Biosynthesis of cyclic β-(1,2)-glucans in Rhizobium leguminosarum biovars viciae, phaseoli and trifolii

Olga A. Castro, Angeles Zorreguieta, Carlos Semino, Luis Ielpi

Producción científica: Artículo en revista indizadaArtículorevisión exhaustiva

2 Citas (Scopus)

Resumen

Inner membranes of Rhizobium leguminosarum biovars viciae, phaseoli, and trifolii synthesized a heterogenous family of neutral cyclic β-(1,2)-glucans in a reaction system that used oligosaccharide intermediates covalently bound to a large protein. This glucoprotein showed a slightly lower mobility on SDS-polyacrylamide gels (apparent mol. mass of 320 kDa) than the β-(1,2)-glucan intermediate protein of Rhizobium meliloti. In vivo pulse-label experiments with growing cells of R. leguminosarum biovar trifolii RS800 using radioactive glucose showed that few species of cyclic β-(1,2)-glucans were synthesized and up to 30% were substituted with charged non-glycosidic residues, probably sn-1-phosphoglycerol.

Idioma originalInglés
Páginas (desde-hasta)454-462
Número de páginas9
PublicaciónArchives of Microbiology
Volumen163
N.º6
DOI
EstadoPublicada - jun 1995
Publicado de forma externa

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