【摘要】 【目的】旨在获得与抗盐有关的水稻根系细菌群落,以期为盐碱水域综合种养技术开发提供支持。【方法】采用高通量测序方法,研究了不同盐浓度胁迫下的水培水稻根系微生物群落结构的变化。【结果】不同盐浓度胁迫下,水稻根系细菌群落群落丰度及多样性随着盐浓度呈现出先高后低的态势,3‰浓度胁迫下最高,5‰浓度胁迫下最低。【结论】Rhodobacteraceae科、Phyllobacteriaceae科、Gemmobacter属、Aquisphaera属细菌种类与盐浓度具有显著正相关性(P<0.05)。因此,这些科属所属菌种在今后盐碱水渔业发展"鱼-植物"综合种养具有潜在利用价值。更多还原

【Abstract】 【Objective】Plant root-associated microbiomes can enhance plant tolerance by biotic and abiotic stresses. The present paper aims to obtain anti-salt bacterial community in rice roots and applied to production. 【Method】Hydroponic-rice root-associated bacterial community structure and diversity in different saltconcentration stress were studied by High-throughput sequencing. 【Result】Under different saltconcentration stresses, rice root-associated bacterial community structure and diversity with the increase of salt concentration, it showed a trend of getting high first and then low, the highest under 3 ‰ concentration stress and the lowest under 5 ‰ concentration stress.【Conclusion】The microorganisms were Rhodobacteraceae,Phyllobacteriaceae, Gemmobacter and Aquisphaera which were significantly positive correlated with salt concentration(P<0.05), therefore, these familyand genus belonged to the bacterial species that could be used as candidate strains for improving salt tolerance in the development of the‘fish-plant’integrated breeding model in saline-alkaline water fisheries.更多还原