Eucalyptus ESTs involved in mechanisms against plant pathogens and environmental stresses

Summa Phytopathologica

Daniel Dias Rosa²  Edson Luiz Furtado²  Leonardo Pires Boava²  Celso Luis Marino¹  Edson Seizo Mori²  Iraê Amaral Guerrini²  Edivaldo Domingues Veline²  Carlos Frederico Wilcken² 

[1] ,Universidade Estadual Paulista Faculdade de Ciências Agronômicas Botucatu SP

关键词: Eucalyptus;    resistance;    phytoalexins;    PR-proteins;    Eucalyptus;    resistência;    fitoalexinas;    Proteínas-RP;   

DOI  :  10.1590/S0100-54052010000400002

来源: SciELO

【 摘 要 】

Eucalypt plantation has high economical importance in Brazil; however, it has been attacked by various pathogens under different environmental stress conditions. Disease resistance and survival under unfavorable environmental conditions have revealed that the eucalypt has developed highly efficient defense systems. Here we show the results of the Eucalyptus ESTs Genome Project (FORESTs). Using the expressed sequence tags (ESTs) obtained by the Project, contigs of similar sequences from each cDNA library induced and not induced by stress agents were formed, and cDNA sequences similar to other already known molecules, such as plant-signaling molecules, phytoalexins, lignin biosynthesis pathways, PR-proteins and putative genes corresponding to enzymes involved in the detoxification of reactive oxygen species, were identified. We also present general considerations about the mechanisms of Eucalyptus defense against biotic and abiotic stresses. These data are of extreme importance for future eucalypt breeding programs aimed at developing plants with enhanced resistance against pathogens and environmental stresses.

【 授权许可】

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