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Soil aggregate as a favorable habitat for Bradyrhizobium japonicum strains |
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| Authors: | Takashi Ozawa Seigo Shima Masurou Yamaguchi |
| Institution: | 1. Department of Agricultural Chemistry, College of Agriculture , University of Osaka Prefecture , Sakai , Osaka , 591 , Japan;2. Department of Agricultural Chemistry, College of Agriculture , University of Osaka Prefecture , Sakai , Osaka , 591 , Japan;3. Central Research Institute of Electric Power Industry , Abiko , Chiba , 270-11 , Japan;4. Shijounawate Gakuen Women's College , Shijounawate , zOsaka , Japan |
| Abstract: | Abstract Rhizobial cells are present in soils as saprophytes after the decay of host plant nodules, and must survive in the soil until the next encounter with the infection sites of the host plant root. Biotic and abiotic environmental factors affect the population size of these rhizobia in the soil (Vincent 1977). Precise estimation of the population size of the native and the introduced rhizobia in the soil is necessary to study the conditions for the successful nodule formation by introduced strains. |
| Keywords: | Bradyrhizobium japonicum microbial habitat soil aggregate survival |