Effect of Nitrogen Addition on Selection of Germination Trait in an Alpine Meadow on the Tibet Plateau
Seed germination requirements may determine the kinds of habitat in which plants can survive. We tested the hypothesis that nitrogen (N) addition can change seed germination trait-environmental filter interactions and ultimately redistribute seed germination traits in alpine meadows. We determined t...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2021-05-01
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| Series: | Frontiers in Plant Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fpls.2021.634850/full |
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| author | Kun Liu Yang Liu Zhilong Zhang Shiting Zhang Carol C. Baskin Carol C. Baskin Jerry M. Baskin Ting Liang Haiyan Bu Shuxia Li Tingting Zhang Xianliang Cui Sa Xiao |
| author_facet | Kun Liu Yang Liu Zhilong Zhang Shiting Zhang Carol C. Baskin Carol C. Baskin Jerry M. Baskin Ting Liang Haiyan Bu Shuxia Li Tingting Zhang Xianliang Cui Sa Xiao |
| author_sort | Kun Liu |
| collection | DOAJ |
| description | Seed germination requirements may determine the kinds of habitat in which plants can survive. We tested the hypothesis that nitrogen (N) addition can change seed germination trait-environmental filter interactions and ultimately redistribute seed germination traits in alpine meadows. We determined the role of N addition on germination trait selection in an alpine meadow after N addition by combining a 3-year N addition experiment in an alpine meadow and laboratory germination experiments. At the species level, germination percentage, germination rate (speed) and breadth of temperature niche for germination (BTN) were positively related to survival of a species in the fertilized community. In addition, community-weighted means of germination percentage, germination rate, germination response to alternating temperature and BTN increased. However, germination response to wet-cold storage (cold stratification) and functional richness of germination traits was lower in alpine meadows with high-nitrogen addition than in those with no, low and medium N addition. Thus, N addition had a significant influence on environmental filter-germination trait interactions and generated a different set of germination traits in the alpine meadow. Further, the effect of N addition on germination trait selection by environmental filters was amount-dependent. Low and medium levels of N addition had less effect on redistribution of germination traits than the high level. |
| first_indexed | 2024-12-18T20:54:57Z |
| format | Article |
| id | doaj.art-32cf44de33484089a25a7d8fbbcff6a6 |
| institution | Directory Open Access Journal |
| issn | 1664-462X |
| language | English |
| last_indexed | 2024-12-18T20:54:57Z |
| publishDate | 2021-05-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Plant Science |
| spelling | doaj.art-32cf44de33484089a25a7d8fbbcff6a62022-12-21T20:53:19ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2021-05-011210.3389/fpls.2021.634850634850Effect of Nitrogen Addition on Selection of Germination Trait in an Alpine Meadow on the Tibet PlateauKun Liu0Yang Liu1Zhilong Zhang2Shiting Zhang3Carol C. Baskin4Carol C. Baskin5Jerry M. Baskin6Ting Liang7Haiyan Bu8Shuxia Li9Tingting Zhang10Xianliang Cui11Sa Xiao12State Key Laboratory of Grassland and Agro-Ecosystems, School of Life Sciences, Lanzhou University, Lanzhou, ChinaState Key Laboratory of Grassland and Agro-Ecosystems, School of Life Sciences, Lanzhou University, Lanzhou, ChinaDepartment of Chemistry and Life Science, Gansu Normal College for Nationalities, Hezuo, ChinaState Key Laboratory of Grassland and Agro-Ecosystems, School of Life Sciences, Lanzhou University, Lanzhou, ChinaDepartment of Biology, University of Kentucky, Lexington, KY, United StatesDepartment of Plant and Soil Sciences, University of Kentucky, Lexington, KY, United StatesDepartment of Biology, University of Kentucky, Lexington, KY, United StatesState Key Laboratory of Grassland and Agro-Ecosystems, School of Life Sciences, Lanzhou University, Lanzhou, ChinaState Key Laboratory of Grassland and Agro-Ecosystems, School of Life Sciences, Lanzhou University, Lanzhou, ChinaState Key Laboratory of Grassland and Agro-Ecosystems, School of Life Sciences, Lanzhou University, Lanzhou, ChinaState Key Laboratory of Grassland and Agro-Ecosystems, School of Life Sciences, Lanzhou University, Lanzhou, ChinaSchool of Biological and Chemical Science, Puer University, Puer, ChinaState Key Laboratory of Grassland and Agro-Ecosystems, School of Life Sciences, Lanzhou University, Lanzhou, ChinaSeed germination requirements may determine the kinds of habitat in which plants can survive. We tested the hypothesis that nitrogen (N) addition can change seed germination trait-environmental filter interactions and ultimately redistribute seed germination traits in alpine meadows. We determined the role of N addition on germination trait selection in an alpine meadow after N addition by combining a 3-year N addition experiment in an alpine meadow and laboratory germination experiments. At the species level, germination percentage, germination rate (speed) and breadth of temperature niche for germination (BTN) were positively related to survival of a species in the fertilized community. In addition, community-weighted means of germination percentage, germination rate, germination response to alternating temperature and BTN increased. However, germination response to wet-cold storage (cold stratification) and functional richness of germination traits was lower in alpine meadows with high-nitrogen addition than in those with no, low and medium N addition. Thus, N addition had a significant influence on environmental filter-germination trait interactions and generated a different set of germination traits in the alpine meadow. Further, the effect of N addition on germination trait selection by environmental filters was amount-dependent. Low and medium levels of N addition had less effect on redistribution of germination traits than the high level.https://www.frontiersin.org/articles/10.3389/fpls.2021.634850/fullalpine meadowgermination traitsnitrogen additionspecies diversityTibet Plateau |
| spellingShingle | Kun Liu Yang Liu Zhilong Zhang Shiting Zhang Carol C. Baskin Carol C. Baskin Jerry M. Baskin Ting Liang Haiyan Bu Shuxia Li Tingting Zhang Xianliang Cui Sa Xiao Effect of Nitrogen Addition on Selection of Germination Trait in an Alpine Meadow on the Tibet Plateau Frontiers in Plant Science alpine meadow germination traits nitrogen addition species diversity Tibet Plateau |
| title | Effect of Nitrogen Addition on Selection of Germination Trait in an Alpine Meadow on the Tibet Plateau |
| title_full | Effect of Nitrogen Addition on Selection of Germination Trait in an Alpine Meadow on the Tibet Plateau |
| title_fullStr | Effect of Nitrogen Addition on Selection of Germination Trait in an Alpine Meadow on the Tibet Plateau |
| title_full_unstemmed | Effect of Nitrogen Addition on Selection of Germination Trait in an Alpine Meadow on the Tibet Plateau |
| title_short | Effect of Nitrogen Addition on Selection of Germination Trait in an Alpine Meadow on the Tibet Plateau |
| title_sort | effect of nitrogen addition on selection of germination trait in an alpine meadow on the tibet plateau |
| topic | alpine meadow germination traits nitrogen addition species diversity Tibet Plateau |
| url | https://www.frontiersin.org/articles/10.3389/fpls.2021.634850/full |
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