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dc.contributor.authorBago, A.-
dc.contributor.authorCano, C.-
dc.contributor.authorToussaint, J.-
dc.contributor.authorSmith, S.-
dc.contributor.authorDickson, S.-
dc.identifier.citationMycorrhiza, 2006; 16(6):429-436-
dc.descriptionCopyright Springer-Verlag 2006-
dc.description.abstractMonoxenic symbioses between the arbuscular mycorrhizal (AM) fungus Glomus intraradices and two nontransformed tomato root organ cultures (ROCs) were established. Wild-type tomato ROC from cultivar “RioGrande 76R” was employed as a control for mycorrhizal colonization and compared with its mutant line (rmc), which exhibits a highly reduced mycorrhizal colonization (rmc) phenotype. Structural features of the two root lines were similar when grown either in soil or under in vitro conditions, indicating that neither monoxenic culturing nor the rmc mutation affected root development or behavior. Colonization by G. intraradices in monoxenic culture of the wild-type line was low (<10%) but supported extensive development of extraradical mycelium, branched absorbing structures, and spores. The reduced colonization of rmc under monoxenic conditions (0.6%) was similar to that observed previously in soil. Extraradical development of runner hyphae was low and proportional to internal colonization. Few spores were produced. These results might suggest that carbon transfer may be modified in the rmc mutant. Our results support the usefulness of monoxenically obtained mycorrhizas for investigation of AM colonization and intraradical symbiotic functioning.-
dc.description.statementofresponsibilityAlberto Bago, Custodia Cano, Jean-Patrick Toussaint, Sally Smith and Sandy Dickson-
dc.subjectGlomus intraradices-
dc.subjectMonoxenic cultures-
dc.subjectMycelium development-
dc.subjectMycorrhiza-defective mutant-
dc.subjectNontransformed tomato roots-
dc.titleInteractions between the arbuscular mycorrhizal (AM) fungus Glomus intraradices and nontransformed tomato roots of either wild-type or AM-defective phenotypes in monoxenic cultures-
dc.typeJournal article-
Appears in Collections:Aurora harvest 2
Earth and Environmental Sciences publications

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