药用植物苍术内生菌的研究进展及展望

Research progress and prospect of endophytes from medicinal plant Atractylodes lancea

药用植物内生菌对宿主的生长发育和品质形成具有重要的促进作用。因此,该文对药用植物苍术内生菌的相关研究进行了综述。根据前人的研究结果发现,苍术具有丰富多样的内生真菌、细菌和放线菌资源,其中的有益菌对苍术的生长发育具有积极的促进作用。苍术的挥发油与内生菌之间存在紧密的相互作用关系,不同内生菌对苍术挥发油的组成和含量具有不同的调节作用,可能在苍术的品质形成过程中发挥重要作用。然而,通过传统培养分离方法获得的苍术内生菌群信息不足以反映苍术内生菌的真实情况,而且有关不同化学型及不同产地的苍术内生菌群研究较少,不利于苍术与内生菌之间生态学关系的研究,限制了苍术内生菌资源的有效开发和利用。因此,该文对未来苍术内生菌的研究方向提出可行性建议:(1)利用高通量测序技术与传统培养分离相结合的方法挖掘苍术核心内生菌资源;(2)探究苍术内生菌多样性与化学型之间的关系;(3)加强内生菌在苍术栽培中的应用,为提高苍术的栽培效率和品质提供科学指导。

The endophytes of medicinal plants play an important role in promoting the quality formation of the host. Therefore, this paper made a review of endophytes of medicinal plant Atractylodes lancea. According to previous studies, A. lancea boasts endophytes, such as fungi, bacteria, and actinomycetes, among which the beneficial microorganisms help the growth and development of A. lancea. There is a close interaction between the volatile oil of A. lancea and endophytes. Different endophytes vary in regulating the composition and content of the volatile oil of A. lancea, which might contribute to the quality formation of A. lancea. However, the information of the endophytic flora of A. lancea obtained by traditional culture and isolation is not enough to reflect the real situation of the endophytes of A. lancea. Little is known about the endophytes of A. lancea from different chemical types and different habitats, which is not conducive to the study of the ecological relationship between A. lancea and endophytes and limits the development and utilization of the endophytes. Therefore, at the end of this paper, the authors put forward suggestions for future research on endophytes in A. lancea, including:(1)mining the core endophyte resources of A. lancea by combining high-throughput sequencing with traditional culture and isolation;(2)exploring the relationship between the diversity of endophytes and chemical types of A. lancea;(3)strengthening the application of endophytes in A. lancea cultivation, in order to facilitate the cultivation efficiency and quality of A. lancea.