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中国农学通报 ›› 2015, Vol. 31 ›› Issue (34): 193-196.doi: 10.11924/j.issn.1000-6850.casb15070122

• 植物保护 农药 • 上一篇    下一篇

琯溪蜜柚黑斑病拮抗细菌分离及鉴定

郑域茹,林秀香,武 英,王美盛,林晓兰,罗金水   

  1. (福建省热带作物科学研究所, 福建漳州 363001)
  • 收稿日期:2015-07-21 修回日期:2015-11-17 接受日期:2015-09-18 出版日期:2015-12-17 发布日期:2015-12-17
  • 通讯作者: 罗金水
  • 基金资助:
    漳州市自然基金“琯溪蜜柚黑斑病生防细菌及其生防机制初步研究”(ZZ2014J10);福建省公益类科研院所基本科研专项“琯溪蜜柚黑斑病生防潜力菌的初步研究”(2014R1028-4)。

Screening and Identification of Antagonistic Bacteria Against Citrus Black Spot

Zheng Yuru, Lin Xiuxiang, Wu Ying, Wang Meisheng, Lin Xiaolan, Luo Jinshui   

  1. (Fujian Institute of Tropical Crops, Zhangzhou Fujian 363001)
  • Received:2015-07-21 Revised:2015-11-17 Accepted:2015-09-18 Online:2015-12-17 Published:2015-12-17

摘要: 为获得琯溪蜜柚黑斑病菌Phyllosticta citriasiana的拮抗微生物,从平和琯溪蜜柚园采集土样19份,经室内分离、纯化及筛选,获得了对琯溪蜜柚黑斑病菌具有拮抗作用的18株细菌,其中拮抗作用最强的为菌株BC12,其对黑斑病菌的抑菌率为55.84%。对疮痂病菌Sphaceloma fawcetti、炭疽病菌Colletotrichum gleosporioides、黄斑病菌Mycosphaerella cirri这3种琯溪蜜柚果园常见的病原菌均有不同程度的拮抗作用,表现出一定的抗菌活性。菌落形态观察、生理生化特性测定以及16S rDNA序列分析的结果表明,BC12为短小芽孢杆菌Bacillus pumilus。

关键词: 有机型叶面肥, 有机型叶面肥, ‘红地球’ 葡萄, 灰色关联度, 产量, 品质, 经济效益

Abstract: Through plate-method, 18 antagonistic bacteria strains against Phyllosticta citriasiana were isolated from 19 samples collected from the orchard of Guanxi honey pomelo in Pinghe, Zhangzhou, Fujian Province. Results showed that strain BC12 had the highest antagonistic activity with the inhibition rate of 55.84%. The strain BC12 exhibited extensive antagonistic effect on 3 other honey pomelo pathogens, Sphaceloma fawcetti, Colletotrichum gleosporioides and Mycosphaerella cirri. Based on 16S rDNA sequence homology, physiological and biochemical characteristics and morphological observation, the strain was identified as Bacillus pumilus.

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