Effects of Salt on Root Aeration, Nitrification, and Nitrogen Uptake in Mangroves
文献类型：期刊论文
| 作者 | Zhao, Yan2,3; Wang, Xun2,4; Wang, Youshao2; Jiang, Zhaoyu1,2; Ma, Xiaoyu2,3; Inyang, Aniefiok Ini2; Cheng, Hao2; zhaoyan1981@qqhru.edu.cn; kerriganwang@scau.edu.cn; yswang@scsio.ac.cn |
| 刊名 | FORESTS
 |
| 出版日期 | 2019 |
| 卷号 | 10期号:12页码:1131 |
| 关键词 | mangrove nitrogen porosity radial oxygen loss salt suberization |
| DOI | 10.3390/f10121131 |
| 英文摘要 | The potential effects of salt on the growth, root anatomy, radial oxygen loss (ROL), and nitrogen (N) dynamics in mangroves were investigated using the seedlings of Avicennia marina (Forsk.) Vierh. The results showed that a moderate salinity (200 mM NaCl) appeared to have little negative effect on the growth of A. marina. However, higher salt stresses (400 and 600 mM NaCl) significantly inhibited the biomass yield. Concentrations of N in the roots and leaves decreased sharply with increasing salinity. Nevertheless, the presence of salt directly altered root anatomy (e.g., reduced root porosity and promoted suberization within the exodermis and endodermis), leading to a significant reduction in ROL. The results further showed that reduced ROL induced by salt could restrain soil nitrification, resulting in less ammonia-oxidizing archaea and bacteria (AOA and AOB) gene copies and lower concentrations of NO3- in the soils. While increased root suberization induced by salt inhibited NH4+ and NO3- uptake and influx into the roots. In summary, this study indicated that inhibited root aeration may be a defense response to salt, however these root symptoms were not advantageous for rhizosphere nitrification and N uptake by A. marina. |
| 资助机构 | National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [41676086, 41430966]; Science and Technology Basic Resources Investigation Program of China [2017FY100707]; Natural Science Foundation of Guangdong provinceNational Natural Science Foundation of Guangdong Province [2014A030313783]; Science and Technology Project of Guangdong province [2016A020222011]; Guangdong special branch plans young talent with scientific and technological innovation [2016TQ03Z985]; Guangzhou Science and Technology Project [20171001013]; program of preponderant and characteristic discipline of Heilong Jiang province [YSTSXK201879] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [41676086, 41430966]; Science and Technology Basic Resources Investigation Program of China [2017FY100707]; Natural Science Foundation of Guangdong provinceNational Natural Science Foundation of Guangdong Province [2014A030313783]; Science and Technology Project of Guangdong province [2016A020222011]; Guangdong special branch plans young talent with scientific and technological innovation [2016TQ03Z985]; Guangzhou Science and Technology Project [20171001013]; program of preponderant and characteristic discipline of Heilong Jiang province [YSTSXK201879] |
| 源URL | [http://ir.scsio.ac.cn/handle/344004/18188]  |
| 专题 | 南海海洋研究所_热带海洋环境国家重点实验室(LTO) |
| 作者单位 | 1.South China Agr Univ, Coll Marine Sci, Guangzhou 510642, Peoples R China 2.Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou 510301, Peoples R China 3.Chinese Acad Sci, South China Sea Inst Oceanol, Daya Bay Marine Biol Res Stn, Guangzhou 510301, Peoples R China 4.Qiqihar Univ, Coll Life Sci & Agroforestry, Qiqihar 161006, Peoples R China 5.Linyi Univ, Coll Life Sci, Linyi 276000, Shandong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, Yan,Wang, Xun,Wang, Youshao,et al. Effects of Salt on Root Aeration, Nitrification, and Nitrogen Uptake in Mangroves[J]. FORESTS,2019,10(12):1131. |
| APA | Zhao, Yan.,Wang, Xun.,Wang, Youshao.,Jiang, Zhaoyu.,Ma, Xiaoyu.,...&chenghao@scsio.ac.cn.(2019).Effects of Salt on Root Aeration, Nitrification, and Nitrogen Uptake in Mangroves.FORESTS,10(12),1131. |
| MLA | Zhao, Yan,et al."Effects of Salt on Root Aeration, Nitrification, and Nitrogen Uptake in Mangroves".FORESTS 10.12(2019):1131. |
入库方式： OAI收割
来源：南海海洋研究所
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