Dynamics of radial oxygen loss in mangroves subjected to waterlogging
文献类型：期刊论文
| 作者 | Cheng, Hao; Wu, Mei-Lin; Li, Chang-Da; Sun, Fu-Lin; Sun, Cui-Ci; Wang, You-Shao |
| 刊名 | ECOTOXICOLOGY
 |
| 出版日期 | 2020 |
| 卷号 | 29期号:6页码:684 |
| 关键词 | Mangroves Tidal flooding Root porosity Radial oxygen loss |
| ISSN号 | 0963-9292 |
| 英文摘要 | Tidal flooding can directly result in oxygen (O-2) shortage, however the functions of root aeration in flooding tolerance and O-2 dynamics within mangroves are still poorly understood. Thus, in this study, the correlations among waterlogging tolerance, root porosity and O-2 movement within the plants were investigated using two mangrove species (Aegiceras corniculatum and Bruguiera gymnorrhiza) and a semi-mangrove Heritiera littoralis. Based on the present data, the species A. corniculatum and B. gymnorrhiza, which possessed higher root porosity, exhibited higher waterlogging tolerance, while H. littoralis is intolerant. Increased root porosity, leaf stoma, and total ROL were observed in the roots of A. corniculatum and B. gymnorrhiza growing in stagnant solution when compared to respective aerated controls. As for ROL spatial pattern along roots, external anaerobic condition could promote ROL from apical root regions but reduce ROL from basal roots, leading to a 'tighter barrier'. In summary, the present study indicated that the plants (e.g., A. corniculatum and B. gymnorrhiza) prioritized to ensure O-2 diffusion towards root tips under waterlogging by increasing aerenchyma formation and reducing O-2 leakage at basal root regions. |
| 源URL | [http://ir.scsio.ac.cn/handle/344004/18311]  |
| 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.Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou 510301, Peoples R China 2.[Cheng, Hao 3.Wu, Mei-Lin 4.Sun, Fu-Lin 5.Sun, Cui-Ci 6.[Cheng, Hao 7.Wu, Mei-Lin 8.Sun, Fu-Lin 9.Sun, Cui-Ci 10.Chinese Acad Sci, Daya Bay Marine Biol Res Stn, Shenzhen 518121, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cheng, Hao,Wu, Mei-Lin,Li, Chang-Da,et al. Dynamics of radial oxygen loss in mangroves subjected to waterlogging[J]. ECOTOXICOLOGY,2020,29(6):684, 690. |
| APA | Cheng, Hao,Wu, Mei-Lin,Li, Chang-Da,Sun, Fu-Lin,Sun, Cui-Ci,&Wang, You-Shao.(2020).Dynamics of radial oxygen loss in mangroves subjected to waterlogging.ECOTOXICOLOGY,29(6),684. |
| MLA | Cheng, Hao,et al."Dynamics of radial oxygen loss in mangroves subjected to waterlogging".ECOTOXICOLOGY 29.6(2020):684. |
入库方式： OAI收割
来源：南海海洋研究所
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