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Exopolysaccharide-deficient mutants of Astragali rhizobia are symbiotically effective on Astragalus sinicus , an indeterminate nodulating host[J] . Hancai Chen,Bei-Guo Long,Hong-Yu Song.Plant and Soil . 1996 (2)
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Five genetic loci involved in the synthesis of acidic exopolysaccharides are closely linked in the genome of Rhizobium sp strain NGR234[J] . Hancai Chen,James X. Gray,Murali Nayudu,Michael A. Djordjevic,Michael Batley,John W. Redmond,Barry G. Rolfe.MGG Molecular & General Genetics . 1988 (2)
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ANALYSIS OF R-PRIMES DEMONSTRATES THAT GENES FOR BROAD HOST RANGE NODULATION OF RHIZOBIUM STRAIN NGR234 ARE DISPERSED ON THE SYM PLASMID
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Construction and characterization of R-prime plasmids carrying symbiotic genes of R. meliloti[J] . Zsófia Bánfalvi,Gursharan S. Randhawa,éva Kondorosi,Antal Kiss,ádám Kondorosi.MGG Molecular & General Genetics . 1983 (1)