The potential for phosphorus benefits through root placement in the rhizosphere of phosphorus-mobilising neighbours
文献类型：期刊论文
| 作者 | Teste, Francois P.1,2; Dixon, Kingsley W.1,3; Lambers, Hans1,3,4; Zhou, Jun1,5 ; Veneklaas, Erik J.1,6
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| 刊名 | OECOLOGIA
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| 出版日期 | 2020-08-01 |
| 卷号 | 193期号:4页码:843-855 |
| 关键词 | Banksia attenuataandB menziesii Climate change Minirhizotron Phosphorus-mobilisation facilitation Phosphorus remobilisation |
| ISSN号 | 0029-8549 |
| DOI | 10.1007/s00442-020-04733-6 |
| 产权排序 | 5 |
| 通讯作者 | Teste, Francois P.(francois.teste@uwa.edu.au) |
| 文献子类 | Article |
| 英文摘要 | Plants that produce specialised cluster roots, which mobilise large quantities of poorly available nutrients such as phosphorus (P), can provide a benefit to neighbouring plants that produce roots in the cluster rhizosphere, as demonstrated previously in pot studies. To be effective, such roots must be present within the short time of peak cluster activity. We tested if this requirement is met, and quantified potential P benefits, in a hyperdiverse Mediterranean woodland of southwest Australia where cluster-rooted species are prominent. Using minirhizotrons, we monitored root dynamics during the wet season in the natural habitat. We found non-cluster roots intermingling with all 57 of the observed cluster roots of the studied tree species,Banksia attenuata. Almost all (95%) of these cases were observed in a high-moisture treatment simulating the 45-year average, but not present when we intercepted some of the rainfall. We estimate that cluster-root activity can increase P availability to intermingling roots to a theoretical maximum of 80% of total P in the studied soil. Due to their high P-remobilisation efficiency (89%), which results from P rapidly being relocated from cluster roots within the plant, senescedBanksiacluster roots are a negligible P source for other roots. We conclude that, rather than serving as a P source, it is the cluster-root activity, particularly the exudation of carboxylates, that may improve the coexistence of interacting species that are capable of root intermingling, thus potentially promoting species diversity in nutrient-poor habitats, and that this mechanism will be less effective in a drying climate. |
| 电子版国际标准刊号 | 1432-1939 |
| WOS关键词 | NUTRIENT-ACQUISITION ; WHITE LUPIN ; GROWTH ; FACILITATION ; PROTEACEAE ; EXUDATION ; FOREST ; SOILS ; KLEPTOPARASITISM ; CONSERVATION |
| 资助项目 | University of Western Australia ; Australian Research Council[ARC DP0985685] ; Australian Research Council (ARC) Industrial Transformation Training grant for the Centre for Mine Site Restoration[ICI150100041] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000561231600001 |
| 出版者 | SPRINGER |
| 资助机构 | University of Western Australia ; Australian Research Council ; Australian Research Council (ARC) Industrial Transformation Training grant for the Centre for Mine Site Restoration |
| 源URL | [http://ir.imde.ac.cn/handle/131551/35496]  |
| 专题 | 成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室 |
| 通讯作者 | Teste, Francois P. |
| 作者单位 | 1.School of Biological Sciences, The University of Western Australia, 35 Stirling Highway, Crawley, Perth, WA 6009, Australia; 2.Present Address: Grupo de Estudios Ambientales, IMASL-CONICET & Universidad Nacional de San Luis, Av. Ejercito de los Andes 950, 5700 San Luis, Argentina; 3.School of Molecular and Life Sciences, Curtin University, Kent Street, Bentley, WA 6102, Australia; 4.College of Resources and Environmental Sciences, Green Development, Key Laboratory of Plant–Soil Interactions of the Ministry of Education, National Academy of Agriculture, China Agricultural University, Beijing 100193, China 5.Key Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China; 6.School of Agriculture and Environment, The University of Western Australia, 35 Stirling Highway, Crawley, Perth, WA 6009, Australia |
| 推荐引用方式 GB/T 7714 | Teste, Francois P.,Dixon, Kingsley W.,Lambers, Hans,et al. The potential for phosphorus benefits through root placement in the rhizosphere of phosphorus-mobilising neighbours[J]. OECOLOGIA,2020,193(4):843-855. |
| APA | Teste, Francois P.,Dixon, Kingsley W.,Lambers, Hans,Zhou, Jun,&Veneklaas, Erik J..(2020).The potential for phosphorus benefits through root placement in the rhizosphere of phosphorus-mobilising neighbours.OECOLOGIA,193(4),843-855. |
| MLA | Teste, Francois P.,et al."The potential for phosphorus benefits through root placement in the rhizosphere of phosphorus-mobilising neighbours".OECOLOGIA 193.4(2020):843-855. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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