食品科学 ›› 2017, Vol. 38 ›› Issue (22): 74-79.doi: 10.7506/spkx1002-6630-201722012

• 生物工程 • 上一篇    下一篇

5 株樱桃果实采后病原真菌分离及rDNA ITS区序列分析

姚婷,黄津津,任向峰,张燕,何欣萌,王友升   

  1. (北京食品营养与人类健康高精尖创新中心,食品质量与安全北京实验室,北京工商大学,北京 100048)
  • 出版日期:2017-11-25 发布日期:2017-11-03
  • 基金资助:
    “十二五”国家科技支撑计划项目(2015BAD16B06);国家自然科学基金面上项目(31471626)

Morphological Characterization and rDNA ITS Sequence Analysis of Five Pathogenic Fungi Isolated from Cherry Fruits

YAO Ting, HUANG Jinjin, REN Xiangfeng, ZHANG Yan, HE Xinmeng, WANG Yousheng   

  1. (Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Laboratory for Food Quality and Safety, Beijing Technology & Business University (BTBU), Beijing 100048, China)
  • Online:2017-11-25 Published:2017-11-03

摘要: 从采后贮藏过程中自然发病的“拉宾斯”、“红灯”樱桃果实中分离到5 株丝状病原真菌319#、323#、367#、369#和370#。对分离得到的菌株纯化、回接、再分离纯化,并观察菌落形态和个体形态。提取5 株病原真菌DNA,PCR扩增rDNA ITS区序列后测序,分析测序结果并构建进化树。综合形态学特征和rDNA ITS区序列鉴定分析结果,得到菌株319#为匍枝根霉(Rhizopus stolonifer)、菌株323#为苹果果腐病菌(Diaporthe perniciosa)、菌株367#为黑附球菌(Epicoccum nigrum)、菌株369#为核果褐腐病菌(Monilinia laxa)和菌株370#为圆孤青霉菌(Penicillium cyclopium),其中D. perniciosa、E. nigrum和P. cyclopium为在樱桃果实上首次分离到的病原真菌。

关键词: 樱桃, 病原真菌, 形态学观察, rDNA ITS区序列分析

Abstract: Five fungal strains isolated from naturally infected cherry fruit were purified, re-inoculated and identified as pathogens of cherry fruits. The results of morphological characterization and ribosomal DNA internal transcribed spacer (rDNA-ITS) analysis showed that strain 319#, 323#, 367#, 369# and 370# were identified as Rhizopus stolonifer, Diaporthe perniciosa, Epicoccum nigrum, Monilinia laxa and Penicillium cyclopium, respectively. In this study, D. perniciosa, E. nigrum and P. cyclopium were isolated from cherry fruits for the first time.

Key words: cherry fruit, pathogenic fungi, morphological characterization, rDNA ITS sequence analysis

中图分类号: