Ensifer (Sinorhizobium) fredii Interacted More Efficiently than Bradyrhizobium japonicum with Soybean

Aims: The purpose of this work was to compare the efficiency of Bradyrhizobium japonicum and Ensifer fredii to infect and develop nodules on soybean. Furthermore we also evaluated the competitive ability of both species and how this was altered by the plant genotype and the soil pH. Study Design: Th...

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Autores principales: Pastorino, Graciela Noemí, Martínez Alcántara, Virginia, Malbrán, Ismael, Videira, Liliana, Sarinelli, Juan, Balatti, Pedro Alberto
Formato: Articulo
Lenguaje:Inglés
Publicado: 2015
Materias:
Ciencias Agrarias
Soja
Simbiosis
Bradyrhizobium; Ensifer fredii; nodulation; competition
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/66695
http://www.sciencedomain.org/download/NjM0NkBAcGY
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-66695
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Agrarias
Soja
Simbiosis
Bradyrhizobium; Ensifer fredii; nodulation; competition
spellingShingle Ciencias Agrarias
Soja
Simbiosis
Bradyrhizobium; Ensifer fredii; nodulation; competition
Pastorino, Graciela Noemí
Martínez Alcántara, Virginia
Malbrán, Ismael
Videira, Liliana
Sarinelli, Juan
Balatti, Pedro Alberto
Ensifer (Sinorhizobium) fredii Interacted More Efficiently than Bradyrhizobium japonicum with Soybean
topic_facet Ciencias Agrarias
Soja
Simbiosis
Bradyrhizobium; Ensifer fredii; nodulation; competition
description Aims: The purpose of this work was to compare the efficiency of Bradyrhizobium japonicum and Ensifer fredii to infect and develop nodules on soybean. Furthermore we also evaluated the competitive ability of both species and how this was altered by the plant genotype and the soil pH. Study Design: The design of the experiments was completely at random and the number of replicates was different on each of the different experiments tested. Place and Duration of Study: The place of the studies was the Facultad de Ciencias Agrarias y Forestales Universidad Nacional de La Plata and the duration of the study was a year and a half. Methodology: Roots of inoculated soybean plants were fixed and the number of infection initiation sites was evaluated by means of microscopic observation. The number of nodules developed by inoculated plants was also evaluated. Results: Bacteria were equally effective at developing infection initiation sites on soybean however, E. fredii induced more nodules than B. japonicum, probably due to the fact that E. fredii is more efficient than B. japonicum at nodulating soybean. However, Bradyrhizobium was more competitive than E. fredii which was unrelated to the soybean genotype but altered by the soil pH. Under the conditions described E. fredii was less competitive than B. japonicum probably due to the high cultivar-rhizobia specificity. Conclusion: E. fredii was as efficient as B. japonicum at nodulating soybeans. However Bradyrhizobium was a better competitor though this is affected by the plant genotype and the soil pH. The selection and use of fast growing rhizobia in inoculant production seems to depend on broadening the genetic base of soybean or in selecting cultivars with specificity for fast growing rhizobia.
format Articulo
Articulo
author Pastorino, Graciela Noemí
Martínez Alcántara, Virginia
Malbrán, Ismael
Videira, Liliana
Sarinelli, Juan
Balatti, Pedro Alberto
author_facet Pastorino, Graciela Noemí
Martínez Alcántara, Virginia
Malbrán, Ismael
Videira, Liliana
Sarinelli, Juan
Balatti, Pedro Alberto
author_sort Pastorino, Graciela Noemí
title Ensifer (Sinorhizobium) fredii Interacted More Efficiently than Bradyrhizobium japonicum with Soybean
title_short Ensifer (Sinorhizobium) fredii Interacted More Efficiently than Bradyrhizobium japonicum with Soybean
title_full Ensifer (Sinorhizobium) fredii Interacted More Efficiently than Bradyrhizobium japonicum with Soybean
title_fullStr Ensifer (Sinorhizobium) fredii Interacted More Efficiently than Bradyrhizobium japonicum with Soybean
title_full_unstemmed Ensifer (Sinorhizobium) fredii Interacted More Efficiently than Bradyrhizobium japonicum with Soybean
title_sort ensifer (sinorhizobium) fredii interacted more efficiently than bradyrhizobium japonicum with soybean
publishDate 2015
url http://sedici.unlp.edu.ar/handle/10915/66695
http://www.sciencedomain.org/download/NjM0NkBAcGY
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