Rhizobium-legume symbiosis begins with two free living organisms, and ends with an intimate cellular co-existence. Rhizobium bacteria recognize specific plants, provoke development of a root nodule, and invade the plant tissue. Eventually, the Rhizobium cell transfers itself into a host cell, surrounds itself with plant membrane, and arranges a nutrient exchange in which the bacteria brings fix...

Minute 3. New taxa. New taxa described since the last meeting on 4 July 2001 are Bradyrhizobium yuanmingense Yao et al. [Int J Syst Evol Microbiol 52 (2002), 2219–2230], Bradyrhizobium betae Rivas et al. [Int J Syst Evol Microbiol 54 (2004), 1271–1275], Rhizobium indigoferae Wei et al. [Int J Syst Evol Microbiol 52 (2002), 2231–2239], Rhizobium loessense Wei et al. [Int J Syst Evol Microbiol 53...

We compared the nodulation competitiveness of three strains of Rhizobium leguminosarum by counting the number of nodules formed on faba bean plants after the application at sowing time of different concentrations of the strains to soils already containing Rhizobium strains of the same species. A relationship of type y = ax was found to exist between the ratio of the nodules formed by the applie...

Twenty six Rhizobium strains were isolated from root nodules of Sesbania sesban (L.) Merr. collected from different regions of Andhra Pradesh. All the 26 Rhizobium strains produced indole acetic acid (IAA), but maximum amount was produced by only five strains in yeast extract mannitol  (YEM) medium supplemented with L-tryptophan. The strains were found to elaborate maximum IAA when fed with 2.5...

A glyceollin I accumulation o f about 6000 pmol • mg dry weight, a tenfold increase above control root tissue, was found in one type o f nodule from Glycine max which had been infected with a fix~ strain (61-A-24) o f Rhizobium japonicum. In nodules infected with one other ineffective (ßx~) strain o f Rhizobium japonicum (RH 31-Marburg) or with two f i x + strains o f Rhizobium japonicum (61 -A...

Bacterial strains and growth conditions. Fast-growing soybean Rhizobium strains USDA 191, USDA 192, USDA 193, USDA 194, USDA 201, USDA 205, USDA 206, USDA 208, USDA 214, USDA 217, and USDA 257 were isolated from soil or nodules collected in the PRC (20). Slow-growing soybean rhizobium strains PRC 005, PRC 74, PRC 113-2, PRC121-6, PRC 2031, and PRC B15, were oHtained from T. S. Hu, Institute of ...

B ernhard Epping, A lexander P. H ansen, Bahm an Djalali and Peter M artin Institut für Pflanzenernährung (330), Universität Hohenheim, Fruwirthstraße 20, D-70593 Stuttgart, Bundesrepublik Deutschland Z. Naturforsch. 49c, 343-351 (1994); received February 4, 1994 Phaseolus vulgaris L., Plant x Bacterium Interaction, Rhizobium leguminosarum bv. phaseoli, Rhizobium tropici, Symbiotic Effectivity ...