| Full text | |
| Author(s): |
Karina Maia Dabbas
[1]
;
Maria Inês Tiraboschi Ferro
[2]
;
Neli Martins de Barros
[3]
;
Marcelo Luiz de Laia
[4]
;
Sonia Marli Zingaretti
[5]
;
Poliana Fernanda Giachetto
[6]
;
Vicente Alberto de Moraes
[7]
;
Jesus Aparecido Ferro
[8]
Total Authors: 8
|
| Affiliation: | [1] Universidade Estadual Paulista. Faculdade de Ciências Agrárias e Veterinárias de Jaboticabal. Departamento de Tecnologia
[2] Universidade Estadual Paulista. Faculdade de Ciências Agrárias e Veterinárias de Jaboticabal. Departamento de Tecnologia
[3] Universidade Estadual Paulista. Faculdade de Ciências Agrárias e Veterinárias de Jaboticabal. Departamento de Tecnologia
[4] Universidade Estadual Paulista. Faculdade de Ciências Agrárias e Veterinárias de Jaboticabal. Departamento de Tecnologia
[5] Universidade Estadual Paulista. Faculdade de Ciências Agrárias e Veterinárias de Jaboticabal. Departamento de Tecnologia
[6] Universidade Estadual Paulista. Faculdade de Ciências Agrárias e Veterinárias de Jaboticabal. Departamento de Tecnologia
[7] Centro de Tecnologia Canavieira
[8] Universidade Estadual Paulista. Faculdade de Ciências Agrárias e Veterinárias de Jaboticabal. Departamento de Tecnologia
Total Affiliations: 8
|
| Document type: | Journal article |
| Source: | Summa Phytopathologica; v. 32, n. 4, p. 328-338, 2006-09-00. |
| Abstract | |
The leaf scald disease, caused by the xylem-invading pathogen Xanthomonas albilineans, is one of the most devastating diseases of sugarcane. Chronic symptoms are characterized by white pencil-line streaks surrounding invaded leaf vascular bundles, which may result in fully burnt leaves, and by lateral bud development. In this work, using a macroarray approach, we analyzed the expression profile of 3,575 ESTs (expressed sequence tags) of sugarcane, in two sugarcane varieties, classified as susceptible (SP78-4467) or resistant (SP82-1176) to Xanthomonas albilineans infection. Membranes were constructed with ESTs from sugarcane leaf roll tissues and hybridized with radio labeled cDNAs from infected and non-infected sugarcane tissue. Data analysis showed a different pattern of expression during pathogen infection. This approach allowed the identification of differentially induced ESTs for proteins involved isoprenoid biosynthesis, transmembrane LRR protein, leucine zipper, lignification, cold tolerance, plant response and environmental adaptation in the resistant variety. Repressed ESTs in this variety were related to proteins involved in plant cellular expansion, detoxification, and auxin transport. In the susceptible variety, the differentially repressed ESTs were related to proteins involved in plant defense response, Ethylene biosynthesis, and transcription regulation. (AU) | |