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Artículo

Closely-related Xanthomonas citri subsp. Citri isolates trigger distinct histological and transcriptional responses in Citrus limon

Orce, Ingrid GeorginaIcon ; Debes, Mario AlbertoIcon ; Sendín, Lorena NoeliaIcon ; Luque, Ana; Arias, Marta; Vojnov, Adrián AlbertoIcon ; Marano, María RosaIcon ; Castagnaro, Atilio PedroIcon ; Filippone, María PaulaIcon
Fecha de publicación: 11/2016
Editorial: Universidade de São Paulo
Revista: Scientia Agricola
ISSN: 0103-9016
e-ISSN: 1678-992X
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Otras Ciencias Biológicas; Otras Ciencias Biológicas

Resumen

Citrus canker, caused by Xanthomonas citri subsp. citri (Xcc), has an important economic impact on the citrus industry. Extensive information is available about the disease but, nevertheless, the study of plant-pathogen interactions could provide new information in the un­derstanding of citrus canker disease. A new isolate has been identified, Xcc AT, which has a high genetic similarity (> 90 %) to the virulent Xcc T strain based on genetic clustering analyses of the rep-PCR fingerprinting patterns, but it does not produce cankerous lesions in Citrus limon. In this study, we compared C. limon responses to Xcc AT and to the virulent Xcc T strain at both histological and transcriptional levels. Histologically, leaves inoculated with Xcc AT exhibited neither a typical disordering of the spongy mesophyll, nor a swelling of epidermis. A particular content (undetermined) was also found in mesophyll cells near the stomata, together with increased starch accumulation. The transcriptomic profiles were compared by cDNA-AFLP technique. A total of 121 fragments derived from transcript (TDF) were either specifically induced or repressed by the isolates, and 62 were sequenced. Analysis of global expression identified different classes of genes known to be involved in plant-pathogen interactions. This study constitutes the first approach of the specific interaction between the avirulent Xcc AT isolate and C. limon.
Palabras clave: Canker , Cdna-Aflp , Gene Expression , Microscopy , Plant Defense
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution 2.5 Unported (CC BY 2.5)
Identificadores
URI: http://hdl.handle.net/11336/52638
DOI: http://dx.doi.org/10.1590/0103-9016-2015-0409
URL: http://ref.scielo.org/zwd2jh
Colecciones
Articulos(CCT - NOA SUR)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - NOA SUR
Articulos(IBR)
Articulos de INST.DE BIOLOGIA MOLECULAR Y CELULAR DE ROSARIO
Articulos(ICT - MILSTEIN)
Articulos de INST.DE CS. Y TECNOLOGIA "DR. CESAR MILSTEIN"
Articulos(INIQUI)
Articulos de INST.DE INVEST.PARA LA INDUSTRIA QUIMICA (I)
Citación
Orce, Ingrid Georgina; Debes, Mario Alberto; Sendín, Lorena Noelia; Luque, Ana; Arias, Marta; et al.; Closely-related Xanthomonas citri subsp. Citri isolates trigger distinct histological and transcriptional responses in Citrus limon; Universidade de São Paulo; Scientia Agricola; 73; 6; 11-2016; 552-558
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