Effect of actinobacteria on Lotus tenuis: Mesorhizobium loti symbiosis: preliminary study

Authors
Solans, Mariana; Ruiz, Oscar Adolfo; Wall, Luis Gabriel
Publication Year
2015
Language
English
Format
article
Status
Published version
Description
The effect of the actinobacteria on the legume Lotus tenuis, a model forage plant of the Flooding Pampa region in Argentina was to promote plant growth and root nodulation. L. tenuis seedlings were inoculated either with the symbiotic N2-fixing strain Mesorhizobium loti, or with saprophytic strain of Streptomyces MM40, Actinoplanes ME3, or Micromonospora MM18, or co-inoculated with a combination of one, two or three of them, together with the rhizobium. The plants were grown in pouches and fertilized with three nitrogen levels (low, medium and high). L. tenuis plants co-inoculated with the symbiotic M. loti and actinobacteria showed an increase in plant biomass and nodulation. Plants fertilized with high N levels (inhibitory for nodulation by M. loti) were nodulated if the M. loti strain was added simultaneously with actinobacteria. These preliminary results show that actinobacteria have potential agronomic application which should be further explored.
Fil: Solans, Mariana. Universidad Nacional del Comahue. Centro Regional Universitario; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina. Universidad Nacional del Comahue. Centro Regional Universitario; Argentina
Fil: Ruiz, Oscar Adolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Biotecnológicas. Instituto de Investigaciones Biotecnológicas ; Argentina
Fil: Wall, Luis Gabriel. Universidad Nacional de Quilmes. Departamento de Ciencia y Tecnología. Laboratorio de Investigación en Interacciones Biológicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Subject
ACTINOBACTERIA
LOTUS TENUIS
N- FERTILIZATION
NODULATION
PLANT GROWTH
Otras Ciencias Biológicas
Ciencias Biológicas
CIENCIAS NATURALES Y EXACTAS
Access level
Restricted access
License
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repository
CONICET Digital (CONICET)
Institution
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identifier
oai:ri.conicet.gov.ar:11336/38143