天津农学院学报 ›› 2015, Vol. 22 ›› Issue (4): 1-5.

• 研究与简报 •    下一篇

新疆野苹果(Malus sieversii)内生菌的分离与鉴定

李芳, 邹妍, 刘彬, 张云秀, 龙鸿, 阎国荣*   

  1. 天津农学院 园艺园林学院,天津 300384
  • 收稿日期:2015-05-21 发布日期:2015-12-31
  • 通讯作者: 新疆维吾尔自治区财政林业科技专项项目“新疆野苹果种质资源收集与评价”(无编号)
  • 作者简介:李芳(1990-),女,湖南邵阳人,硕士在读,主要从事新疆野苹果种质资源利用与保护研究。E-mail:646288198@qq.com。
  • 基金资助:
    阎国荣(1957-),男,甘肃敦煌人,教授,博士,主要从事果树种质资源与生理生态方向研究。E-mail:yanguorong@eyou.com。

Isolation and Identification of Endophytic Fungi in Malus sieversii

LI Fang, ZOU Yan, LIU Bin, ZHANG Yun-xiu, LONG Hong, YAN Guo-rong*   

  1. College of Horticulture and Landscape, Tianjin Agricultural University, Tianjin 300384, China
  • Received:2015-05-21 Published:2015-12-31

摘要: 采用组织分离法从新疆野苹果茎中分离纯化了内生菌纯菌株,用分子生物学方法对内生菌进行了种属鉴定,扩增了真菌ITS序列,并进行了比较分析。结果显示,从新疆野苹果中分离得到了11株内生菌,分属于2个属3个种,分别为链格孢属(Alternaria sp.)和镰刀菌属(Fusarium sp.),新疆野苹果与枣树、棕榈树和甘蔗等有相同种类的内生菌,结合MS培养基启动培养、PDA法分离可快速得到纯菌株,比PDA多次纯化分离法更简便高效。本文可为抑制新疆野苹果组织培养时产生的内生菌的生长提供参考。

关键词: 新疆野苹果, 内生菌, 组织分离法, ITS

Abstract: The endophytic fungi was isolated from M. sieversii stem using tissue separation method to obtain pure strains endophytes, the endophytic fungi species was identified using the molecular biology method, and the fungi ITS sequence was amplified and the comparation and analyses were made. The results show that 11 strains of endogenous fungi were identified from M. sieversii, which belonged to 3 species of endophytes in two genera(Alternaria sp. and Fusarium sp.), and there are same kind of endophytes among jujube, palm trees, M. sieversii and sugar cane. Pure strains can be obtained in short time initiated with MS medium and separated by PDA method. This method is simpler and more effective compared with multiple purified isolation method of PDA. These can provide experimental data for inhibiting the growth of endophytes generated from M. sieversii by the tissue culture.

Key words: Malus sieversii, endophytic fungi, tissue separation method, ITS

中图分类号: