Mesorhizobium temperatum is a gram-negative, aerobic, non-spore-forming bacterium from the genus Mesorhizobium which was isolated from Astragalus adsurgens which were found in northern regions of China. References External links Type strain of Mesorhizobium temperatum at BacDive - the Bacterial Diversity Metadatabase Phyllobacteriaceae Bacteria described in 2004