Lyra F . Javier López -
نویسندگان
چکیده
It has been postulated that nodulation outer proteins (Nops) avoid effective nodulation of Sinorhizobium fredii USDA257 to nodulate with American soybeans. S. fredii HH103 naturally nodulates with both Asiatic (non-commercial) and American (commercial) soybeans. Inactivation of the S. fredii HH103 gene rhcJ, which belongs to the tts (type III secretion) cluster, abolished Nop secretion and decreased its symbiotic capacity with the two varieties of soybeans. S. fredii strains HH103 and USDA257, that only nodulates with Asian soybeans, showed different SDS-PAGE Nop profiles, indicating that these strains secrete different sets of Nops. In coinoculation experiments, the presence of strain USDA257 provoked a clear reduction of the nodulation ability of strain HH103 with the American soybean cultivar Williams. These results suggest that S. fredii Nops can act as either detrimental or beneficial symbiotic factors in a strain-cultivar-dependent manner. Differences in the flavonoid-mediated expression of rhcJ with respect to nodA were also detected. In addition, one of the Nops secreted by strain HH103 was identified as NopA. [Int Microbiol 2006; 9(2):125-133]
منابع مشابه
LYMPHOID NEOPLASIA e-Blood A molecular risk score based on 4 functional pathways for advanced classical Hodgkin lymphoma
*Beatriz Sánchez-Espiridión,1 *Carlos Montalbán,2 Ángel López,1 Javier Menárguez,3 Pilar Sabín,3 Carmen Ruiz-Marcellán,4 Andrés Lopez,4 Rafael Ramos,5 Jose Rodríguez,5 Araceli Cánovas,6 Carmen Camarero,6 Miguel Canales,7 Javier Alves,7 Reyes Arranz,8 Agustín Acevedo,8 Antonio Salar,9 Sergio Serrano,9 Águeda Bas,10 Jose M. Moraleda,10 Pedro Sánchez-Godoy,11 Fernando Burgos,11 Concepción Rayón,12...
متن کاملUse of Antihypertensive Drugs in Spain: National Trends From 2000 to 2012.
Soraya Merchán,* Javier Martı́n-Moreiras, Aitor Uribarri, Javier López, Leyre Reta, and Pedro L. Sánchez oxigenación extracorpórea: una nueva alternativa al rescate del shock cardiogénico refractario. Rev Esp Cardiol. 2013;66:501–3. 2. Dı́ez-Villanueva P, Sousa I, Núñez A, Dı́ez F, Elı́zaga J, Fernández-Avilés F. Tratamiento precoz del shock cardiogénico refractario mediante implante perServicio de...
متن کاملPostictal sneeze: An old but still under-recognized epileptic symptom
Xiana Rodrı́guez-Osorio *, Javier López-González , Ana López-Ferreiro , José Marı́a Domı́nguez-Lorenzo , Manuel Peleteiro-Fernández b Department of Neurology, Hospital Clı́nico Universitario de Santiago de Compostela, Travesa da Choupana s/n, CP 15706, Santiago de Compostela, Spain Department of Neurophysiology, Hospital Clı́nico Universitario de Santiago de Compostela, Travesa da Choupana s/n, CP 1...
متن کاملCalibrating the elements of a multispectral imaging system
Calibrating the elements of a multispectral imaging system. Miguel A. López-Álvarez, Javier Hernández-Andrés, Javier Romero, Joaquín Campos and Alicia Pons. Large Format Printing Division, Hewlett-Packard Spain, 08174 Sant Cugat del Vallès, Barcelona, SPAIN. [email protected] Color Imaging Laboratory, Departamento de Óptica, Universidad de Granada, 18071 Granada, SPAIN. [email protected], jromero@u...
متن کامل