Resultados de búsqueda - Koch’s Postulates

Advances in the etiology of sweet potato (Ipomoea batatas (L.) Lam) yellow curling disease in Argentina por Flamarique, Sofía Solange, Vilanova Perez, Antonella, Luque, Andres Vicente, Rodriguez Pardina, Patricia, Di Feo, Liliana Del Valle

Materias: “…Koch’s Postulates…”
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Postharvest Fruit rot of Persimmon (Diospyros kaki) in Spain Caused by Lasiodiplodia theobromae and Neofusicoccum spp. por Palou, Lluís, Montesinos-Herrero, Clara, Besada, Cristina, Taberner, Verònica

“…Pathogenicity of all three isolates was demonstrated by fulfilling Koch's postulates.…”
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Viroids as Companions of a Professional Career por Durán-Vila, Núria

“…Further biological assays are also essential to establish the relationship of a viroid with plant disease and to fulfill Koch's postulates.…”
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Incidence and etiology of postharvest diseases of fresh fruit of date palm (Phoenix dactylifera L.) in the grove of Elx (Spain) por Palou, Lluís, Rosales, Raquel, Taberner, Verònica, Vilella-Esplá, José

“…Their pathogenicity was demonstrated by fulfilling Koch’s postulates. Disease development at 20 and 5ºC was characterized on artificially inoculated dates…”
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Identification and characterization of Pythium graminicola, causal agent of kikuyu yellows in Argentina por Grijalba, Pablo Enrique, Palmucci, Hemilse E., Guillin, Eduardo Alejandro

“…Pathogenicity tests were carried out and Koch’s postulates were fulfilled. This is the first report of P. graminicola causing kikuyu yellows in Argentina and in the world.…”
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Postharvest fungal diseases of loquat cv. ‘Algerie’ in Spain por Palou, Lluís, Sánchez-Torres, Paloma, Montesinos-Herrero, Clara, Taberner, Verònica

“…Pathogenicity of common isolates was demonstrated by fulfilling Koch’s postulates. Disease development was assessed on artificially inoculated loquats stored at either 20 or 5°C. …”
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Postharvest decay of loquat fruit (Eriobotrya japonica (Thunb.) Lindl.) in Spain por Palou, Lluís, Sánchez-Torres, Paloma, Montesinos-Herrero, Clara, Taberner, Verònica

“…Pathogenicity of common isolates was demonstrated by fulfilling Koch’s postulates. Disease development was assessed on artificially inoculated loquats stored at either 20 or 5°C. …”
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First confirmed report of Colletotrichum coccodes causing black dot on potato in Mexico por Pérez-Mora, Juan Luis, Cota-Rodríguez, David Alonso, Rodríguez-Palafox, Edgar Edel, García-León, Elizabeth, Beltrán-Peña, Hugo, Bernardi Lima, Nelson, Tovar Pedraza, Juan Manuel

“…Pathogenicity tests were conducted, and Koch’s postulates were fulfilled with two isolates of this fungus. …”
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Development of a full-genome cDNA clone of Citrus leaf blotch virus and infection of citrus plants por Vives, María C., Martin, Susana, Ambrós, Silvia, Renovell, Agueda, Navarro, Luis, Pina, José A., Moreno, Pedro, Guerri, José

“…CLBV isolates are associated with symptom production in citrus including leaf blotching of Dweet tangor and stem pitting in Etrog citron (Dweet mottle disease), and some isolates are associated with bud union crease on trifoliate rootstocks, but Koch's postulates for this virus were not fulfilled. …”
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Crop loss, aetiology, and epidemiology of citrus black spot in Ghana por Brentu, Francis C., Oduro, Kwadwo A., Offei, Samuel K., Odamtten, George T., Vicent, Antonio, Peres, Natalia A., Timmer, Lavern W.

“…The fungus was re-isolated from symptomatic, inoculated fruit completing Koch's postulates. Isolates of the endophyte G. mangiferae did not induce symptoms in the pathogenicity tests. …”
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Incidence and etiology of postharvest fungal diseases of loquat fruit (Eriobotrya japonica (Thunb.) Lindl. cv. ‘Algerie’) in Alacant province (Spain) por Palou, Lluís, Sánchez-Torres, Paloma, Montesinos-Herrero, Clara, Taberner, Verònica

“…Pathogenicity of selected isolates was demonstrated by fulfilling Koch’s postulates and disease development was assessed on artificially inoculated loquats stored at either 20 or 5 °C.…”
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Fungal pathogens causing postharvest decay of pomegranate fruit in Spain por Palou, Lluís, Vicent, Antonio

“…In all cases, fungi from symptomatic fruit were isolated, purified and identified by means of macroscopic and microscopic observation and molecular techniques. Pathogenicity (Koch’s postulates) and disease development at ambient and low temperatures were tested with pomegranates artificially inoculated with the fungi. …”
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Ceratobasidium sp. AG-A, root pathogen of Calibrachoa hybrida por Borrelli, Nicolás Pablo, Moreno, María Virginia, Stenglein, Sebastian, Stancanelli, Santiago, Wright, Eduardo R., Rivera, Marta Carolina

“…One of the isolates was selected and identified using morphological and molecular markers, while its pathogenicity was confirmed by Koch’s postulates. The obtained results allow concluding that Ceratobasidium sp. …”
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Evidence that Xylella fastidiosa is the Causal Agent of Almond Leaf Scorch Disease in Alicante, Mainland Spain (Iberian Peninsula) por Marco-Noales, Ester, Barbé, Silvia, Monterde, Adela, Navarro-Herrero, Inmaculada, Ferrer, Amparo, Dalmau, Vicente, Aure, Cristina M., Domingo-Calap, María L., Landa, Blanca B., Roselló, Montserrat

“…With the fulfillment of Koch’s postulates, we have demonstrated that X. fastidiosa is the causal agent of the almond leaf scorch disease in the Alicante outbreak…”
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Anthracnose on alfalfa caused by Colletotrichum americae-borealis in Córdoba province, Argentina por Bernanrdi Lima, Nelson, Conforto, Erica Cinthia, Serri, Dannae Lilia, Campilongo Mancilla, Ernesto Javier, Stenglein, Sebastian, Vargas Gil, Silvina

“…Pathogenicity testing showed these isolates were pathogenic to alfalfa and Koch's postulates were verified by re-isolating the pathogen.…”
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Phomopsis head rot caused by Diaporthe helianthi : A new disease on sunflower in Argentina por Colombo, Denis Nahuel, Figueruelo, Andrea Mariana, Paniego, Norma Beatriz, Comerio, Ricardo Mario, Corro Molas, Andres Ezequiel

“…Pathogenicity experiments confirmed the presence of similar disease symptoms in inoculated sunflower heads, and D. helianthi was consistently reisolated from these organs. Our Koch's postulates testing results on heads constitute the first confirmed report that D. helianthi is the cause of Phomopsis head rot on sunflower in Argentina.…”
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First report of Dactylonectria alcacerensis, Dactylonectria macrodidyma and Ilyonectria liriodendri associated with black-foot disease of grapevine in Argentina por Longone, Maria Valeria, Escoriaza, Maria Georgina, Paolinelli, Marcos, Gramaje, David

“…All fungi were re-isolated only from necrotic lesions of root and base of inoculated canes, fulfilling Koch's postulates. No symptoms were observed on the control plants. …”
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Etiología de la enfermedad punta de cigarro en plantaciones de banana en las provincias de Salta y Jujuy por Ortiz, Claudio Manuel

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Caracterización de la bacteria Xylella fastidiosa en plantaciones de olivo de Argentina por Tolocka, Patricia

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First report of Xanthomonas prunicola causing bacterial leaf streaks on wheat in Argentina por Martino, Julia Andrea, Fernandez, Franco Daniel, Pozzi, Elizabeth Alicia, Alberione, Enrique Javier, Bainotti, Carlos Tomas, Marquez, Nathalie, Tolocka, Patricia, Salines, Nicolas, Gomez, Dionisio Tomas, Donaire, Guillermo Manuel, Conci, Luis Rogelio, Alemandri, Vanina Maria

“…A bacterial suspension containing 108 CFU mL−1 grown for 48 h on LB medium at 28 °C was injected into three-week-old leaves of wheat plants to fulfill Koch’s postulates. After 5 days, plants showed symptoms of chlorosis, streaks and then necrosis on the leaves. …”
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