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针对我国主要豆科作物大豆和花生的研究成果，并结合本身研究工作内容，（1）总结了与宿主共生的根瘤菌生物学多样性，包括大、小样本的土著根瘤菌群体数量、分离频率、类型与分布及其菌株-宿主共生混交性与亲和性；（2）评述了根瘤菌-宿主植物共生体双边固氮改良，包括优良菌株的选育、宿主品种资源共生特性的评价与利用及特异性状的选择；（3）讨论了我国这一类共生体资源的丰富性以及有必要进一步加大力度研究有益资源的开发和利用的问题。
According to the research results of soybean and peanut, the main leguminous crops in our country, combined with their own research work content, (1) summarized the biological diversity of rhizobia symbiotic with the host, including the number of indigenous rhizobia population, the frequency of separation , Type and distribution, and the strain-host symbiosis and compatibility. (2) The rhizobium-host plant symbiont nitrogen fixation was reviewed, including the selection of excellent strains, the evaluation and utilization of the symbiotic characteristics of the host varieties and The selection of specific traits; (3) The richness of this kind of symbiont resources in China and the need to further strengthen the research on the development and utilization of beneficial resources.