SciELO - Scientific Electronic Library Online

 
vol.17 issue4Long-term phosphorus fertilization effects on arbuscular mycorrhizal fungal diversity in Uruguayan grassesEffectiveness of biofertilizer enriched in N by Beijerinckia indica on sugarcane grown on an Ultisol and the interactive effects between biofertilizer and sugarcane filter cake author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Journal

Article

Indicators

Related links

  • On index processCited by Google
  • Have no similar articlesSimilars in SciELO
  • On index processSimilars in Google

Share


Journal of soil science and plant nutrition

On-line version ISSN 0718-9516

Abstract

MESTRE, María Cecilia; PASTORINO, Mario J; APARICIO, Alejandro G  and  FONTENLA, Sonia B. Natives helping foreigners?: The effect of inoculation of poplar with patagonian beneficial microorganisms. J. Soil Sci. Plant Nutr. [online]. 2017, vol.17, n.4, pp.1028-1039. ISSN 0718-9516.  http://dx.doi.org/10.4067/S0718-95162017000400014.

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.

Keywords : mycorrhizae symbiosis; soil yeasts; endophytic bacteria.

        · text in English     · English ( pdf )

 

Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License