Diversity of rhizosphere bacteria associated with different soybean cultivars in two soil conditions |
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| Authors: | Hao Wang Yan Jiang Shuang Jin Zhao Wen Xin Chen |
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| Institution: | 1. Key Laboratory of Soybean Biology in Chinese Ministry of Education, Northeast Agricultural University, Harbin 150028, China;2. The National Research Center of Soybean Engineering and Technology, Northeast Agricultural University, Harbin 150028, China;3. The National Research Center of Soybean Engineering and Technology, Northeast Agricultural University, Harbin 150028, China;4. Institute of Food and Oil Crops, Hebei Academy of Agricultural and Forestry Sciences, Shijiazhuang 050031, China;5. University State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing 100193, China |
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| Abstract: | Aiming at learning the effects of soil conditions and cultivar on the bacterial diversity in the rhizosphere of soybean (Glycine max(L.) Merr.), bacterial communities associated with four soybean cultivars grown in two soils were revealed by terminal-restriction fragment length polymorphism (T-RFLP) combined with sequencing analysis of a 16S rDNA clone library. Lower bacteria diversity was found in soil A which has higher salinity and nutrient contents, while the highest bacterial diversity was found in the rhizosphere of cv. Jidou 12 in both soils. These results revealed that both the soil conditions and soybean cultivar affected the community composition of rhizosphere bacteria, but the effect of soil conditions was greater than that of soybean cultivar as demonstrated by the principal component analysis. It also revealed that the abundant rhizosphere bacteria may also the main symbiotic or non-symbiotic nodule endophytes. |
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| Keywords: | bacteria diversity rhizosphere soybean cultivar |
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