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Natives helping foreigners? The effect of inoculation of poplar with patagonian beneficial microorganisms

Abstract
Inoculation with microorganisms represents an opportunity to enhance tree production, directly affecting plant growth or survival at planting. The aim of the present study was to evaluate the effect of mixed inoculation with native mycorrhizae, two yeasts and one endophytic bacterium, on the growth of two poplar clones commonly used in Patagonia, Argentina. Yeasts and bacteria were selected base on their ability to produce IAA and siderophores, as well as [ver mas...]
Inoculation with microorganisms represents an opportunity to enhance tree production, directly affecting plant growth or survival at planting. The aim of the present study was to evaluate the effect of mixed inoculation with native mycorrhizae, two yeasts and one endophytic bacterium, on the growth of two poplar clones commonly used in Patagonia, Argentina. Yeasts and bacteria were selected base on their ability to produce IAA and siderophores, as well as P solubilization in-vitro. A greenhouse trial was performed using hardwood cuttings of Populus nigra ‘Italica’ and Populus trichocarpa ‘SP1456’. Only yeasts modified growth traits, in a host-related response: Tausonia pullulans reduced the root/shoot ratio in P. nigra, and Candida saitoana and increased shoot dry biomass in P. trichocarpa. All plants presented arbuscular mycorrhizal colonization but ectomycorrhizae were absent. Two types of arbuscular mycorrhizal colonization were observed, one of them similar to Glomus tenue. We found a tendency for a higher percentage of arbuscular mycorrhizal colonization when plants were inoculated with T. pullulans. The used of native yeast along with mycorrhizal inocula appears to be a promising tool to improve poplar forestry. [Cerrar]
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Author
Mestre, María Cecilia;   Pastorino, Mario Juan;   Aparicio, Alejandro Gabriel;   Fontenla, Sonia Beatriz;  
Fuente
Journal of Soil Science and Plant Nutrition 17 (4) : 1028-1039 (2017)
Date
2017-12
ISSN
0718-9516
URI
http://hdl.handle.net/20.500.12123/2009
https://scielo.conicyt.cl/pdf/jsspn/v17n4/art14.pdf
DOI
http://dx.doi.org/10.4067/S0718-95162017000400014
Formato
pdf
Tipo de documento
article
Palabras Claves
Populus; Microorganismos; Microorganisms; Inoculación; Inoculation; Alamo;
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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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