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Título: | Implications of mycoremediated dry olive residue application and arbuscular mycorrhizal fungi inoculation on the microbial community composition and functionality in a metal-polluted soil |
Autor: | García-Sánchez, M. CSIC; Cajthaml, T.; Filipová, A.; Tlustoš, P.; Száková, J.; García-Romera, Inmaculada CSIC | Palabras clave: | Metal-pollution Microbial activities Phospholipid fatty acids (PLFAs) Soil restoration Funneliformis mosseae Mycoremediated dry olive residue (MDOR) |
Fecha de publicación: | 2019 | Editor: | Elsevier | Citación: | Journal of Environmental Management 247: 756- 765 (2019) | Resumen: | Metal-polluted soils represent hostile environments affecting the composition and functions of soil microbial communities. This study evaluated the implication of combining the mycoremediated dry olive residue (MDOR) amendment application with the inoculation of the arbuscular mycorrhizal fungi (AMF) Funneliformis mosseae in restoring the quality, composition, and functionality of soil microbial communities. To achieve this aim, a mesocosms experiment was set up that included three variations: i) with and without application of Penicillium chrysogenum-10-transformed MDOR (MDOR_Pc), and Chondrosterum purpureum-transformed MDOR (MDOR_Cp) amendments; ii) with and without F. mosseae inoculation; and iii) 30-day and 60-day soil treatment time. As a result of this combined treatment, changes in the soil labile organic C and N fractions were observed throughout the experiment. Increases in the abundance of phospholipid fatty acids (PLFAs) for bacteria, actinobacteria, and Gram− and Gram+ bacteria were also recorded at the end of the experiment. The addition of MDOR amendments boosted fungal and AM fungi communities. AM fungi root and soil colonization was also enhanced as the result of improvement nutrient turnover and spatial conditions caused by adding MDOR in combination with an inoculation of F. mosseae. The composition and functionality of microbial communities seemed to be an important ecological attribute indicating an apparently fully functional restoration of this metal-polluted soil and therefore suggesting the suitability of the combined MDOR and AM fungus treatment as a reclamation practice. | Versión del editor: | https://www.sciencedirect.com/science/article/pii/S0301479719307297?via%3Dihub | URI: | http://hdl.handle.net/10261/193684 | DOI: | 10.1016/j.jenvman.2019.05.101 | Identificadores: | doi: 10.1016/j.jenvman.2019.05.101 issn: 1095-8630 |
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