Functional biology of plant phosphate uptake at root and mycorrhiza interfaces

被引:439
作者
Bucher, Marcel [1 ]
机构
[1] ETH, Inst Plant Sci, Expt Stn, CH-8315 Lindau, Switzerland
关键词
arbuscular-mycorrhizal symbiosis; functional genomics of phosphate transport; gene expression; nutrient uptake; phosphate transporters; root-soil interface;
D O I
10.1111/j.1469-8137.2006.01935.x
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
Phosphorus (P) is an essential plant nutrient and one of the most limiting in natural habitats as well as in agricultural production world-wide. The control of P acquisition efficiency and its subsequent uptake and translocation in vascular plants is complex. The physiological role of key cellular structures in plant P uptake and underlying molecular mechanisms are discussed in this review, with emphasis on phosphate transport across the cellular membrane at the root and arbuscular-mycorrhizal (AM) interfaces. The tools of molecular genetics have facilitated novel approaches and provided one of the major driving forces in the investigation of the basic transport mechanisms underlying plant P nutrition. Genetic engineering holds the potential to modify the system in a targeted way at the root-soil or AM symbiotic interface. Such approaches should assist in the breeding of crop plants that exhibit improved P acquisition efficiency and thus require lower inputs of P fertilizer for optimal growth. Whether engineering of P transport systems can contribute to enhanced P uptake will be discussed.
引用
收藏
页码:11 / 26
页数:16
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