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园艺学报 ›› 2024, Vol. 51 ›› Issue (6): 1403-1412.doi: 10.16420/j.issn.0513-353x.2023-0453

• 植物保护 • 上一篇    下一篇

蜡样芽孢杆菌挥发物对苹果轮纹病菌的拮抗活性

覃艮红1,2,*, 袁洪波1,3,*, 王卓妮1, 史冰柯1, 范洋洋1, 王丽1, 张猛2, 涂洪涛1,3, 徐超2,**(), 侯珲1,3,**()   

  1. 1 中国农业科学院郑州果树研究所,郑州 450009
    2 河南农业大学植物保护学院,郑州 450009
    3 中国农业科学院中原研究中心,河南新乡 453004
  • 收稿日期:2024-01-30 修回日期:2024-04-23 出版日期:2024-12-18 发布日期:2024-06-22
  • 通讯作者:
    ** E-mail:
  • 作者简介:

    * 共同第一作者

  • 基金资助:
    中央级公益性科研院所基本科研业务费专项(1610192023311); 中央级公益性科研院所基本科研业务费专项(ZGS202205); 中国农业科学院科技创新工程项目(CAAS-ASTIP-2016-RIP); 河南省重点研发与推广专项(232102110052)

Antagonistic Activity of Volatile Organic Compounds of Bacillus cereus Strain G3-17 Against Apple Ring Rot

QIN Genhong1,2, YUAN Hongbo1,3, WANG Zhuoni1, SHI Bingke1, FAN Yangyang1, WANG Li1, ZHANG Meng2, TU Hongtao1,3, XU Chao2,**(), HOU Hui1,3,**()   

  1. 1 Zhengzhou Fruit Research Institute,Chinese Academy of Agricultural Sciences,Zhengzhou 450009,China
    2 College of Plant Protection,Henan Agricultural University,Zhengzhou 450009,China
    3 Zhongyuan Research Center,Chinese Academy of Agricultural Sciences,Xinxiang,Henan 453004,China
  • Received:2024-01-30 Revised:2024-04-23 Published:2024-12-18 Online:2024-06-22

摘要:

为了探索苹果轮纹病生物防治方法,分析了蜡样芽孢杆菌菌株G3-17挥发性有机化合物对苹果轮纹病菌的拮抗活性。平皿对扣试验显示,在前期研究基础上菌株G3-17不同浓度的挥发物均能显著抑制苹果轮纹病菌的生长。顶空固相微萃取—气相色谱—质谱联用分析显示,菌株G3-17主要分泌6种挥发性有机化合物,其中苯甲醛对苹果轮纹病菌的抑制效果最好,在浓度为125 ~ 625 μL · L-1范围内抑制率为57.24% ~ 100.00%。苯甲醛处理还能破坏苹果轮纹病菌细胞膜的完整性,并能诱导苹果果实病程相关蛋白基因(MdPR1MdPR5)的表达。防效试验结果显示,苯甲醛处理能有效防治苹果轮纹病,在浓度为125、250和500 μL · L-1时的防效分别为39.80%、84.77%和90.67%。研究表明,蜡样芽孢杆菌菌株G3-17挥发物及主要成分苯甲醛对苹果轮纹病具有较好的防治潜力。

关键词: 芽孢杆菌, 苹果轮纹病, 挥发性有机化合物, 苯甲醛, 生物防治

Abstract:

The purpose of this study is to analyze the antagonistic activity of volatile organic compounds(VOCs)of Bacillus cereus strain G3-17 against Botryosphaeria dothidea,and to explore the biological control methods of apple ring rot. The plate-to-plate experiment showed that the volatiles of Bacillus cereus strain G3-17 at different concentrations could significantly inhibit the growth of Botryosphaeria dothidea. Headspace solid-phase microextraction-gas chromatography-mass spectrometry analysis showed that the strain G3-17 mainly secreted six VOCs. Among them,benzaldehyde had the best inhibitory effect on Botryosphaeria dothidea,with an inhibition rate of 57.24%-100.00% in the concentration range of 125-625 μL · L-1. Further results also showed that benzaldehyde treatment also destroyed the integrity of the cell membrane of Botryosphaeria dothidea. In addition,benzaldehyde treatment could induce the expression of apple fruit pathogenesis-related protein genes(MdPR1 and MdPR5). Benzaldehyde treatment also could effectively control apple ring rot caused by Botryosphaeria dothidea,and the control effects were 39.80%,84.77% and 90.67% at the concentrations of 125,250 and 500 μL · L-1,respectively. In summary,the volatiles of Bacillus cereus strain G3-17 and its main VOCs have good control potential against apple ring rot.

Key words: Bacillus cereus, apple ring rot, volatile organic compounds, benzaldehyde, biological control