Wilting Plant Disease
Mostrando 1-6 de 6 artigos, teses e dissertações.
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1. Reação de alface (Lactuca sativa L.) a Thielaviopsis basicola (Berk. &Broome) Ferraris / Lettuce (Lactuca sativa L.) reaction to Thielaviopsis basicola (Berk. &Broome) Ferraris
A alface é a principal hortaliça folhosa do Brasil. A podridão negra das raízes causada pelo fungo Thielaviopsis basicola vem limitando o cultivo da alface americana ´Lucy Brown`. Os objetivos desta pesquisa foram: determinar a reação das cultivares comerciais de alface à T. basicola; elucidar a herança da resistência de alface ao patógeno e selec
Publicado em: 2006
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2. Frequência de fungos associados ao colapso do meloeiro e influência da densidade de inóculo e isolados de Menosporascus cannonballus na severidade da doença
This study aimed to verify the frequency of fungi associated to melon (Cucumis melo L.) roots with collapse symptoms and their correlation with physical, chemical and microbiologic characteristics of soils. It also aimed to analyze the influence of inoculum densities and strains of Monosporascus cannonballus on the melon collapse, evaluating suitable methods
Publicado em: 2004
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3. VdNEP, an Elicitor from Verticillium dahliae, Induces Cotton Plant Wilting
Verticillium wilt is a vascular disease of cotton. The causal fungus, Verticillium dahliae, secretes elicitors in culture. We have generated ∼1,000 5′-terminal expressed sequence tags (ESTs) from a cultured mycelium of V. dahliae. A number of ESTs were found to encode proteins harboring putative signal peptides for secretion, and their cDNAs were isolate
American Society for Microbiology.
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4. Evidence for plasmid-encoded virulence factors in the phytopathogenic bacterium Clavibacter michiganensis subsp. michiganensis NCPPB382.
The tomato pathogen Clavibacter michiganensis subsp. michiganensis NCPPB382, which causes bacterial wilt, harbors two plasmids pCM1 (27.5 kb) and pCM2 (72 kb). After curing of the plasmids, bacterial derivatives were still proficient in the ability to colonize the host plant and in the production of exopolysaccharides but exhibited a reduced virulence. When
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5. Ralstonia solanacearum Needs Motility for Invasive Virulence on Tomato
Ralstonia solanacearum, a widely distributed and economically important plant pathogen, invades the roots of diverse plant hosts from the soil and aggressively colonizes the xylem vessels, causing a lethal wilting known as bacterial wilt disease. By examining bacteria from the xylem vessels of infected plants, we found that R. solanacearum is essentially non
American Society for Microbiology.
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6. Early Events in the Fusarium verticillioides-Maize Interaction Characterized by Using a Green Fluorescent Protein-Expressing Transgenic Isolate
The infection of maize by Fusarium verticillioides can result in highly variable disease symptoms ranging from asymptomatic plants to severe rotting and wilting. We produced F. verticillioides green fluorescent protein-expressing transgenic isolates and used them to characterize early events in the F. verticillioides-maize interaction that may affect later s
American Society for Microbiology.