Soil-Borne Microbial Functional Structure across Different Land Uses
Land use change alters the structure and composition of microbial communities. However, the links between environmental factors and microbial functions are not well understood. Here we interrogated the functional structure of soil microbial communities across different land uses. In a multivariate r...
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1155/2014/216071 |
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| author | Eiko E. Kuramae Jizhong Z. Zhou George A. Kowalchuk Johannes A. van Veen |
| author_facet | Eiko E. Kuramae Jizhong Z. Zhou George A. Kowalchuk Johannes A. van Veen |
| author_sort | Eiko E. Kuramae |
| collection | DOAJ |
| description | Land use change alters the structure and composition of microbial communities. However, the links between environmental factors and microbial functions are not well understood. Here we interrogated the functional structure of soil microbial communities across different land uses. In a multivariate regression tree analysis of soil physicochemical properties and genes detected by functional microarrays, the main factor that explained the different microbial community functional structures was C : N ratio. C : N ratio showed a significant positive correlation with clay and soil pH. Fields with low C : N ratio had an overrepresentation of genes for carbon degradation, carbon fixation, metal reductase, and organic remediation categories, while fields with high C : N ratio had an overrepresentation of genes encoding dissimilatory sulfate reductase, methane oxidation, nitrification, and nitrogen fixation. The most abundant genes related to carbon degradation comprised bacterial and fungal cellulases; bacterial and fungal chitinases; fungal laccases; and bacterial, fungal, and oomycete polygalacturonases. The high number of genes related to organic remediation was probably driven by high phosphate content, while the high number of genes for nitrification was probably explained by high total nitrogen content. The functional gene diversity found in different soils did not group the sites accordingly to land management. Rather, the soil factors, C : N ratio, phosphate, and total N, were the main factors driving the differences in functional genes across the fields examined. |
| format | Article |
| id | doaj-art-1ce7b44e47c344e5ba8b58ab0ccb3cda |
| institution | Kabale University |
| issn | 2356-6140 1537-744X |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-1ce7b44e47c344e5ba8b58ab0ccb3cda2025-02-03T05:43:40ZengWileyThe Scientific World Journal2356-61401537-744X2014-01-01201410.1155/2014/216071216071Soil-Borne Microbial Functional Structure across Different Land UsesEiko E. Kuramae0Jizhong Z. Zhou1George A. Kowalchuk2Johannes A. van Veen3Department of Microbial Ecology, Netherlands Institute of Ecology (NIOO-KNAW), 6708 PB Wageningen, The NetherlandsInstitute for Environmental Genomics, University of Oklahoma, Norman, OK 73019, USADepartment of Biology, Utrecht University, 3512 JE Utrecht, The NetherlandsDepartment of Microbial Ecology, Netherlands Institute of Ecology (NIOO-KNAW), 6708 PB Wageningen, The NetherlandsLand use change alters the structure and composition of microbial communities. However, the links between environmental factors and microbial functions are not well understood. Here we interrogated the functional structure of soil microbial communities across different land uses. In a multivariate regression tree analysis of soil physicochemical properties and genes detected by functional microarrays, the main factor that explained the different microbial community functional structures was C : N ratio. C : N ratio showed a significant positive correlation with clay and soil pH. Fields with low C : N ratio had an overrepresentation of genes for carbon degradation, carbon fixation, metal reductase, and organic remediation categories, while fields with high C : N ratio had an overrepresentation of genes encoding dissimilatory sulfate reductase, methane oxidation, nitrification, and nitrogen fixation. The most abundant genes related to carbon degradation comprised bacterial and fungal cellulases; bacterial and fungal chitinases; fungal laccases; and bacterial, fungal, and oomycete polygalacturonases. The high number of genes related to organic remediation was probably driven by high phosphate content, while the high number of genes for nitrification was probably explained by high total nitrogen content. The functional gene diversity found in different soils did not group the sites accordingly to land management. Rather, the soil factors, C : N ratio, phosphate, and total N, were the main factors driving the differences in functional genes across the fields examined.http://dx.doi.org/10.1155/2014/216071 |
| spellingShingle | Eiko E. Kuramae Jizhong Z. Zhou George A. Kowalchuk Johannes A. van Veen Soil-Borne Microbial Functional Structure across Different Land Uses The Scientific World Journal |
| title | Soil-Borne Microbial Functional Structure across Different Land Uses |
| title_full | Soil-Borne Microbial Functional Structure across Different Land Uses |
| title_fullStr | Soil-Borne Microbial Functional Structure across Different Land Uses |
| title_full_unstemmed | Soil-Borne Microbial Functional Structure across Different Land Uses |
| title_short | Soil-Borne Microbial Functional Structure across Different Land Uses |
| title_sort | soil borne microbial functional structure across different land uses |
| url | http://dx.doi.org/10.1155/2014/216071 |
| work_keys_str_mv | AT eikoekuramae soilbornemicrobialfunctionalstructureacrossdifferentlanduses AT jizhongzzhou soilbornemicrobialfunctionalstructureacrossdifferentlanduses AT georgeakowalchuk soilbornemicrobialfunctionalstructureacrossdifferentlanduses AT johannesavanveen soilbornemicrobialfunctionalstructureacrossdifferentlanduses |