Airborne inoculum of Fusarium oxysporum f. sp. cucumerinum

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• 作者：K. Scarlett (1)
  L. Tesoriero (2)
  R. Daniel (2)
  D. Maffi (3)
  F. Faoro (3)
  D. I. Guest (1)
  
  1. Faculty of Agriculture and Environment ; The University of Sydney ; Biomedical Building C81 ; Eveleigh ; NSW ; Australia ; 2015
  2. NSW Department of Primary Industries ; Elizabeth Macarthur Agricultural Institute ; Woodbridge Road ; Menangle ; NSW ; Australia ; 2568
  3. Department of Agricultural and Environmental Sciences ; Milan State University ; Milan ; Italy
  
• 关键词：Epidemiology ; Disease cycle ; Fusarium wilt ; Aerial conidia
• 刊名：European Journal of Plant Pathology
• 出版年：2015
• 出版时间：April 2015
• 年：2015
• 卷：141
• 期：4
• 页码：779-787
• 全文大小：1,217 KB
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  5. Cerkauskas, RF, Brown, J, Ferguson, G (2001) First report of fusarium stem and root rot of greenhouse cucumber cause by Fusarium oxysporum f. sp. radicis cucumerinum in Ontario. Plant Disease 85: pp. 1028 CrossRef
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  16. Pavlou, GC, Vakalounakis, DJ, Ligoxigakis, EK (2002) Control of root and stem rot of cucumber, caused by Fusarium oxysporum f. sp. radicis-cucumerinum, by grafting onto resistant rootstocks. Plant Disease 86: pp. 379-382 CrossRef
  17. Postma, J, Willemsen-de Klein, M, Elsas, J (2000) Effect of indigenous microflora on the development of root and crown rot caused by Pythium aphanidermatum in cucumber grown in rockwool. Phytopathology 90: pp. 125-133 CrossRef
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  19. Rekah, Y, Shtienberg, D, Katan, J (2000) Disease development following infection of tomato and basil foliage by airborne conidia of the soilborne pathogens Fusarium oxysporum f. sp. radicis-lycopersici and F. oxysporum f. sp. basilici. Phytopathology 90: pp. 1322-1329 CrossRef
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  22. Scarlett, K., Tesoriero, L., Daniel, R., & Guest, D. (2013a). Detection and quantification of / Fusarium oxysporum f. sp. / cucumerinum in environmental samples using a specific quantitative PCR assay. / European Journal of Plant Pathology, 137, 315鈥?24.
  23. Scarlett, K., Tesoriero, L., Daniel, R., & Guest, D. (2013b). Sciarid and shore flies as aerial vectors of / Fusarium oxysporum f. sp. / cucumerinum in greenhouse cucumbers. / Journal of Applied Entomology. doi:10.1111/jen.12098 .
  24. Tesoriero, L (2011) Fusarium oxysporum and Pythium associated with vascular wilt stem and root rot of Australian greenhouse cucumbers. PhD Thesis. The University of Sydney, Australia
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• 刊物类别：Biomedical and Life Sciences
• 刊物主题：Life Sciences
  Plant Pathology
  Plant Sciences
  Ecology
  
• 出版者：Springer Netherlands
• ISSN：1573-8469

文摘

Fusarium oxysporum f. sp. cucumerinum is the fungal pathogen responsible for Fusarium vascular wilt of cucumber. In Australia, disease management in soilless greenhouse cucumbers is limited by the understanding of the disease cycle, in particular the risk associated with infection of pruning wounds by airborne propagules. Aerial dissemination of the pathogen in response to temperature and relative humidity was investigated using a specific and sensitive quantitative real-time PCR assay. Both macroconidia and microconidia were identified as airborne propagules and a potential relationship between fluctuation in relative humidity and spore release was found, however, it appears that crop disturbance may also influence conidia liberation. Experimental inoculation of stem wounds with conidia however, failed to establish infections. These results suggest that aerial inoculum propagates and disseminates the pathogen, however airborne spores are deposited on the substrate surface and infection occurs primarily through the root. We conclude that while airborne conidia are a risk to infection of cucumber plants in soilless greenhouse crops, resistant rootstocks are likely to provide good protection against this pathogen.