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                 Guihaia  Mar. 2020ꎬ 40(3): 311-319

   DOI: 10.11931/ guihaia.gxzw201810032
   李蜜ꎬ 高程海ꎬ 姜舒ꎬ 等. 海南西海岸真红树内生细菌多样性及其延缓衰老活性研究 [J]. 广西植物ꎬ 2020ꎬ 40(3): 311-319.
   LI Mꎬ GAO CHꎬ JIANG Sꎬ et al. Diversity and anti ̄aging activity of endophytic bacteria from true mangrove plants collected from the west
   coast of Hainan [J]. Guihaiaꎬ 2020ꎬ 40(3): 311-319.


   海南西海岸真红树内生细菌多样性及其延缓衰老活性研究


              李  蜜ꎬ 高程海ꎬ 姜  舒ꎬ 韦  娟ꎬ 刘思萍ꎬ 戴恩枝ꎬ 易湘茜                                     ∗


                  ( 广西中医药大学 海洋药物研究院/ 药学院/ 广西中药药效研究重点实验室ꎬ 南宁 530200 )
       摘  要: 该文设计 9 种分离培养基ꎬ采用稀释涂布法从 14 份真红树植物的 46 份组织样品中分离纯化内生细
       菌ꎮ 并基于菌株形态学特征和 16S rRNA 基因序列确定分离菌株的种属及分析其物种多样性ꎬ采用秀丽隐杆
       线虫模型筛选菌株延缓衰老活性ꎮ 结果表明:(1)通过基因序列去重复后从 46 份真红树植物组织样品中获得
       32 株海洋细菌ꎬ基于菌株 16S rRNA 基因序列信息分析ꎬ覆盖 12 科 17 属ꎬ其中芽孢杆菌属(Bacillus)为优势菌
       属ꎬ并获得 1 株疑似橙单胞菌属(Aurantimonas)新种ꎬ16S rRNA 基因序列相似性低于 97%ꎻ(2)经过秀丽隐杆
       线虫粗筛发现 3 株海洋细菌具有显著延缓线虫衰老的活性(P<0.05)ꎮ 以上结果表明海南西海岸真红树内生

       细菌具有物种多样性ꎬ部分菌株具有延缓线虫衰老活性ꎮ
       关键词: 真红树植物ꎬ 内生细菌ꎬ 物种多样性ꎬ 延缓衰老活性
       中图分类号: Q939.1    文献标识码: A
       文章编号: 1000 ̄3142(2020)03 ̄0311 ̄09                  开放科学(资源服务)标识码(OSID):




      Diversity and anti ̄aging activity of endophytic bacteria

                     from true mangrove plants collected
                          from the west coast of Hainan


                                                                                                ∗
     LI Miꎬ GAO Chenghaiꎬ JIANG Shuꎬ WEI Juanꎬ LIU Sipingꎬ DAI Enzhiꎬ YI Xiangxi
                 ( Institutes of Marine Drugs/ Faculty of Pharmacy/ Guangxi Key Laboratory of Efficacy Study on Chinese
                       Materia Medicaꎬ Guangxi University of Chinese Medicineꎬ Nanning 530200ꎬ China )

       Abstract: The bacteria were isolated and purified from 46 tissues of 14 true mangrove plants used nine kinds of isolation
       media by dilution coating method. The bacteria were isolated from strainsꎬ and the species and genus diversities were
       analyzed by bacteria morphological characteristics and 16S rRNA gene sequences. The anti ̄aging activities of the bacteria
       were tested by Caenorhabditis elegans screening models. The results were as follows: (1) The 32 marine bacteria were


    收稿日期: 2019-03-15
    基金项目: 国家自然科学基金(41566004)ꎻ广西中医药大学岐黄工程高层次人才团队培育项目(2018006)ꎻ广西中医药大学 2017 年
    引进博士科研启动基金(2017BS039)ꎻ广西中药药效研究重点实验室资助项目(17 ̄259 ̄20) [Supported by the National Natural Science
    Foundation of China (41566004)ꎻ Development Program of High ̄Level Talent Team under Qihuang Project of Guangxi University of Chinese
    Medicine (2018006)ꎻ Research Launching Fund for Introduced Doctors from Guangxi University of Chinese Medicine in 2017 (2017BS039)ꎻ
    Guangxi Key Laboratory of Efficacy Study on Chinese Materia Medica (17 ̄259 ̄20)]ꎮ
    作者简介: 李蜜(1995-)ꎬ女(壮)ꎬ广西柳州人ꎬ硕士研究生ꎬ主要从事海洋中药物质基础与产品开发研究ꎬ(E ̄mail)18878552446@
    163.comꎮ
   ∗
    通信作者: 易湘茜ꎬ博士ꎬ教授ꎬ硕士研究生导师ꎬ主要从事海洋生物资源应用研究ꎬ(E ̄mail)42672960@ qq.comꎮ
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