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中国农学通报

中国农学通报 ›› 2010, Vol. 26 ›› Issue (10): 91-94.

• 食品 营养 检测 安全 • 上一篇    下一篇

壳聚糖对互隔交链孢（Alternaria alternata）菌的离体抑制作用

刁春英1,2,毕阳1,李永才1   

  • 收稿日期:2009-12-16 修回日期:2010-02-05 出版日期:2010-05-20 发布日期:2010-05-20
  • 基金资助:

    甘肃省农委项目

The inhibition of chitosan on Alternaria alternata in vitro

Diao Chunying1,2, Bi Yang1, Li Yongcai1   

  • Received:2009-12-16 Revised:2010-02-05 Online:2010-05-20 Published:2010-05-20

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摘要：

为了明确壳聚糖对互隔交链孢（Alternaria alternata）菌的抑制作用, 在离体条件下，研究了不同浓度壳聚糖对互隔交链孢孢子萌发、菌丝生长、菌丝形态的影响。结果表明：6.0mg/mL的壳聚糖可明显抑制Alternaria alternata孢子萌发，达79.54%；径向生长抑制率达85.89%。当壳聚糖浓度为3.0mg/mL时，菌丝开始变形，由原来的细长形变为念珠状，并有局部肿大现象。

关键词: 植物物候, 植物物候, 物候型, 聚类分析, 民勤

Abstract:

The inhibition of chitosan on Alternaria alternata in vitro was initially investigated. Results showed that 6.0mg/mL chitosan inhibited spore germination of A. alternata by 79.54%; inhibited the radial growth by 85.89%. Chitosan of different concentrations induced morphological changes of the hyphae, and when the concentration reached to 3.0mg/mL, the hyphal morphology began to change. And the hyphae changed from long and thin to bead-like, and also partly swelled.