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首页> 外文期刊>European Journal of Plant Pathology >Germination of Fusarium oxysporum in root exudates from tomato plants challenged with different Fusarium oxysporum strains
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Germination of Fusarium oxysporum in root exudates from tomato plants challenged with different Fusarium oxysporum strains

机译：尖孢镰刀菌在番茄植物根系分泌物中的萌发状况

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摘要

The response of microconidia from pathogenic and non-pathogenic Fusarium oxysporum to root exudates from tomato plants inoculated with different pathogenic and non-pathogenic F. oxysporum strains was studied. Root exudates from non-inoculated tomatoes highly stimulated the microconidial germination of the two tomato pathogens, F. oxysporum f.sp. lycopersici strain Fol 007 and F. oxysporum f.sp. radicis-lycopersici strain Forl 101587. In root exudates from tomato plants challenged with the pathogen Fol 007 the microconidial germination of Fol 007 was increased, whereas in root exudates from plants challenged with Forl 101587 the microconidial germination of Fol 007 was reduced. Root exudates of tomato plants challenged with the non-pathogenic unspecific F. oxysporum strain Fo 135 and the biocontrol strain Fo 47 clearly reduced microconidial germination of the pathogenic strain Forl 101587. Moreover, the microconidial germination rate of the biocontrol strain Fo 47 was increased in the presence of root exudates of tomato plants challenged with the tomato wilt pathogen Fol 007. These results indicate that pathogenic and non-pathogenic F. oxysporum strains alter the root exudation of tomato plants differently and consequently the fungal propagation of pathogenic and non-pathogenic F. oxysporum strains in the rhizosphere is affected differently.
机译：研究了致病性和非致病性的尖孢镰刀菌对分生孢子的微分生孢子对番茄植株根系分泌物的响应。来自未接种番茄的根分泌物高度刺激了两种番茄病原体F. oxysporum f.sp.的微孢子萌发。 lycopersici菌株Fol 007和F. oxysporum f.sp. Radicis-lycopersici菌株Forl101587。在用病原体Fol 007攻击的番茄植株的根系分泌物中，Fol 007的微孢子萌发增加，而在用Forl 101587攻击的植株的根系分泌物中，Fol 007的微孢子萌发减少。用非病原性非特异性尖孢镰刀菌Fo 135和生防菌株Fo 47攻击的番茄植株根系分泌液明显减少了致病菌株Forl 101587的微孢子萌发。此外，生防菌株Fo 47的微孢子萌发率增加了。番茄枯萎病原菌Fol 007攻击的番茄植株根系分泌物的存在。这些结果表明，致病性和非病原性尖孢镰刀菌菌株以不同的方式改变番茄植株的根系分泌物，因此致病性和非致病性F真菌的繁殖根际上的羟孢霉菌株受到不同的影响。

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  • 来源
    《European Journal of Plant Pathology》 |2008年第3期|395-401|共7页
  • 作者

    Siegrid Steinkellner; Roswitha Mammerler; Horst Vierheilig;

  • 作者单位

    Department of Applied Plant Sciences and Plant Biotechnology Institute of Plant Protection University of Natural Resources and Applied Life Sciences Peter-Jordan-Strasse 82 1190 Vienna Austria;

    Department of Applied Plant Sciences and Plant Biotechnology Institute of Plant Protection University of Natural Resources and Applied Life Sciences Peter-Jordan-Strasse 82 1190 Vienna Austria;

    Department of Applied Plant Sciences and Plant Biotechnology Institute of Plant Protection University of Natural Resources and Applied Life Sciences Peter-Jordan-Strasse 82 1190 Vienna Austria;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Microconidial germination; Fusarium wilt; Fusarium root rot; Plant–fungus interaction; Root exudates; Response;

    机译：微孢子萌发;枯萎病;枯萎病根;植物与真菌的相互作用;根系分泌物;响应;

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