Diesel Impacts on Functional Bacterial Groups and Collembolans During Phytoremediation in a Mesocosm System
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Diesel Impacts on Functional Bacterial Groups and Collembolans During Phytoremediation in a Mesocosm System Ana Carolina Guerrero-Chávez & Alejandro Alarcón & Ronald Ferrera-Cerrato & Irma Díaz-Aguilar & Ma. Remedios Mendoza-López & Bibiana Rios-Galicia & Ramón Ignacio Arteaga-Garibay & John Larsen
Received: 6 August 2019 / Accepted: 1 September 2020 # Springer Nature Switzerland AG 2020
Abstract Phytoremediation of contaminated soils relies on the ability of plants to stimulate microbial rhizosphere diversity, by releasing root exudates. This work assessed the impact of diesel contamination on soil
populations of culturable bacterial groups (fast growing, N2-fixing, phosphate (P) solubilizing, and lipolytic bacteria), and collembolans under mesocosm conditions with and without the influence Medicago sativa. We
Highlights • Diesel at 10,000 mg kg−1 stimulated functional bacterial groups • Collembolan populations are affected by either diesel or mechanical soil disturbance • Plants stimulated the recovery of collembolan regardless diesel contamination • Medicago sativa repressed hydrocarbon degradation at 20,000 mg diesel kg−1 Electronic supplementary material The online version of this article (https://doi.org/10.1007/s11270-020-04854-x) contains supplementary material, which is available to authorized users. A. Guerrero-Chávez : A. Alarcón (*) : R. Ferrera-Cerrato : I. Díaz-Aguilar Posgrado de Edafología, Colegio de Postgraduados, Carretera México-Texcoco Km. 36.5, Montecillo, 56230 Texcoco, Estado de México, Mexico e-mail: [email protected]
B. Rios-Galicia : R. I. Arteaga-Garibay Laboratorio de Recursos Genéticos Microbianos, Centro Nacional de Recursos Microbianos, Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias (CNRG-INIFAP), Boulevard de la Biodiversidad No. 400 Col. Rancho las Cruces CP, 47600 Tepatitlán de Morelos, Jalisco, Mexico
A. Guerrero-Chávez e-mail: [email protected]
B. Rios-Galicia e-mail: [email protected]
R. Ferrera-Cerrato e-mail: [email protected]
R. I. Arteaga-Garibay e-mail: [email protected]
I. Díaz-Aguilar e-mail: [email protected]
J. Larsen Instituto de Investigaciones en Ecosistemas y Sustentabilidad, Universidad Nacional Autónoma de México, Antigua Carretera a Pátzcuaro 8701. Col. Ex Hacienda de San José de la Huerta, 58190 Morelia, Michoacán, Mexico e-mail: [email protected]
M. Mendoza-López Unidad de Servicios de Apoyo en Resolución Analítica (SARA), Universidad Veracruzana, Luis Castelazo Ayala s/n, Col. Industrial Animas, Xalapa, 91190 Veracruz, Mexico e-mail: [email protected]
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set up six treatments sampled initially within 24 h and examined at 4, 8, and 12 months. Bacterial groups were isolated and identified with 16S rRNA sequencing, while collembolans were classified using taxonomic keys. The populations of P-solubilizing and fastgrowing bacteria were stimulated after 4 months in the polluted treatments in absence of M. sativa. On the M. sativa treatments, P-solubilizing and lipolytic bacteria
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