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Growth, nutrient uptake and symbiosis with rhizobia and arbuscular mycorrhizal fungi in Lotus tenuis plants fertilized with different phosphate sources and inoculated with the phosphate-solubilizing bacterium Pantoea eucalypti M91

Abstract
Background and aims: The aim of this work was to evaluate the ability of P fertilization and phosphate-solubilizing bacteria (PSB) inoculation to promote the growth of L. tenuis in typical soils of the Salado River Basin (Argentina) with low P availability. Methods: Aboveground biomass and P and N levels were evaluated in field-grown L. tenuis plants inoculated with Pantoea eucalypti M91, either without fertilization or in combination with phosphate rock [ver mas...]
Background and aims: The aim of this work was to evaluate the ability of P fertilization and phosphate-solubilizing bacteria (PSB) inoculation to promote the growth of L. tenuis in typical soils of the Salado River Basin (Argentina) with low P availability. Methods: Aboveground biomass and P and N levels were evaluated in field-grown L. tenuis plants inoculated with Pantoea eucalypti M91, either without fertilization or in combination with phosphate rock and triple superphosphate (TSP). The impact of P fertilization and inoculation on the symbiotic interactions between L. tenuis and native rhizobia bacteria and arbuscular mycorrhizal fungi was also evaluated. Results: Inoculation with M91 increased the L. tenuis biomass production and P concentration in shoots, at an early stage of plant growth. The combined treatment of inoculation with M91 and TSP significantly increased the P and N content in shoots compared to non-inoculated plants, fertilized or not. P. eucalypti M91 was found to endophytically colonize roots and leaves of L. tenuis plants grown in vitro and also under field conditions. Conclusions: The results suggesting that inoculation of L. tenuis with the PSB such as P. eucalypti M91 strain might allow more efficient use of N and P and a more sustainable option for grasslands producers from the Salado River Basin, in order to reduce costs and avoid increased levels of P insoluble in soils. [Cerrar]
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Author
Castagno, Luis Nazareno;   García, Ileana Vanesa;   Sannazzaro, Analía Inés;   Bailleres, Matias Andres;   Ruiz, Oscar Adolfo;   Mendoza, Rodolfo Ernesto;   Estrella, Maria Julia;  
Fuente
Plant and soil 385 (1–2) : 357–371. (December 2014)
Date
2014-12
ISSN
0032-079X
1573-5036
URI
https://link.springer.com/article/10.1007/s11104-014-2237-z
http://hdl.handle.net/20.500.12123/2576
DOI
https://doi.org/10.1007/s11104-014-2237-z
Formato
pdf
Tipo de documento
artículo
Palabras Claves
Lotus Tenuis; Absorción de Sustancias Nutritivas; Nutrient Uptake; Crecimiento; Growth; Micorrizas Arbusculares; Arbuscular Mycorrhiza; Bacteria; Rhizobiaceae; Aplicación de Abonos; Fertilizer Application; Fósforo; Phosphorus; Pantoea eucalypti;
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Excepto donde se diga explicitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
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