| Organic nitrogen uptake is a significant contributor to nitrogen economy of subtropical epiphytic bryophytes | |
Song, Liang ; Lu, Hua-Zheng; Xu, Xing-Liang; ...; Liu, Wen-Yao
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| 2016 | |
| Source Publication | Scientific Reports
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| Volume | 6Issue:30408 |
| Abstract | Without any root contact with the soil, epiphytic bryophytes must experience and explore poor, patchy, and heterogeneous habitats; while, the nitrogen (N) uptake and use strategies of these organisms remain uncharacterized, which obscures their roles in the N cycle. To investigate the N sources, N preferences, and responses to enhanced N deposition in epiphytic bryophytes, we carried out an in situ manipulation experiment via the N-15 labelling technique in an Asian cloud forest. Epiphytic bryophytes obtained more N from air deposition than from the bark, but the contribution of N from the bark was non-negligible. Glycine accounted for 28.4% to 44.5% of the total N in bryophyte tissue, which implies that organic N might serve as an important N source. Increased N deposition increased the total N uptake, but did not alter the N preference of the epiphytic bryophytes. This study provides sound evidence that epiphytic bryophytes could take up N from the bark and wet deposition in both organic and inorganic N forms. It is thus important to consider organic N and bark N sources, which were usually neglected, when estimating the role of epiphytic bryophytes in N cycling and the impacts of N deposition on epiphytic bryophytes in cloud forests. |
| Keyword | Montane Cloud Forest Earliest Land Plants Amino-acid Nitrogen Boreal Forests Atmospheric Ammonium Sphagnum Mosses n Deposition Costa-rica Fixation Growth |
| Document Type | 期刊论文 |
| Identifier | https://ir.xtbg.ac.cn/handle/353005/10026 |
| Collection | 恢复生态学组 |
| Corresponding Author | Liu, Wen-Yao |
| Recommended Citation GB/T 7714 | Song, Liang,Lu, Hua-Zheng,Xu, Xing-Liang,et al. Organic nitrogen uptake is a significant contributor to nitrogen economy of subtropical epiphytic bryophytes[J]. Scientific Reports,2016,6(30408). |
| APA | Song, Liang,Lu, Hua-Zheng,Xu, Xing-Liang,...,&Liu, Wen-Yao.(2016).Organic nitrogen uptake is a significant contributor to nitrogen economy of subtropical epiphytic bryophytes.Scientific Reports,6(30408). |
| MLA | Song, Liang,et al."Organic nitrogen uptake is a significant contributor to nitrogen economy of subtropical epiphytic bryophytes".Scientific Reports 6.30408(2016). |
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