Relationships between soil physicochemical properties and nitrogen fixing, nitrifying and denitrifying under varying land-use practices in the northwest region of Argentina
The aim of this study was to evaluate the response pattern of diazotrophic microbes, denitrifiers and nitrifiers to different types of land use management, such as soybean monoculture (M) during 5 and 24 years (M5 and M24) and soybean-maize rotation (R) during 4 and 15 years (R4 and R15) in two subs...
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| Format: | Article |
| Language: | English |
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Czech Academy of Agricultural Sciences
2019-03-01
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| Series: | Soil and Water Research |
| Subjects: | |
| Online Access: | https://swr.agriculturejournals.cz/artkey/swr-201901-0001_relationships-between-soil-physicochemical-properties-and-nitrogen-fixing-nitrifying-and-denitrifying-under-va.php |
| _version_ | 1797897789576839168 |
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| author | Carolina Pérez-Brandan Annabel Meyer José M. Meriles Jorgelina Huidobro Michael Schloter Silvina Vargas-Gil |
| author_facet | Carolina Pérez-Brandan Annabel Meyer José M. Meriles Jorgelina Huidobro Michael Schloter Silvina Vargas-Gil |
| author_sort | Carolina Pérez-Brandan |
| collection | DOAJ |
| description | The aim of this study was to evaluate the response pattern of diazotrophic microbes, denitrifiers and nitrifiers to different types of land use management, such as soybean monoculture (M) during 5 and 24 years (M5 and M24) and soybean-maize rotation (R) during 4 and 15 years (R4 and R15) in two subsequent years at the time point of flowering. Soil samples from a site recently introduced into agriculture (RUA) and a pristine soil under native vegetation (NV) were used as controls. Abundances of different functional groups of microbes were assessed using the direct quantification of marker genes by quantitative real-time PCR using extracted DNA from rhizosphere samples. In addition, soil chemical and physical properties were analysed and correlated with the abundance data from the functional microbial groups under investigation. Overall, the results indicate that the abundance of nifH genes was higher under R treatments compared to M treatments. The abundance of ammonium monooxygenase genes amoA (AOA) was generally higher under rotation systems and decreased under M24. RUA evidenced a negative effect on the establishment and development of AOA communities. The influence of land use on nirS abundance was inconsistent. However, R treatments showed a high abundance of nirK genes compared to M treatments. In both growing seasons, the abundance of nosZ genes was higher under NV compared with the other treatments. Furthermore, M24 treatment was related to strongly changed chemical and physical soil properties compared with the other sites. As expected, soil samples from RUA showed the strong dynamics of measured parameters indicating the high sensitivity of soils under transition to environmental parameters. Our results also indicated that the long-term crop rotation modified the abundance of the investigated microbial groups compared to the monoculture and increased soil chemical and physical quality. Therefore, our results provide evidence for a stimulatory effect of the long-term crop rotation on the abundance of microbes involved in N transformation. |
| first_indexed | 2024-04-10T08:03:56Z |
| format | Article |
| id | doaj.art-4949799b061e43d48bf9357ea7304840 |
| institution | Directory Open Access Journal |
| issn | 1801-5395 1805-9384 |
| language | English |
| last_indexed | 2024-04-10T08:03:56Z |
| publishDate | 2019-03-01 |
| publisher | Czech Academy of Agricultural Sciences |
| record_format | Article |
| series | Soil and Water Research |
| spelling | doaj.art-4949799b061e43d48bf9357ea73048402023-02-23T03:48:41ZengCzech Academy of Agricultural SciencesSoil and Water Research1801-53951805-93842019-03-011411910.17221/192/2017-SWRswr-201901-0001Relationships between soil physicochemical properties and nitrogen fixing, nitrifying and denitrifying under varying land-use practices in the northwest region of ArgentinaCarolina Pérez-Brandan0Annabel Meyer1José M. Meriles2Jorgelina Huidobro3Michael Schloter4Silvina Vargas-Gil5Estación Experimental Agropecularia Salta, Instituto Nacional de Tecnológia Agropecuaria (INTA EEA Salta), Cerrillos, Salta, ArgentinaResearch Unit for Comparative Microbiome Analysis, German Research Center for Environmental Health (GmbH), Helmholtz Zentrum München, Neuherberg, GermanyInstituto Multidisciplinario de Biología Vegetal, Instituto de Ciencia y Tecnología de los Alimentos, Universidad de Córdoba, Córdoba, ArgentinaEstación Experimental Agropecularia Salta, Instituto Nacional de Tecnológia Agropecuaria (INTA EEA Salta), Cerrillos, Salta, ArgentinaResearch Unit for Comparative Microbiome Analysis, German Research Center for Environmental Health (GmbH), Helmholtz Zentrum München, Neuherberg, GermanyInstituto de Patología Vegetal, Centro de Investigaciones Agropecuarias, Instituto Nacional de Tecnológia Agropecuaria (IPAVE, CIAP - INTA), Córdoba, ArgentinaThe aim of this study was to evaluate the response pattern of diazotrophic microbes, denitrifiers and nitrifiers to different types of land use management, such as soybean monoculture (M) during 5 and 24 years (M5 and M24) and soybean-maize rotation (R) during 4 and 15 years (R4 and R15) in two subsequent years at the time point of flowering. Soil samples from a site recently introduced into agriculture (RUA) and a pristine soil under native vegetation (NV) were used as controls. Abundances of different functional groups of microbes were assessed using the direct quantification of marker genes by quantitative real-time PCR using extracted DNA from rhizosphere samples. In addition, soil chemical and physical properties were analysed and correlated with the abundance data from the functional microbial groups under investigation. Overall, the results indicate that the abundance of nifH genes was higher under R treatments compared to M treatments. The abundance of ammonium monooxygenase genes amoA (AOA) was generally higher under rotation systems and decreased under M24. RUA evidenced a negative effect on the establishment and development of AOA communities. The influence of land use on nirS abundance was inconsistent. However, R treatments showed a high abundance of nirK genes compared to M treatments. In both growing seasons, the abundance of nosZ genes was higher under NV compared with the other treatments. Furthermore, M24 treatment was related to strongly changed chemical and physical soil properties compared with the other sites. As expected, soil samples from RUA showed the strong dynamics of measured parameters indicating the high sensitivity of soils under transition to environmental parameters. Our results also indicated that the long-term crop rotation modified the abundance of the investigated microbial groups compared to the monoculture and increased soil chemical and physical quality. Therefore, our results provide evidence for a stimulatory effect of the long-term crop rotation on the abundance of microbes involved in N transformation.https://swr.agriculturejournals.cz/artkey/swr-201901-0001_relationships-between-soil-physicochemical-properties-and-nitrogen-fixing-nitrifying-and-denitrifying-under-va.phpagricultural managementdenitrificationnitrificationnitrogen fixationsoybean |
| spellingShingle | Carolina Pérez-Brandan Annabel Meyer José M. Meriles Jorgelina Huidobro Michael Schloter Silvina Vargas-Gil Relationships between soil physicochemical properties and nitrogen fixing, nitrifying and denitrifying under varying land-use practices in the northwest region of Argentina Soil and Water Research agricultural management denitrification nitrification nitrogen fixation soybean |
| title | Relationships between soil physicochemical properties and nitrogen fixing, nitrifying and denitrifying under varying land-use practices in the northwest region of Argentina |
| title_full | Relationships between soil physicochemical properties and nitrogen fixing, nitrifying and denitrifying under varying land-use practices in the northwest region of Argentina |
| title_fullStr | Relationships between soil physicochemical properties and nitrogen fixing, nitrifying and denitrifying under varying land-use practices in the northwest region of Argentina |
| title_full_unstemmed | Relationships between soil physicochemical properties and nitrogen fixing, nitrifying and denitrifying under varying land-use practices in the northwest region of Argentina |
| title_short | Relationships between soil physicochemical properties and nitrogen fixing, nitrifying and denitrifying under varying land-use practices in the northwest region of Argentina |
| title_sort | relationships between soil physicochemical properties and nitrogen fixing nitrifying and denitrifying under varying land use practices in the northwest region of argentina |
| topic | agricultural management denitrification nitrification nitrogen fixation soybean |
| url | https://swr.agriculturejournals.cz/artkey/swr-201901-0001_relationships-between-soil-physicochemical-properties-and-nitrogen-fixing-nitrifying-and-denitrifying-under-va.php |
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