title: [The plant growth-promoting rhizobacterium Arthrobacter agilis UMCV2 endophytically colonizes Medicago truncatula].
abstract: Arthrobacter agilis UMCV2 is a rhizosphere bacterium that promotes legume growth by solubilization of iron, which is supplied to the plant. A second growth promotion mechanism produces volatile compounds that stimulate iron uptake activities. Additionally, A. agilis UMCV2 is capable of inhibiting the growth of phytopathogens. A combination of quantitative polymerase chain reaction and fluorescence in situ hybridization techniques were used here to detect and quantify the presence of the bacterium in the internal tissues of the legume Medicago truncatula. Our results demonstrate that A. agilis UMCV2 behaves as an endophytic bacterium of M. truncatula, particularly in environments where iron is available.
authors.affiliation: Universidad Michoacana de San Nicolás de Hidalgo, Instituto de Investigaciones Químico-Biológicas, Edificio B5, Ciudad Universitaria, Morelia, Michoacán, México.
authors.forename: Maria Elizabeth
authors.initials: ME
authors.lastname: Aviles-Garcia
authors.affiliation: Universidad Michoacana de San Nicolás de Hidalgo, Instituto de Investigaciones Químico-Biológicas, Edificio B5, Ciudad Universitaria, Morelia, Michoacán, México.
authors.forename: Idolina
authors.initials: I
authors.lastname: Flores-Cortez
authors.affiliation: Universidad Michoacana de San Nicolás de Hidalgo, Instituto de Investigaciones Químico-Biológicas, Edificio B5, Ciudad Universitaria, Morelia, Michoacán, México.
authors.forename: Christian
authors.initials: C
authors.lastname: Hernández-Soberano
authors.affiliation: Universidad Michoacana de San Nicolás de Hidalgo, Instituto de Investigaciones Químico-Biológicas, Edificio B5, Ciudad Universitaria, Morelia, Michoacán, México.
authors.forename: Gustavo
authors.initials: G
authors.lastname: Santoyo
authors.affiliation: Universidad Michoacana de San Nicolás de Hidalgo, Instituto de Investigaciones Químico-Biológicas, Edificio B5, Ciudad Universitaria, Morelia, Michoacán, México. Electronic address: vcantero@umich.mx.
authors.forename: Eduardo
authors.initials: E
authors.lastname: Valencia-Cantero
mesh_terms: D059827:Agricultural Inoculants; D001173:Arthrobacter / Q000235:genetics / Q000302:isolation & purification / Q000502:physiology*; D003470:Culture Media; D004269:DNA, Bacterial / Q000032:analysis; D060026:Endophytes / Q000235:genetics / Q000302:isolation & purification / Q000502:physiology*; D005296:Ferrous Compounds / Q000008:administration & dosage; D007501:Iron / Q000378:metabolism; D029902:Medicago / Q000254:growth & development / Q000378:metabolism / Q000382:microbiology*; D018515:Plant Leaves / Q000382:microbiology; D018517:Plant Roots / Q000382:microbiology; D058441:Rhizosphere; D013559:Symbiosis
chemical_list: D003470:Culture Media; D004269:DNA, Bacterial; D005296:Ferrous Compounds; C020748:ferrous sulfate; D007501:Iron
keywords: Arthrobacter agilis; Bacterias endófitas; Endophytic bacterium; Legumes; Leguminosas