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Almonacid, L., Fuentes, A., Ortiz, J., Garcia-Romera, I., Ocampo, J., Arriagada, C. 2015. Effect of mixing soil saprobe fungi with organic residues enhance plant responses of Solanum lycopersicum to the arbuscular mycorrhizal symbiosis. Soil Use and Management. 31, 155–164. (WOS. Impact Factor: 2.117 Q2).

G. Pereira, J.L. Campos, D. Chávez L. Anabalón, C. Arriagada. 2015. Caracterización del crecimiento miceliar del hongo ectomicorrícico Lactarius aff. deliciosus y su simbiosis con plántulas de Pinus radiata. Quebracho Vol.22(1,2):30-39. (Scielo)

Crop residue stabilization and application to agricultural and degraded soils: A review

Author Full Names: Medina, Jorge; Monreal, Carlos; Miguel Barea, Jose; Arriagada, Cesar; Borie, Fernando; Cornejo, Pablo


Agricultural activities produce vast amounts of organic residues including straw, unmarketable or culled fruit and vegetables, post-harvest or post-processing wastes, clippings and residuals from forestry or pruning operations, and animal manure. Improper disposal of these materials may produce undesirable environmental (e.g. odors or insect refuges) and health impacts. On the other hand, agricultural residues are of interest to various industries and sectors of the economy due to their energy content (i.e., for combustion), their potential use as feedstock to produce biofuels and/or fine chemicals, or as a soil amendments for polluted or degraded soils when composted. Our objective is review new biotechnologies that could be used to manage these residues for land application and remediation of contaminated and eroded soils. Bibliographic information is complemented through a comprehensive review of the physico-chemical fundamental mechanisms involved in the transformation and stabilization of organic matter by biotic and abiotic soil components. (C) 2015 Elsevier Ltd. All rights reserved.

DOI: 10.1016/j.wasman.2015.04.002

UT (Unique WOS ID): WOS:000357348500007

Effect of mixing soil saprophytic fungi with organic residues on the response of Solanum lycopersicum to arbuscular mycorrhizal fungi

Author Full Names: Almonacid, L.; Fuentes, A.; Ortiz, J.; Salas, C.; Garcia-Romera, I.; Ocampo, J.; Arriagada, C.


The effect of the dual inoculation with arbuscular mycorrhizal (AM) and saprophytic fungi and a combination of wheat straw and sewage sludge residues were studied by determining their effect on dry weight of tomato and on chemical and biochemical properties of soil. Incubation of organic residue (sewage sludge combined with wheat straw) with saprophytic fungi and plant inoculation with mycorrhizal fungi was essential to study plant growth promotion. Soil application of organic residues increased the dry weight of tomato inoculated with Rhizophagus irregularis. The greatest shoot dry mass was obtained when the organic residues were incubated with Trichoderma harzianum and applied to AM plants. However, the greatest percentage of root length colonized with AM in the presence of the organic residues was obtained with inoculation with Coriolopsis rigida. The relative chlorophyll was greatest in mycorrhizal plants regardless of the presence of either saprophytic fungus. The presence of the saprophytic fungi increased soil pH as the incubation time increased. Soil nitrogen and phosphorus contents and acid phosphatase were stimulated by the addition of organic residues, and contents of N and P. Total N and P content in soil increased when the organic residue was incubated with saprobe fungi, but this effect decreased as the incubation period of the residue with saprobe fungi increased. The same trend was observed for soil -glucosidase and fluorescein diacetate activities. The application of organic residues in the presence of AM and saprophytic fungi seems to be an interesting option as a biofertilizer to improve plant growth and biochemical parameters of soils.

DOI: 10.1111/sum.12160

UT (Unique WOS ID): WOS:000351203400017

Effect of arbuscular mycorrhizal fungi and mycoremediated dry olive residue in lead uptake in wheat plants

Author Full Names: Garcia-Sanchez, Mercedes; Andrea Silva-Castro, Gloria; Sanchez, Alvaro; Arriagada, Cesar; Garcia-Romera, Inmaculada


This study aims to evaluate the role of the extraradical mycelium of arbuscular mycorrhizal fungi in Pb transport. We also investigate how these fungi, alone or combined with the mycoremediated dry olive residue (MDOR), provide protection against Pb. We established a container system consisting of a central compartment and two lateral compartments separated by a hydrophobic membrane. The central compartment was filled with sterilized soil in which wheat plants, inoculated and non-inoculated with Funneliformis mosseae, were grown. The lateral compartments were filled with sterile, Pb-contaminated or MDOR-amended soil or combinations of both. In contrast to shoots and grains, wheat roots accumulated larger amounts of Pb with or without applications of MDOR. The extraradical mycelium (ERM) and the glomalin related protein content were significantly boosted by adding MDOR to Pb-contaminated soil samples. Wheat mot biomass was decreased as the result of Pb contamination with no increases in plant phosphorous (P) uptake. However, MDOR, when added to Pbcontaminated soil samples, only boosted the accumulation of P in roots, with P content and biomass remaining unchanged in wheat shoots and grains. Our study highlights the role of the ERM in Pb transport its accumulation in wheat mots and how the protection effect exerted by AMF seemed to rely on MDOR application by increasing the P uptake rather than Pb.

DOI: 10.1016/j.apsoil.2020.103838

UT (Unique WOS ID): WOS:000609456600020