基于高通量测序天麻土壤细菌群落结构分析

Soil Bacterial Community Structure Analysis of Gastrodia elata Based on High Throughput Sequencing

  • 摘要: 采集昭通彝良荞山镇不同年份种植天麻的土壤样品,记录采集样本名称和样品编号;选取其中3组,通过高通量测序技术,分析天麻种植土壤原壤、一麻壤和方竹壤的细菌群落结构变化及不同土壤中细菌物种丰度的差异。结果表明:原壤中特有细菌OTU > 方竹壤 > 一麻壤;种植并收获一茬箭麻后,与原壤相比一麻壤中特有细菌明显减少,优势细菌丰度降低;种植方竹修复后,方竹壤中特有细菌数量恢复。说明通过种植当地经济作物方竹能修复天麻土壤细菌群落结构。

     

    Abstract: Soil samples of Gastrodia elata planted in different years were collected from Qiaoshan Town, Yiliang County, Zhaotong, Yunnan Province. The sample names and numbers were recorded in the book. Three groups were selected to analyze the bacteria changes in community structure and differences in species abundance among the original soil, a crop soil of G. elata planting soil and bamboo soil by high throughput sequencing technology. The results showed that the endemic bacteria OTU in the original soil was higher than bamboo soil and a crop soil; compared with the original soil, the endemic bacteria and the abundance of dominant bacteria decreased significantly after planting and harvesting; the number of endemic bacteria in the soil was restored based on the restoration experiment of bamboo planting, which indicated that the bacterial community structure in the soil of G. elata may be restored by rotation of local commercial crop bamboo.

     

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