Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
The combined effects of Pseudomonas fluorescens and Tuber melanosporum on the quality of Pinus halepensis seedlings
Year:2012
Research Areas
  • Natural environment,
  • Forest
Information
Abstract
The ecological, economic and social values of the ectomycorrhizal fungi of the black truffle found in the rural Mediterranean are well known. The inoculation of Pinus halepensis seedlings with mycorrhizal fungi and rhizobacteria can improve the morphology and physiology of the seedlings and benefit the regeneration of arid regions and the reintroduction of inocula of mycorrhizal fungi into these areas. Some rhizobacteria can improve the establishment and functioning of ectomycorrhizal symbiosis. In this study, seedlings of P. halepensis were inoculated with the mycorrhizal fungus Tuber melanosporum and the rhizobacteria Pseudomonas fluorescens CECT 844 under nonlimiting greenhouse conditions. Five months after inoculation, we analysed the growth, water parameters (osmotic potential at saturation, osmotic potential at turgor loss and modulus of elasticity), concentrations of mycorrhizal colonies, nutrient concentration and nutrient contents (N, P, K, Ca, Mg and Fe) in roots and aerial parts of the seedlings. Subsequently, tests were performed to estimate the root growth potentials. None of the treatments changed the water parameters or growth potentials of the roots. The inoculations improved the growth and nutrient uptake of the seedlings, although the combination of P. fluorescens CECT 844 and T. melanosporum did not generally lead to a significant improvement over the positive effects of a simple inoculation of T. melanosporum; however, the addition of P. fluorescens CECT 844 did double the rate of the mycorrhization of T. melanosporum. These results may be promising for enhancing the cultivation of truffles
International
Si
JCR
Si
Title
Mycorrhiza
ISBN
0940-6360
Impact factor JCR
2,63
Impact info
Volume
22
Journal number
From page
429
To page
436
Month
SIN MES
Ranking
Participants
  • Autor: Jose Alfonso Dominguez Nuñez (UPM)
  • Autor: A. Martín
  • Autor: A. Anriquez (Universidad Santiago del Estero (Argentina))
  • Autor: A. Albanesi (Universidad Santiago del Estero (Argentina))
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Economía y Sostenibilidad del Medio Natural
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