Clavibacter cana-de-açúcar: genes associados com a defesa da planta contra bactérias patogênicas habitantes do xilema

• Processo: 00/07424-0
• Modalidade de apoio: Auxílio à Pesquisa - Programa GENOMA
• Data de Início da vigência: 01 de agosto de 2000
• Data de Término da vigência: 31 de julho de 2002
• Área do conhecimento: Ciências Biológicas - Genética - Genética Molecular e de Microorganismos
• Pesquisador responsável: Éder Antônio Giglioti
• Beneficiário: Éder Antônio Giglioti
• Instituição Sede: Centro de Ciências Agrárias (CCA). Universidade Federal de São Carlos (UFSCAR). Araras , SP, Brasil
• Assunto(s): Cana-de-açúcar Mineração de dados Genes Xilema
• Palavra(s)-Chave do Pesquisador: Cana-De-Acucar | Clavibacter | Data Mining | Entupimento Do Xilema | Genes | Resistencia

Resumo

Claviacter xyli subsp. xyli (lxx) is the causal agent bacterium of ratoon stunting disease (RSD). In Brazil, the total income lost by the sugarcane producers of the State of Sao Paulo, due to RSD incidence in the last 30 years period, corresponds to approximately U$ 2 billion. Lxx growth is limited to the vessels, tracheids and lacunae of the xylem, where it is frequently associated with a matrix material, leading to the production of gels and gums. Thus, yield losses are induced mainly by the lower water and nutrient uptake through the clogged xylem vessels. Sugarcane probably has innate chemical and/or structural defenses enabling it to recognize lxx and to prevent its xylem colonization either by callose deposition, cells lignifications, tyloses formation, phytoalexin synthesis, gels or phenolic infusions. This data-mining annotation is directed for identification of genes that might be associated with sugarcane defense mechanisms against cxx at the xylem vessels. (AU)