Translocation and exudation of tumor metabolites in crown galled plants

Show simple item record Savka, Michael en_US Black, Robert en_US Binns, Andrew en_US Farrand, Stephen en_US 2006-08-28T20:04:20Z en_US 2006-08-28T20:04:20Z en_US 1996-05 en_US
dc.identifier.citation Molecular Plant-Microbe Interactions 9N4 (1996) 310-313 en_US
dc.identifier.issn 0894-0282 en_US
dc.identifier.uri en_US
dc.description.abstract Crown gall tumors are induced on susceptible plants by pathogenic strains of Agrobacterium. These neoplastic plants cells produce metabolites, called opines, which provide a source of nutrients to colonizing agrobacteria. Opine production previously has been shown to influence microbial communities in the immediate vicinity of the tumor. We have obtained evidence for opine translocation to and exudation from distal uninfected regions of the plant host. Grafted plants made from an opine-producing transgenic scion with a wild-type stock, or with a wild-type scion and an opine-producing stock accumulate opines in the wild-type portions of the plant. Moreover, opines were detected in root, stem, and leaf tissues of nontransgenic plants on which stem crown galls had been induced by pathogenic strains of Agrobacterium. These plants exuded opines from their roots as a component of their root exudates. Translocation of opines from the tumor to other parts of the plant, and their exudation from roots, indicates that these biologically active compounds are available to opine-catabolizing microbes that have not induced the tumors but are present in the rhizosphere or on portions of the plant distant from the site of the gall. en_US
dc.format.extent 35991 bytes en_US
dc.format.mimetype application/pdf en_US
dc.language.iso en_US en_US
dc.publisher American Phytopathological Society: Molecular Plant-Microbe Interactions en_US
dc.subject Bacterial infections en_US
dc.subject Plants en_US
dc.subject Tumors en_US
dc.title Translocation and exudation of tumor metabolites in crown galled plants en_US
dc.type Article en_US

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