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| Effects of Streptomyces 702 on Seed Germination and Seedling Growth of Rice and Soil Microbes |
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| KeyWord:Streptomyces 702; seed germination; seedling growth; microbial community |
| Author Name | Affiliation | | WEI Sai-jin | Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education/Key Laboratory of Crop Physiology, Ecology and Genetic Breeding of Jiangxi Province, JAU, Nanchang 330045
Department of Bioengineering, JAU, Nanchang 330045 | | WANG Shi-qiang | Department of Bioengineering, JAU, Nanchang 330045 | | LI Kun-tai | Department of Bioengineering, JAU, Nanchang 330045 | | TU Guo-quan | Department of Bioengineering, JAU, Nanchang 330045 | | PAN Xiao-hua | Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education/Key Laboratory of Crop Physiology, Ecology and Genetic Breeding of Jiangxi Province, JAU, Nanchang 330045 |
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| Abstract: |
| Soil microbes and their metabolites may influence crop growth. A pot experiment was conducted to investigate the effects of Streptomyces 702 and its metabolites（Ag-antibiotic 702） on seed germination and seedling growth of rice（Spring No.1） and soil microbial flora. Seed germination and radicle and bud growth were improved under low concentrations of Ag-antibiotic 702. With increasing Ag-antibiotic 702 concentrations, amylase activity and protein contents increased at first and then decreased. In addition, root vigor was enhanced, while sugar contents were reduced by the Ag-antibiotic 702. Additions of Streptomyces 702 agent tended to decrease soil bacteria, mold, nitrobacteria and nitrifying bacteria, but significantly increased actinomycetes and aerobic cellulose decomposing bacteria. |
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