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Characterization of the morphological response of susceptible and resistant d of cassava Manihot esculenta Crantz to vascular bacterial blight caused histoqujmica Xanthomonas axonopodis pv manihotis.

In the present study, optical microscopy was used to perform a comparative analysis of the morphological and histochemical changes in the stem of a susceptible TMS and a resistant CM cassava variety at 7 and 14 days after inoculation with the pathogenic strain CIO The resistant variety was detected to generate callose barriers on the cell walls of the cortical parenchyma and phloem, maintaining the functionality of this tissue.

Una ciotquimica las principales limitaciones del cultivo de yuca es la bacteriosis vascular, ocasionada por la bacteria Xanthomonas axonopodis pv. En muchos casos se presenta necrosis de los haces vasculares y en casos extremos puede incluso ocasionar la muerte hiwtoquimica de la planta 1 Estos estudios, encontraron que se presentaban respuestas de defensa similares en tejidos vasculares de plantas resistentes y susceptibles, sin embargo la intensidad de las respuestas fue mayor en las variedades resistentes.


Las muestras a cortar fijaron en FAA Tinciones diferenciales en secciones transversales de Manihot esculenta. A- Vista general azul de astra-fucsina ; B,C. Vista general observada bajo fluorescencia azul de anilina ; F.

Estos compuestos se presentaron en la variedad resistente y susceptible, presentando diferencias significativas entre variedades solamente en el floema.

Sin embargo, al analizar las respuestas a los 14 dpi si se observaron diferencias entre las dos variedades de yuca. En concordancia con los resultados anteriores, Pereira et al.

Host responses to vascular infection. Annual Review of Phytopathology, Palo Alto v.

Physiological and Molecular Plant Pathology, Amsterdam, v. A system of defense in depth provided by vascular parenchyma cells of tomato in response to vascular infection with Fusarium oxysporum f.

histoquimica y citoquimica pdf

Hrp mutant of Pseu domonas syringae pv. Plant Physiology, Waterbury, v. Extracellular polysaccharides from Xanthomonas axonopodis pv. Molecular Plant-Microbe Interactions, St.

Libreria internazionale Seeber, Firenze, 8. Shaping the Evolution of the Plant Immune Response. Food and Agriculture Organization of the United Nations. The state of food and agriculture. A guide to sustainable production intensification. Physiology and molecular aspects of Verticillium wilt disease by V.

citoquimica e histoquimica pdf

Molecular Plant Pathology, Hoboken, v. Pseudomonas syringae type III effector suppresses cell wall-based extracellular defense in susceptible Arabidopsis plants. Basal defense induced in pepper by lipopolysaccharides are suppressed by Xanthomonas campestris pv. Cytochemistry of defense responses in cassava infected by Xanthomonas campestris pv.

Canadian Journal of Microbiology, Otawa, v. Etude comparative du development de Xanthomonas campestris pv manihotis chez des varietes de manioc sensibles et resistantes. Approches histologique, ultrastructurales et cytochimique des mecanismes de la pathogenese. Use of ranks in one-criterion variance analysis. Journal of the American Statistical Association, v.


citoquimica e histoquimica pdf – PDF Files

Limitations of Cassava Bacterial Blight: Role of stomata in plant innate immunity and foliar bacterial diseases. RNAseq analysis of cassava reveals similar plant responses upon infection with pathogenic and non-pathogenic strains of Xanthomonas axonopodis pv. The role of phenylalanine ammonia lyase during cassava bacterial blight and cassava bacterial necrosis.

Journal of Plant Research, Tokyo, v. A language and environment for statistical computing. Plant pathogen recognition mediated by promoter activation of the pepper Bs3 resistance gene. Science, New York, v. Plant microtechnique and microscopy. Oxford University Press, Simple method for differential staining of paraffin embedded plant material using toluidine blue O. Stain Technology, Baltimore, v. The xylem as battleground for plant hosts and vascular wilt pathogens. Frontiers in Plant, Science Lausanne, v.

This is an open-access article distributed under the terms of the Creative Commons Attribution License. Services on Demand Journal.

Callose deposits; tylosis; phenolic compounds; epifluorescence. Respuestas a nivel del xilema: How to cite this article.