提出问题：Tremendous progress has been made on molecular aspects of plant phosphorus (P) nutrition, often without heeding information provided by soil scientists, ecophysiologists, and crop physiologists. This review suggests ways to integrate information from different disciplines. 

主要因子：When soil P availability is very low, P-mobilizing strategies are more effective than mycorrhizal strategies. Soil parameters largely determine how much P roots can acquire from P-impoverished soil, and kinetic properties of P transporters are less important. Changes in the expression of P transporters avoid P toxicity. 

策略评估：Plants vary widely in photosynthetic P-use efficiency, photosynthesis per unit leaf P. The challenge is to discover what the trade-offs are of different patterns of investment in P fractions. Less investment may save P, but are costs incurred? Are these costs acceptable for crops? These questions can be resolved only by the concerted action of scientists working at both molecular and physiological levels, rather than pursuing these problems independently.

Calcium (Ca)-enhanced phosphorus (P) toxicity in Hakea incrassata, a P-sensitive Proteaceae species.

 摘 要 

植物磷营养的分子调控机制方面已经取得了巨大的进展，但往往忽略了土壤科学家、生态学家和作物生理学家能够提供的相关信息。本综述提出了整合不同学科信息的方法。当土壤有效磷含量很低时，磷活化策略比菌根策略要更加有效。土壤性质在很大程度上决定了根系可以从磷贫乏土壤中能够获得多少磷，而磷转运蛋白的酶活特性则相对不那么重要。磷转运蛋白表达上的变化能够帮助植株避免磷毒性。植物在光合磷利用效率、单位叶磷的光合作用方面差异很大。而难点在于，发现不同磷投入模式下的平衡点。减少投入可以节约磷，但是否会产生成本？以及这些成本对农作物来说可接受吗？这些问题只能通过在分子和生理水平上进行研究的科学家一起协同解决，而不是独立地开展研究。

 Hans Lambers