Pathogen profile update: Fusarium oxysporum
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TLDR
More than 120 different formae speciales have been identified based on specificity to host species belonging to a wide range of plant families as mentioned in this paper, which can cause severe losses in many vegetables and flowers, field crops, such as cotton, and plantation crops such as banana, date palm and oil palm.Abstract:
Taxonomy: Kingdom Fungi; Phylum Ascomycota; Class Sordariomycetes; Order Hypocreales; Family Nectriaceae; genus Fusarium. Host range: Very broad at the species level. More than 120 different formae speciales have been identified based on specificity to host species belonging to a wide range of plant families. Disease symptoms: Initial symptoms of vascular wilt include vein clearing and leaf epinasty, followed by stunting, yellowing of the lower leaves, progressive wilting, defoliation and, finally, death of the plant. On fungal colonization, the vascular tissue turns brown, which is clearly visible in cross-sections of the stem. Some formae speciales are not primarily vascular pathogens, but cause foot and root rot or bulb rot. Economic importance: Can cause severe losses in many vegetables and flowers, field crops, such as cotton, and plantation crops, such as banana, date palm and oil palm. Control: Use of resistant varieties is the only practical measure for controlling the disease in the field. In glasshouses, soil sterilization can be performed. Useful websites: http://www.broad.mit.edu/annotation/genome/fusarium_group/MultiHome.html; http://www.fgsc.net/Fusarium/fushome.htm; http://www.phi-base.org/query.phpread more
Citations
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The Top 10 fungal pathogens in molecular plant pathology
Ralph A. Dean,Jan A. L. van Kan,Zacharias A. Pretorius,Kim E. Hammond-Kosack,Antonio Di Pietro,Pietro Spanu,Jason J. Rudd,Martin B. Dickman,Regine Kahmann,Jeff Ellis,Gary D. Foster +10 more
TL;DR: A short resumé of each fungus in the Top 10 list and its importance is presented, with the intent of initiating discussion and debate amongst the plant mycology community, as well as laying down a bench-mark.
Journal ArticleDOI
The Top 10 fungal pathogens in molecular plant pathology: Top 10 fungal pathogens
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Comparative Genomics Yields Insights into Niche Adaptation of Plant Vascular Wilt Pathogens
Steven J. Klosterman,Krishna V. Subbarao,Seogchan Kang,Paola Veronese,Scott E. Gold,Bart P. H. J. Thomma,Zehua Chen,Bernard Henrissat,Yong-Hwan Lee,Jongsun Park,María D. García-Pedrajas,Dez J. Barbara,Amy Anchieta,Ronnie de Jonge,Parthasarathy Santhanam,Karunakaran Maruthachalam,Zahi K. Atallah,Stefan G. Amyotte,Zahi Paz,Patrik Inderbitzin,Ryan J. Hayes,David I. Heiman,Sarah Young,Qiandong Zeng,Reinhard Engels,James E. Galagan,Christina A. Cuomo,Katherine F. Dobinson,Katherine F. Dobinson,Li-Jun Ma,Li-Jun Ma +30 more
TL;DR: Insight is revealed into the genetic mechanisms of niche adaptation of fungal wilt pathogens, advances the understanding of the evolution and development of their pathogenesis, and sheds light on potential avenues for the development of novel disease management strategies to combat destructive wilt diseases.
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The xylem as battleground for plant hosts and vascular wilt pathogens.
TL;DR: This review discusses the current knowledge on interactions of vascular wilt pathogens with their host plants, with emphasis on host defense responses against this group of pathogens.
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Fusarium Wilt of Banana
TL;DR: An overview of the Panama disease and its causal agent, Fusarium oxysporum f. cubense, is presented in this paper, with an emphasis on tropical race 4 (TR4), a 'Cavendish'-killing variant of the pathogen that has spread dramatically in the Eastern Hemisphere.
References
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Role of chitin synthase genes in Fusarium oxysporum.
TL;DR: The chitin synthase mutants constructed through targeted gene disruption by homologous recombination will be useful for elucidating cell wall biogenesis in F. oxysporum and the relationship between fungal cell wall integrity and pathogenicity.
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pH Response Transcription Factor PacC Controls Salt Stress Tolerance and Expression of the P-Type Na+-ATPase Ena1 in Fusarium oxysporum
TL;DR: A model in which PacC controls ion homeostasis in F. oxysporum at a high pH is proposed by activating expression of ena1 coordinately with a second Na+-responsive signaling pathway and was dependent on PacC function.
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The global nitrogen regulator, FNR1, regulates fungal nutrition-genes and fitness during Fusarium oxysporum pathogenesis
TL;DR: Cl cloning of the F. oxysporum global nitrogen regulator, Fnr1, indicates that FNR1 mediates adaptation to nitrogen-poor conditions in planta through the regulation of secondary nitrogen acquisition, and as such acts as a determinant for fungal fitness during infection.
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Fusarium oxysporum gas1 encodes a putative beta-1,3-glucanosyltransferase required for virulence on tomato plants
Zaira Caracuel,Ana Lilia Martínez-Rocha,Antonio Di Pietro,Marta P. Madrid,M. Isabel G. Roncero +4 more
TL;DR: The deltagas1 mutants showed dramatically reduced virulence on tomato, both in a root infection assay and in a fruit tissue-invasion model, thus providing the first evidence for an essential role of fungal beta-1,3-glucanosyltransferases during plant infection.
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REN1 Is Required for Development of Microconidia and Macroconidia, but Not of Chlamydospores, in the Plant Pathogenic Fungus Fusarium oxysporum
TL;DR: Rensa, a conidiation mutant of F. oxysporum obtained by restriction-enzyme-mediated integration mutagenesis, identified the affected gene, REN1, which encodes a protein with similarity to MedA of Aspergillus nidulans and Acr1 of Magnaporthe grisea, which strongly suggest that REN 1 encode a transcription regulator required for the correct differentiation of conidiogenesis cells for development of microconidia and
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