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高原鼢鼠肠道菌群的组成、功能与川西高寒草地环境适应性的探讨

来源：花匠小妙招时间：2026-01-12 08:08

高原鼢鼠肠道菌群的组成、功能与川西高寒草地环境适应性的探讨

Discussion on the composition and function of the intestinal flora of Plateau zokor and their adaptability to the environment of the alpine grasslands in Western Sichuan

摘要为明确高原鼢鼠肠道菌群对川西高寒草地土壤环境的响应机制,本研究采用OTU聚类、物种分类学和dbRDA,对若尔盖和红原两地高原鼢鼠的肠道菌群组成进行全面分类和功能注释。结果表明:高原鼢鼠的g unclassified Coriobacteriaceae、g Saccharibacteria genera incertae sedis和g Lactobacillus的丰度占比较高;FAPROTAX菌群功能预测分析发现只存在Sulfate respiration。高原鼢鼠的肠道微生物中,Firmicutes占比最大,其次是Bacteroidetes;根据环境因子与肠道菌群的排序相关性可知土壤容重和土壤紧实度与高原鼢鼠肠道菌群显著相关(P<0.05),环境因子排序回归PCoA分析得出,环境因子中土壤容重(BD)和土壤紧实度(SC)显著影响高原鼢鼠肠道菌群(P=0.01)。高原鼢鼠的肠道菌群中,Firmicutes丰度大于Bacteroidetes。综上所述,高原鼢鼠肠道菌群丰度与土壤容重和紧实度密切相关。 In order to clarify the response mechanism of the intestinal flora of the plateau zokor to the plateau environment,this study used OTU clustering,species taxonomy and dbRDA to comprehensively classify and functionally annotate the intestinal flora composition of the plateau zokor in Ruoergai and Hongyuan.The results showed that:(1)The abundance of unclassified g unclassified Coriobacteriaceae,g Saccharibacteria genera incertae sedis and g Lactobacillus in plateau zokor was relatively high;(2)FAPROTAX flora function prediction analysis found that it only contained Sulfate respiration.Among the intestinal microorganisms of plateau zokor,Firmicutes accounted for the largest proportion,followed by Bacteroidetes;(3)According to the ordination correlation between environmental factors and intestinal flora,it can be seen that soil bulk density and soil compactness are significantly correlated with the intestinal flora of plateau zokor(P<0.05).PCoA analysis of environmental factor ordination regression shows that soil bulk density(BD)and soil compactness(SC)among environmental factors significantly affect the intestinal flora of plateau zokor(P=0.01).In the intestinal flora of plateau zokor,the abundance of Firmicutes is greater than that of Bacteroidetes.The abundance of intestinal flora of plateau zokor is closely related to the bulk density and compactness of soil.

作者拉毛草王钰何志强王康根呷羊批牛培莉王婉刘海金周俗 LAmaocao;WANG Yu;HE Zhiqiang;WANG Kang;GENGA Yangpi;NIU Peili;WANG Wan;LIU Haijin;ZHOU Su(Sichuan Academy of Forestry Sciences,Chengdu 610081,Sichuan,China;Ganzi Prefecture Animal Disease Prevention and Control Center,Sichuan Province,Kangding 626000,Sichuan,China;A'ba Grassland Workstation,Maerkang 624000,Sichuan,China;Adiministration of Zoige Wetland National Nature Reserve,Ruoergai 624500,Sichuan,China;Forestry and Grassland Administration of Ruoergai county,Nuoergai 624500,Sichuan,China)

出处《草学》 2025年第2期62-69,共8页 Journal of Grassland and Forage Science

基金四川省重点研发项目(2023YFN0028) 川西北草原鼠害监测与防控技术推广示范(2024年中央财政林草科技推广示范项目) 四川省(阿坝县、甘孜县)草原鼠害综合防控示范区建设国家现代农业产业技术体系四川饲草创新团队专项建设资金(sccxtd-2025-16)。

关键词高原鼢鼠肠道菌群功能预测环境适应性 Plateau zokor(Eospalax baileyi) intestinal flora function prediction environmental adaptability

作者简介拉毛草(1993-),女(藏族),甘肃合作人,硕士研究生,主要从事草地保护研究。Lamc_gsau@163.com;通信作者:周俗(1967-),男,四川彭州人,研究员,主要从事植物保护与草原生态保护研究。zhousu666@163.com。