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草业学报 ›› 2014, Vol. 23 ›› Issue (5): 365-369.DOI: 10.11686/cyxb20140544

• 论文 • 上一篇    

放线菌D01对马铃薯4种病原真菌的抑菌作用

陈淑琴,王生荣*   

  1. 甘肃农业大学草业学院,甘肃 兰州 730070
  • 收稿日期:2013-09-26 出版日期:2014-10-20 发布日期:2014-10-20
  • 通讯作者: Email:wangsr@gsau.edu.cn
  • 作者简介:陈淑琴(1988-),女,甘肃白银人,在读硕士。E-mail:csq8899chenxi@163.com
  • 基金资助:

    甘肃省科技厅重大科技专项(1102NKDM025)和科技部项目(2012BAD06B03)资助

Antagonistic effect of actinomycetes D01 against four strains potato pathogens

CHEN Shu-qin,WANG Sheng-rong   

  1. College of Prataculture, Gansu Agricultural University, Lanzhou 730070, China
  • Received:2013-09-26 Online:2014-10-20 Published:2014-10-20

摘要:

采用PDA平板对峙法、生长速率法等方法,研究了放线菌D01对马铃薯干腐病菌、马铃薯黑痣病菌、马铃薯炭疽病菌和马铃薯早疫病菌4种病原真菌的抑菌活性。结果表明,放线菌D01对4种病原真菌均表现出显著的抑菌活性,发酵液抑菌率均在70%以上;经放线菌处理后,病原真菌的基内菌丝不同程度的发生了畸变;放线菌D01对供试靶标真菌均有显著的拮抗作用,其中对马铃薯干腐病菌和马铃薯黑痣病菌的持续抑菌作用最强。

Abstract:

Fungistatic activity of actinomycetes strain D01 on Fusarium spp., Rhizoctonia solani, Colletotrichum coccodes and Alternaria solani was studied by confronting incubation on PDA plates, and assessing the fungi growth rates. An inhibition ratio of more than 70% to four potato fungal pathogens was gained by D01. Substrate mycelium of target pathogens suppressed with antagonistic actinomycetes had been deformed or lysed. Actinomycetes D01 showed persistent inhibition effects on the target pathogens in different degrees, especially on C. coccodes and R. solani.

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