdo, Ramón Andrés; Espuny Gómez, María del Rosario (2013)
      Many bacteria regulate their gene expression in response to changes in their population density in a process called quorum sensing (QS), which involves communication between cells mediated by small diffusible signal molecules ...
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      The symbiotic biofilm of Sinorhizobium fredii SMH12, necessary for successful colonization and symbiosis of glycine max cv osumi, is regulated by quorum sensing systems and inducing Flavonoids via NodD1  [Article]

      Pérez Montaño, Francisco de Asís; Jiménez Guerrero, Irene; Cerro Sánchez, Pablo del; Baena Ropero, Irene; López Baena, Francisco Javier; Ollero Márquez, Francisco Javier; Bellogín Izquierdo, Ramón Andrés; Lloret, Javier; Espuny Gómez, María del Rosario (2014)
      Bacterial surface components, especially exopolysaccharides, in combination with bacterial Quorum Sensing signals are crucial for the formation of biofilms in most species studied so far. Biofilm formation allows soil ...