Combined Use of a Bacterial Consortium and Early-Colonizing Plants as a Treatment for Soil Recovery after Fire: A Model Based on Los Guájares (Granada, Spain) Wildfire

During 2022, intense heat waves, together with particularly extreme dry conditions, created a propitious scenario for wildfires, resulting in the area of vegetation consumed in Europe doubling. Mediterranean countries have been particularly affected, reaching 293,155 hectares in Spain, the worst dat...

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Prif Awduron: Marla Niza Costa, Tatiana Gil, Raquel Teixeira, Ana Sofía Rodrígues dos Santos, Inês Rebelo Romão, Cristina Sequero López, Juan Ignacio Vílchez
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Cyhoeddwyd: MDPI AG 2023-08-01
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Mynediad Ar-lein:https://www.mdpi.com/2079-7737/12/8/1093
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author Marla Niza Costa
Tatiana Gil
Raquel Teixeira
Ana Sofía Rodrígues dos Santos
Inês Rebelo Romão
Cristina Sequero López
Juan Ignacio Vílchez
author_facet Marla Niza Costa
Tatiana Gil
Raquel Teixeira
Ana Sofía Rodrígues dos Santos
Inês Rebelo Romão
Cristina Sequero López
Juan Ignacio Vílchez
author_sort Marla Niza Costa
collection DOAJ
description During 2022, intense heat waves, together with particularly extreme dry conditions, created a propitious scenario for wildfires, resulting in the area of vegetation consumed in Europe doubling. Mediterranean countries have been particularly affected, reaching 293,155 hectares in Spain, the worst data in the last 15 years. The effects on the vegetation and the soil are devastating, so knowing the recovery factors is essential for after-fire management. Resilient microorganisms play a fundamental role in rapid nutrient recycling, soil structure, and plant colonization in fire-affected soils. In this present work, we have studied emergent microbial communities in the case of the Los Guájares (Granada, Spain) fire, one of the most extensive of the year, to evaluate their role in the recovery of soil and vegetation cover. We aim to discern which are the main actors in order to formulate a new treatment that helps in the ecosystem recovery. Thus, we have found the relevant loss in phosphorous and potassium solubilizers, as well as siderophores or biofilm producers. Here, we decided to use the strains <i>Pseudomonas koreensis</i> AC, <i>Peribacillus frigoritolerans</i> CB, <i>Pseudomonas fluorescens</i> DC, <i>Paenibacillus lautus</i> C, <i>Bacillus toyonensis</i> CD, and <i>Paenarthrobacter nitroguajacolicus</i> AI as a consortium, as they showed most of the capacities required in a regenerative treatment. On the other hand, the microcosm test showed an enhanced pattern of germination of the emerging model plant, <i>Bituminaria bituminosa</i>, as well as a more aggregated structure for soil. This new approach can create a relevant approach in order to recover fire-affected soils in the future.
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spelling doaj.art-6da4022a911540df8b51c64a3d35e2fb2023-12-01T01:38:50ZengMDPI AGBiology2079-77372023-08-01128109310.3390/biology12081093Combined Use of a Bacterial Consortium and Early-Colonizing Plants as a Treatment for Soil Recovery after Fire: A Model Based on Los Guájares (Granada, Spain) WildfireMarla Niza Costa0Tatiana Gil1Raquel Teixeira2Ana Sofía Rodrígues dos Santos3Inês Rebelo Romão4Cristina Sequero López5Juan Ignacio Vílchez6Instituto de Tecnologia Química e Biológica (ITQB)-NOVA, iPlantMicro Lab, 2780-157 Oeiras, PortugalInstituto de Tecnologia Química e Biológica (ITQB)-NOVA, iPlantMicro Lab, 2780-157 Oeiras, PortugalInstituto de Tecnologia Química e Biológica (ITQB)-NOVA, iPlantMicro Lab, 2780-157 Oeiras, PortugalInstituto de Tecnologia Química e Biológica (ITQB)-NOVA, iPlantMicro Lab, 2780-157 Oeiras, PortugalInstituto de Tecnologia Química e Biológica (ITQB)-NOVA, iPlantMicro Lab, 2780-157 Oeiras, PortugalGeoBioTec, Department of Earth Sciences, NOVA School of Sciences and Technology, Universidade NOVA de Lisboa, Campus de Caparica, 2829-516 Caparica, PortugalInstituto de Tecnologia Química e Biológica (ITQB)-NOVA, iPlantMicro Lab, 2780-157 Oeiras, PortugalDuring 2022, intense heat waves, together with particularly extreme dry conditions, created a propitious scenario for wildfires, resulting in the area of vegetation consumed in Europe doubling. Mediterranean countries have been particularly affected, reaching 293,155 hectares in Spain, the worst data in the last 15 years. The effects on the vegetation and the soil are devastating, so knowing the recovery factors is essential for after-fire management. Resilient microorganisms play a fundamental role in rapid nutrient recycling, soil structure, and plant colonization in fire-affected soils. In this present work, we have studied emergent microbial communities in the case of the Los Guájares (Granada, Spain) fire, one of the most extensive of the year, to evaluate their role in the recovery of soil and vegetation cover. We aim to discern which are the main actors in order to formulate a new treatment that helps in the ecosystem recovery. Thus, we have found the relevant loss in phosphorous and potassium solubilizers, as well as siderophores or biofilm producers. Here, we decided to use the strains <i>Pseudomonas koreensis</i> AC, <i>Peribacillus frigoritolerans</i> CB, <i>Pseudomonas fluorescens</i> DC, <i>Paenibacillus lautus</i> C, <i>Bacillus toyonensis</i> CD, and <i>Paenarthrobacter nitroguajacolicus</i> AI as a consortium, as they showed most of the capacities required in a regenerative treatment. On the other hand, the microcosm test showed an enhanced pattern of germination of the emerging model plant, <i>Bituminaria bituminosa</i>, as well as a more aggregated structure for soil. This new approach can create a relevant approach in order to recover fire-affected soils in the future.https://www.mdpi.com/2079-7737/12/8/1093fired soilmicrobial communitiesemerging colonizersvegetable coverture symbiosismicrobial nutrient cycling
spellingShingle Marla Niza Costa
Tatiana Gil
Raquel Teixeira
Ana Sofía Rodrígues dos Santos
Inês Rebelo Romão
Cristina Sequero López
Juan Ignacio Vílchez
Combined Use of a Bacterial Consortium and Early-Colonizing Plants as a Treatment for Soil Recovery after Fire: A Model Based on Los Guájares (Granada, Spain) Wildfire
Biology
fired soil
microbial communities
emerging colonizers
vegetable coverture symbiosis
microbial nutrient cycling
title Combined Use of a Bacterial Consortium and Early-Colonizing Plants as a Treatment for Soil Recovery after Fire: A Model Based on Los Guájares (Granada, Spain) Wildfire
title_full Combined Use of a Bacterial Consortium and Early-Colonizing Plants as a Treatment for Soil Recovery after Fire: A Model Based on Los Guájares (Granada, Spain) Wildfire
title_fullStr Combined Use of a Bacterial Consortium and Early-Colonizing Plants as a Treatment for Soil Recovery after Fire: A Model Based on Los Guájares (Granada, Spain) Wildfire
title_full_unstemmed Combined Use of a Bacterial Consortium and Early-Colonizing Plants as a Treatment for Soil Recovery after Fire: A Model Based on Los Guájares (Granada, Spain) Wildfire
title_short Combined Use of a Bacterial Consortium and Early-Colonizing Plants as a Treatment for Soil Recovery after Fire: A Model Based on Los Guájares (Granada, Spain) Wildfire
title_sort combined use of a bacterial consortium and early colonizing plants as a treatment for soil recovery after fire a model based on los guajares granada spain wildfire
topic fired soil
microbial communities
emerging colonizers
vegetable coverture symbiosis
microbial nutrient cycling
url https://www.mdpi.com/2079-7737/12/8/1093
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