Arbuscular mycorrhizal fungi contribute to phosphorus uptake by wheat grown in a phosphorus-fixing soil even in the absence of positive growth responses
文献类型：期刊论文
| 作者 | Holloway, Robert E.; Smith, Sally E.; Li, Huiying; Smith, F. Andrew; Zhu, Yongguan |
| 刊名 | NEW PHYTOLOGIST
 |
| 出版日期 | 2006 |
| 卷号 | 172期号:3页码:536-543 |
| 关键词 | Mycorrhizal Responsiveness Phosphorus (p)-fixing Soil P-32 Uptake Soil P-extraction |
| 英文摘要 | We used P-32 to quantify the contribution of an arbuscular mycorrhizal (AM) fungus (Glomus intraradices) to phosphorus (P) uptake by wheat (Triticum aestivum), grown in compartmented pots. The soil was from a major cereal-growing area, the Eyre Peninsula, South Australia; it was highly calcareous and P-fixing. Fertilizer P was added to soil at 20 mg kg(-1), as solid or liquid. Two extraction methods were used to estimate plant-available P. Fungal colonization was well established at harvest (36 d). Application of P decreased both colonization and hyphal length density in soil, with small differences between different P fertilizers. Plants showed large positive responses in terms of growth or total P uptake to all P additions, and showed no positive (or even negative) responses to AM colonization, regardless of P application. P-32 was detected only in AM plants, and we calculated that over 50% of P uptake by plants was absorbed via AM fungi, even when P was added. The results add to the growing body of knowledge that 'nonresponsive' AM plants have a functional AM pathway for P transfer to the plant; it should not be ignored in breeding plants for root traits designed to improve P uptake. |
| WOS记录号 | WOS:000241238800016 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/23047]  |
| 专题 | 生态环境研究中心_土壤环境科学实验室 |
| 推荐引用方式 GB/T 7714 | Holloway, Robert E.,Smith, Sally E.,Li, Huiying,et al. Arbuscular mycorrhizal fungi contribute to phosphorus uptake by wheat grown in a phosphorus-fixing soil even in the absence of positive growth responses[J]. NEW PHYTOLOGIST,2006,172(3):536-543. |
| APA | Holloway, Robert E.,Smith, Sally E.,Li, Huiying,Smith, F. Andrew,&Zhu, Yongguan.(2006).Arbuscular mycorrhizal fungi contribute to phosphorus uptake by wheat grown in a phosphorus-fixing soil even in the absence of positive growth responses.NEW PHYTOLOGIST,172(3),536-543. |
| MLA | Holloway, Robert E.,et al."Arbuscular mycorrhizal fungi contribute to phosphorus uptake by wheat grown in a phosphorus-fixing soil even in the absence of positive growth responses".NEW PHYTOLOGIST 172.3(2006):536-543. |
入库方式： OAI收割
来源：生态环境研究中心
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