A gene encoding chitinase from Serratia marcescens BJL200 was cloned into a broad-host-range vector (pRK415) and mobilized into Sinorhizobium fredii USDA191. Chitinolytic activity was detected in S. fredii USDA191 transconjugants that carried the S. marcescens chiB gene. Chitinase-producing S. fredii USDA191 formed nodules on soybean cultivar McCall. However, there was a delay in nodule formati...

1 Global AIDS Program, U.S. Centers for Disease Control and Prevention, Hanoi, Vietnam, 2 Division of Tuberculosis Elimination, U.S. Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America, 3 An Giang Province Preventive Medical Center, Long Xuyen City, Vietnam, 4 National Hospital of Tuberculosis and Lung Diseases, Vietnam National TB Program, Ministry of Health,...

Lucerne is regarded as the best legume crop for forage to be cultivated in South Africa. It commonly used produce good quality hay. also plays an important role soil conservation, regeneration, and rotation systems it supplies substantial amounts of nitrogen succeeding crops through symbiotic N2 fixation, which makes preferable choice intensive production systems. Fertilizer liquid inoculant fo...

Cohesive ends of 16-3, a temperate phage of Rhizobium meliloti 41, have been identified as 10-base-long, 3'-protruding complementary G/C-rich sequences. terS and terL encode the two subunits of 16-3 terminase. Significant homologies were detected among the terminase subunits of phage 16-3 and other phages from various ecosystems.

The RNA Polymerase Subunit from Sinorhizobium meliloti Can Assemble with RNA Polymerase Subunits from Escherichia coli and Function in Basal and Activated Transcription both In Vivo and In Vitro Melicent C. Peck, Tamas Gaal, Robert F. Fisher, Richard L. Gourse, and Sharon R. Long* Department of Biological Sciences, Stanford University, Stanford, California 94305, and Department of Bacteriology,...

We determined the structures of Nod factors produced by six different Bradyrhizobium sp. strains nodulating the legume tree Acacia albida (syn. Faidherbia albida). Compounds from all strains were found to be similar, i.e., O-carbamoylated and substituted by an often sulfated methyl fucose and different from compounds produced by Rhizobium-Mesorhizobium-Sinorhizobium strains nodulating other spe...

Expression of the inner membrane protein FoxB (PA2465) of Pseudomonas aeruginosa in mutants of Sinorhizobium meliloti that are defective in the utilization of ferrichrome, ferrioxamine B, and schizokinen resulted in the restoration of siderophore utilization. Mutagenesis of foxB in P. aeruginosa did not abolish siderophore utilization, suggesting that the function is redundant.