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中国农学通报

中国农学通报 ›› 2012, Vol. 28 ›› Issue (6): 39-42.

所属专题： 玉米

• 农学 农业基础科学 • 上一篇    下一篇

串珠镰刀菌粗毒素对玉米幼苗的胁迫作用研究

田雪亮 薛国正 郎剑锋 陆宁海 刘鸣韬 陈锡岭   

  • 收稿日期:2011-10-09 修回日期:2011-11-24 出版日期:2012-02-25 发布日期:2012-02-25
  • 基金资助:

    国家青年自然科学基金项目;河南科技学院重点科研项目

Effect of Crude Toxin of Fusarium moniliforme Stress on Maize Seedling

  • Received:2011-10-09 Revised:2011-11-24 Online:2012-02-25 Published:2012-02-25

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摘要：

为了明确串珠镰刀菌毒素对玉米的影响，利用不同浓度的串珠镰刀菌粗毒素对玉米种子和幼苗进行培养处理。结果表明：毒素浓度越高对玉米种子的萌发抑制率、胚芽抑制率、胚根抑制率越高，且对玉米幼苗的毒害作用越强，造成幼苗的萎蔫程度愈强。不同品种玉米种子和幼苗对毒素的敏感性不同。玉米幼苗根系的电导率随毒素处理时间延长呈上升趋势，其中对毒素耐受能力较强的品种为‘鲁单981’。串珠镰刀菌毒素对玉米种子萌发起抑制作用，这为利用串珠镰刀菌毒素快速筛选抗病品种奠定了基础。

关键词: 措施, 措施

Abstract:

In order to reveal the effect of crude toxin of Fusarium moniliforme on maize, maize seed and seedling were treated by toxin with different concentration. The results showed that, along with higher concentration toxin, the ratio of inhibiting germination, the ratio of inhibiting embryo growth and the ratio of inhibiting radical were higher. Meanwhile, the hurt to maize seedling by toxin with higher concentration were severe, also the extent of seedling wilt were corresponding higher. The sensitivity of different maize seedling to toxin was diversity. The electronic conductivity of maize seedling was higher following with the time of treatment by toxin. In the seedling groups, the breed of ‘Ludan 981’ had stronger tolerance to toxin. The toxin could inhibit the germination of maize seed. This study would establish a basis for quick selection for resistant breed by toxic.