Xylomelum occidentale(Proteaceae) accesses relatively mobile soil organic phosphorus without releasing carboxylates
文献类型：期刊论文
| 作者 | Zhong, Hongtao3; Zhou, Jun3,4 ; Azmi, Azrul3; Arruda, Andre J.1,3; Doolette, Ashlea L.2; Smernik, Ronald J.2; Lambers, Hans3
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| 刊名 | JOURNAL OF ECOLOGY
 |
| 出版日期 | 2020-08-19 |
| 页码 | DOI: 10.1111/1365-2745.13468 |
| ISSN号 | 0022-0477 |
| 关键词 | carboxylates ecophysiology manganese phosphatases Proteaceae soil organic P solution(31)P-NMR Xylomelum |
| DOI | 10.1111/1365-2745.13468 |
| 通讯作者 | Zhong, Hongtao(hongtao.zhong@uwa.edu.au) |
| 产权排序 | 2 |
| 文献子类 | Article; Early Access |
| 英文摘要 | Hundreds of Proteaceae species in Australia and South Africa typically grow on phosphorus (P)-impoverished soils, exhibiting a carboxylate-releasing P-mobilizing strategy. In the Southwest Australian Biodiversity Hotspot, twoXylomelum(Proteaceae) species are widely distributed, but restricted within that distribution. We grewXylomelum occidentalein hydroponics at 1 mu M P. Leaves, seeds, rhizosheath and bulk soil were collected in natural habitats. Xylomelum occidentaledid not produce functional cluster roots and occupied soils that are somewhat less P-impoverished than those in typical Proteaceae habitats in the region. Based on measurements of foliar manganese concentrations (a proxy for rhizosphere carboxylate concentrations) and P fractions in bulk and rhizosheath soil, we conclude thatX. occidentaleaccesses organic P, without releasing carboxylates. Solution(31)P-NMR spectroscopy revealed which organic P formsX. occidentaleaccessed. Xylomelum occidentaleuses a strategy that differs fundamentally from that typical in Proteaceae, accessing soil organic P without carboxylates. We surmise that this novel strategy is likely expressed also in co-occurring non-Proteaceae that lack a carboxylate-exuding strategy. These co-occurring species are unlikely to benefit from mycorrhizal associations, because plant-available soil P concentrations are too low. Synthesis. Our findings show the first field evidence of effectively utilizing soil organic P byX. occidentalewithout carboxylate exudation and explain their relatively restricted distribution in an old P-impoverished landscape, contributing to a better understanding of how diverse P-acquisition strategies coexist in a megadiverse ecosystem. |
| 电子版国际标准刊号 | 1365-2745 |
| WOS关键词 | NUTRIENT-ACQUISITION STRATEGIES ; PHOSPHATASE-ACTIVITY ; ACID-PHOSPHATASE ; CLUSTER ROOTS ; PROTEACEAE ; PLANTS ; EXUDATION ; DIVERSITY ; BIODIVERSITY ; FOREST |
| 资助项目 | Australian Research Council[DP130100005] ; Australian Research Council[DP140100148] |
| WOS研究方向 | Plant Sciences ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| 出版者 | WILEY |
| WOS记录号 | WOS:000560550200001 |
| 资助机构 | Australian Research Council |
| 源URL | [http://ir.imde.ac.cn/handle/131551/35456]  |
| 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 | Zhong, Hongtao |
| 作者单位 | 1.Univ Fed Minas Gerais, Dept Bot, Belo Horizonte, MG, Brazil; 2.Univ Adelaide, Sch Agr Food & Wine, Urrbrae, SA, Australia 3.Univ Western Australia, Sch Biol Sci, Perth, WA, Australia; 4.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Surface Proc & Ecol Regulat, Chengdu, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Zhong, Hongtao,Zhou, Jun,Azmi, Azrul,et al. Xylomelum occidentale(Proteaceae) accesses relatively mobile soil organic phosphorus without releasing carboxylates[J]. JOURNAL OF ECOLOGY,2020:DOI: 10.1111/1365-2745.13468. |
| APA | Zhong, Hongtao.,Zhou, Jun.,Azmi, Azrul.,Arruda, Andre J..,Doolette, Ashlea L..,...&Lambers, Hans.(2020).Xylomelum occidentale(Proteaceae) accesses relatively mobile soil organic phosphorus without releasing carboxylates.JOURNAL OF ECOLOGY,DOI: 10.1111/1365-2745.13468. |
| MLA | Zhong, Hongtao,et al."Xylomelum occidentale(Proteaceae) accesses relatively mobile soil organic phosphorus without releasing carboxylates".JOURNAL OF ECOLOGY (2020):DOI: 10.1111/1365-2745.13468. |
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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