Organic Amendments and Sampling Date Influences on Soil Bacterial Community Composition and Their Predictive Functional Profiles in an Olive Grove Ecosystem

A collapse of soil microbial diversity, mainly due to chemical inputs, has been reported to lead to the degradation of conventional agroecosystems. The use of compost from urban and agricultural waste management, in order to achieve a net gain in the storage of C, is an adequate management of agricu...

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Autores principales:	Laura L. de Sosa, Beatriz Moreno, Rafael Alcalá Herrera, Marco Panettieri, Engracia Madejón, Emilio Benítez
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	bacterial diversity bacterial functionality metagenomics olive agroecosystem organic amendments soil management Agriculture (General) S1-972
Acceso en línea:	https://doaj.org/article/6beb13b25cac46929e2e958683a31ceb
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spelling	oai:doaj.org-article:6beb13b25cac46929e2e958683a31ceb2021-11-25T16:02:18ZOrganic Amendments and Sampling Date Influences on Soil Bacterial Community Composition and Their Predictive Functional Profiles in an Olive Grove Ecosystem10.3390/agriculture111111782077-0472https://doaj.org/article/6beb13b25cac46929e2e958683a31ceb2021-11-01T00:00:00Zhttps://www.mdpi.com/2077-0472/11/11/1178https://doaj.org/toc/2077-0472A collapse of soil microbial diversity, mainly due to chemical inputs, has been reported to lead to the degradation of conventional agroecosystems. The use of compost from urban and agricultural waste management, in order to achieve a net gain in the storage of C, is an adequate management of agricultural soils, especially in rainfed conditions. However, the great variability of composts of different maturity and origins and of the soils to which they are added limits the ability to predict the impact of these amendments on the dynamics of soil microbial communities. This study was designed to gain insights on the effect of exogenous organic matter management on the soil bacterial community and its contribution to key functions relevant to agricultural soils. To achieve this, two different types of compost (alperujo or biosolids composts) at two doses were used as soil amendments twice for 3 years in a rainfed olive grove ecosystem. A metagenomic analysis was carried out to assess the abundance and composition of the soil bacterial communities and predicted functions. We only detected a minor and transitory effect on the bacterial abundance of the soil, the structure of the community and the potential functions, less related to the dose or the type of compost than to seasonal variations. Although the result suggests that the soil bacteria were highly resilient, promoting community stability and functional resilience after the addition of the two composts, more efforts are necessary to assess not only the resulting soil microbial community after organic fertilization but the intrinsic microbial community within the organic amendment that acts as an inoculum, and to what extent the changes in its dose could lead to the functionality of the soil.Laura L. de SosaBeatriz MorenoRafael Alcalá HerreraMarco PanettieriEngracia MadejónEmilio BenítezMDPI AGarticlebacterial diversitybacterial functionalitymetagenomicsolive agroecosystemorganic amendmentssoil managementAgriculture (General)S1-972ENAgriculture, Vol 11, Iss 1178, p 1178 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	bacterial diversity bacterial functionality metagenomics olive agroecosystem organic amendments soil management Agriculture (General) S1-972
spellingShingle	bacterial diversity bacterial functionality metagenomics olive agroecosystem organic amendments soil management Agriculture (General) S1-972 Laura L. de Sosa Beatriz Moreno Rafael Alcalá Herrera Marco Panettieri Engracia Madejón Emilio Benítez Organic Amendments and Sampling Date Influences on Soil Bacterial Community Composition and Their Predictive Functional Profiles in an Olive Grove Ecosystem
description	A collapse of soil microbial diversity, mainly due to chemical inputs, has been reported to lead to the degradation of conventional agroecosystems. The use of compost from urban and agricultural waste management, in order to achieve a net gain in the storage of C, is an adequate management of agricultural soils, especially in rainfed conditions. However, the great variability of composts of different maturity and origins and of the soils to which they are added limits the ability to predict the impact of these amendments on the dynamics of soil microbial communities. This study was designed to gain insights on the effect of exogenous organic matter management on the soil bacterial community and its contribution to key functions relevant to agricultural soils. To achieve this, two different types of compost (alperujo or biosolids composts) at two doses were used as soil amendments twice for 3 years in a rainfed olive grove ecosystem. A metagenomic analysis was carried out to assess the abundance and composition of the soil bacterial communities and predicted functions. We only detected a minor and transitory effect on the bacterial abundance of the soil, the structure of the community and the potential functions, less related to the dose or the type of compost than to seasonal variations. Although the result suggests that the soil bacteria were highly resilient, promoting community stability and functional resilience after the addition of the two composts, more efforts are necessary to assess not only the resulting soil microbial community after organic fertilization but the intrinsic microbial community within the organic amendment that acts as an inoculum, and to what extent the changes in its dose could lead to the functionality of the soil.
format	article
author	Laura L. de Sosa Beatriz Moreno Rafael Alcalá Herrera Marco Panettieri Engracia Madejón Emilio Benítez
author_facet	Laura L. de Sosa Beatriz Moreno Rafael Alcalá Herrera Marco Panettieri Engracia Madejón Emilio Benítez
author_sort	Laura L. de Sosa
title	Organic Amendments and Sampling Date Influences on Soil Bacterial Community Composition and Their Predictive Functional Profiles in an Olive Grove Ecosystem
title_short	Organic Amendments and Sampling Date Influences on Soil Bacterial Community Composition and Their Predictive Functional Profiles in an Olive Grove Ecosystem
title_full	Organic Amendments and Sampling Date Influences on Soil Bacterial Community Composition and Their Predictive Functional Profiles in an Olive Grove Ecosystem
title_fullStr	Organic Amendments and Sampling Date Influences on Soil Bacterial Community Composition and Their Predictive Functional Profiles in an Olive Grove Ecosystem
title_full_unstemmed	Organic Amendments and Sampling Date Influences on Soil Bacterial Community Composition and Their Predictive Functional Profiles in an Olive Grove Ecosystem
title_sort	organic amendments and sampling date influences on soil bacterial community composition and their predictive functional profiles in an olive grove ecosystem
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/6beb13b25cac46929e2e958683a31ceb
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Organic Amendments and Sampling Date Influences on Soil Bacterial Community Composition and Their Predictive Functional Profiles in an Olive Grove Ecosystem

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