title: Gluconacetobacter diazotrophicus Elicits a Sugarcane Defense Response Against a Pathogenic Bacteria Xanthomonas albilineans.
abstract: A new role for the plant growth-promoting nitrogen-fixing endophytic bacteria Gluconacetobacter diazotrophicus has been identified and characterized while it is involved in the sugarcane-Xanthomonas albilineans pathogenic interactions. Living G.diazotrophicus possess and/or produce elicitor molecules which activate the sugarcane defense response resulting in the plant resistance to X. albilineans, in this particular case controlling the pathogen transmission to emerging agamic shoots. A total of 47 differentially expressed transcript derived fragments (TDFs) were identified by cDNA-AFLP. Transcripts showed significant homologies to genes of the ethylene signaling pathway (26%), proteins regulates by auxins (9%), beta-1,3 Glucanase proteins (6%) and ubiquitin genes (4%), all major signaling mechanisms. Results point toward a form of induction of systemic resistance in sugarcane-G. diazotrophicus interactions which protect the plant against X. albilineans attack.
authors.affiliation: National Institute for Sugarcane Research; Boyero, Havana City, Cuba.
authors.forename: Ariel D
authors.initials: AD
authors.lastname: Arencibia
authors.forename: Fabiano
authors.initials: F
authors.lastname: Vinagre
authors.forename: Yandi
authors.initials: Y
authors.lastname: Estevez
authors.forename: Aydiloide
authors.initials: A
authors.lastname: Bernal
authors.forename: Juana
authors.initials: J
authors.lastname: Perez
authors.forename: Janaina
authors.initials: J
authors.lastname: Cavalcanti
authors.forename: Ignacio
authors.initials: I
authors.lastname: Santana
authors.forename: Adriana S
authors.initials: AS
authors.lastname: Hemerly