Tree species composition influenced microbial diversity and nitrogen availability in rhizosphere soil
A greenhouse experiment was conducted to evaluate effects of monoculture and mixed planting of three tree species on microbial diversity and nitrogen (N) availability in rhizosphere and bulk soils. Six treatments with poplar, willow, and alder mono- or mixed seedlings were grown in the rhizoboxes an...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Czech Academy of Agricultural Sciences
2015-10-01
|
| Series: | Plant, Soil and Environment |
| Subjects: | |
| Online Access: | https://pse.agriculturejournals.cz/artkey/pse-201510-0002_tree-species-composition-influenced-microbial-diversity-and-nitrogen-availability-in-rhizosphere-soil.php |
| _version_ | 1828007372477431808 |
|---|---|
| author | D. Liu Y. Liu S. Fang Y. Tian |
| author_facet | D. Liu Y. Liu S. Fang Y. Tian |
| author_sort | D. Liu |
| collection | DOAJ |
| description | A greenhouse experiment was conducted to evaluate effects of monoculture and mixed planting of three tree species on microbial diversity and nitrogen (N) availability in rhizosphere and bulk soils. Six treatments with poplar, willow, and alder mono- or mixed seedlings were grown in the rhizoboxes and both rhizosphere and bulk soils were sampled and analysed after eight-month growth. Microbial diversity in rhizosphere soil was significantly higher than in bulk soils based on denatured gradient gel electrophoresis (DGGE) fingerprinting of 16S- or 18S-rRNA gene fragments of soil microbial community. Tree species composition significantly influenced microbial diversity index and nitrogen contents in the rhizosphere soil, with the highest values of genotypic richness, Shannon diversity index and inorganic nitrogen contents were observed in rhizosphere soils of poplar-alder mixture. Shannon diversity indices of bacteria and fungi in the rhizosphere soils were positively and significantly correlated with nitrogen contents. Alder addition significantly improved genotypic richness, microbial diversity index and nitrogen availability in the rhizosphere soils, suggesting that adding N-fixing alder into poplar plantations is a good option in the practice. |
| first_indexed | 2024-04-10T08:09:25Z |
| format | Article |
| id | doaj.art-33a4637d336e438787818a1c6bd4456b |
| institution | Directory Open Access Journal |
| issn | 1214-1178 1805-9368 |
| language | English |
| last_indexed | 2024-04-10T08:09:25Z |
| publishDate | 2015-10-01 |
| publisher | Czech Academy of Agricultural Sciences |
| record_format | Article |
| series | Plant, Soil and Environment |
| spelling | doaj.art-33a4637d336e438787818a1c6bd4456b2023-02-23T03:46:16ZengCzech Academy of Agricultural SciencesPlant, Soil and Environment1214-11781805-93682015-10-01611043844310.17221/94/2015-PSEpse-201510-0002Tree species composition influenced microbial diversity and nitrogen availability in rhizosphere soilD. Liu0Y. Liu1S. Fang2Y. Tian3Collaborative Innovation Center of Modern Forestry in Southern China, Nanjing Forestry University, Nanjing, P.R. ChinaCollaborative Innovation Center of Modern Forestry in Southern China, Nanjing Forestry University, Nanjing, P.R. ChinaCollaborative Innovation Center of Modern Forestry in Southern China, Nanjing Forestry University, Nanjing, P.R. ChinaCollaborative Innovation Center of Modern Forestry in Southern China, Nanjing Forestry University, Nanjing, P.R. ChinaA greenhouse experiment was conducted to evaluate effects of monoculture and mixed planting of three tree species on microbial diversity and nitrogen (N) availability in rhizosphere and bulk soils. Six treatments with poplar, willow, and alder mono- or mixed seedlings were grown in the rhizoboxes and both rhizosphere and bulk soils were sampled and analysed after eight-month growth. Microbial diversity in rhizosphere soil was significantly higher than in bulk soils based on denatured gradient gel electrophoresis (DGGE) fingerprinting of 16S- or 18S-rRNA gene fragments of soil microbial community. Tree species composition significantly influenced microbial diversity index and nitrogen contents in the rhizosphere soil, with the highest values of genotypic richness, Shannon diversity index and inorganic nitrogen contents were observed in rhizosphere soils of poplar-alder mixture. Shannon diversity indices of bacteria and fungi in the rhizosphere soils were positively and significantly correlated with nitrogen contents. Alder addition significantly improved genotypic richness, microbial diversity index and nitrogen availability in the rhizosphere soils, suggesting that adding N-fixing alder into poplar plantations is a good option in the practice.https://pse.agriculturejournals.cz/artkey/pse-201510-0002_tree-species-composition-influenced-microbial-diversity-and-nitrogen-availability-in-rhizosphere-soil.phpecosystemnutrient cyclingpopulussalixalnus |
| spellingShingle | D. Liu Y. Liu S. Fang Y. Tian Tree species composition influenced microbial diversity and nitrogen availability in rhizosphere soil Plant, Soil and Environment ecosystem nutrient cycling populus salix alnus |
| title | Tree species composition influenced microbial diversity and nitrogen availability in rhizosphere soil |
| title_full | Tree species composition influenced microbial diversity and nitrogen availability in rhizosphere soil |
| title_fullStr | Tree species composition influenced microbial diversity and nitrogen availability in rhizosphere soil |
| title_full_unstemmed | Tree species composition influenced microbial diversity and nitrogen availability in rhizosphere soil |
| title_short | Tree species composition influenced microbial diversity and nitrogen availability in rhizosphere soil |
| title_sort | tree species composition influenced microbial diversity and nitrogen availability in rhizosphere soil |
| topic | ecosystem nutrient cycling populus salix alnus |
| url | https://pse.agriculturejournals.cz/artkey/pse-201510-0002_tree-species-composition-influenced-microbial-diversity-and-nitrogen-availability-in-rhizosphere-soil.php |
| work_keys_str_mv | AT dliu treespeciescompositioninfluencedmicrobialdiversityandnitrogenavailabilityinrhizospheresoil AT yliu treespeciescompositioninfluencedmicrobialdiversityandnitrogenavailabilityinrhizospheresoil AT sfang treespeciescompositioninfluencedmicrobialdiversityandnitrogenavailabilityinrhizospheresoil AT ytian treespeciescompositioninfluencedmicrobialdiversityandnitrogenavailabilityinrhizospheresoil |