General Information: Country: Italy; Environment: Host, Rhizosphere, Root nodule, Soil; Isolation: 5 km before Bottida, Sardinia; Temp: Mesophile. Mesorhizobium species are fast-growing rhizobia. Strains generally form nitrogen-fixing nodules on the roots of a restricted range of leguminous plants. Mesorhizobium ciceri nodulates chickpeas.