Data/hora: 11/06/2024 06:39:04

Provedor de dados: 	Genetics and Molecular Biology	
País: 	Brazil	
Título: 	Comparative analysis of differentially expressed sequence tags of sweet orange and mandarin infected with Xylella fastidiosa	
Autores: 	Souza,Alessandra A. de; Takita,Marco A.; Coletta-Filho,Helvécio D.; Campos,Magnólia A.; Teixeira,Juliana E.C.; Targon,Maria Luísa P.N.; Carlos,Eduardo F.; Ravasi,Juliano F.; Fischer,Carlos N.; Machado,Marcos A.	
Data: 	2007-01-01	
Ano: 	2007	
Palavras-chave: 	ESTs; Citrus variegated chlorosis; Biotic stress; CitEST; Phytopathogen.	
Resumo: 	The Citrus ESTs Sequencing Project (CitEST) conducted at Centro APTA Citros Sylvio Moreira/IAC has identified and catalogued ESTs representing a set of citrus genes expressed under relevant stress responses, including diseases such as citrus variegated chlorosis (CVC), caused by Xylella fastidiosa. All sweet orange (Citrus sinensis L. Osb.) varieties are susceptible to X. fastidiosa. On the other hand, mandarins (C. reticulata Blanco) are considered tolerant or resistant to the disease, although the bacterium can be sporadically detected within the trees, but no disease symptoms or economic losses are observed. To study their genetic responses to the presence of X. fastidiosa, we have compared EST libraries of leaf tissue of sweet orange Pêra IAC (highly susceptible cultivar to X. fastidiosa) and mandarin ‘Ponkan’ (tolerant) artificially infected with the bacterium. Using an in silico differential display, 172 genes were found to be significantly differentially expressed in such conditions. Sweet orange presented an increase in expression of photosynthesis related genes that could reveal a strategy to counterbalance a possible lower photosynthetic activity resulting from early effects of the bacterial colonization in affected plants. On the other hand, mandarin showed an active multi-component defense response against the bacterium similar to the non-host resistance pattern.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572007000500024	
Editor: 	Sociedade Brasileira de Genética	
Relação: 	10.1590/S1415-47572007000500024	
Formato: 	text/html	
Fonte: 	Genetics and Molecular Biology  v.30 n.3 suppl.0 2007	
Fonte: 	info:eu-repo/semantics/openAccess