Genetic and molecular mechanisms of aluminum tolerance in plants.

Genetic and molecular mechanisms of aluminum tolerance in plants.

Genetics and molecular research : GMR (2012-08-08)

C C Simões, J O Melo, J V Magalhaes, C T Guimarães

摘要

Aluminum (Al) toxicity restricts root growth and agricultural yield in acid soils, which constitute approximately 40% of the potentially arable lands worldwide. The two main mechanisms of Al tolerance in plants are internal detoxification of Al and its exclusion from root cells. Genes encoding membrane transporters and accessory transcription factors, as well as cis-elements that enhance gene expression, are involved in Al tolerance in plants; thus studies of these genes and accessory factors should be the focus of molecular breeding efforts aimed at improving Al tolerance in crops. In this review, we describe the main genetic and molecular studies that led to the identification and cloning of genes associated with Al tolerance in plants. We include recent findings on the regulation of genes associated with Al tolerance. Understanding the genetic, molecular, and physiological aspects of Al tolerance in plants is important for generating cultivars adapted to acid soils, thereby contributing to food security worldwide.

材料

Product Number

品牌

产品描述

266574

Sigma-Aldrich

铝, foil, thickness 0.45-0.55 mm, 99.999% trace metals basis

326860

Sigma-Aldrich

铝, foil, thickness 0.13 mm, ≥99.99% trace metals basis

733369

Sigma-Aldrich

铝, foil, thickness 8 μm, 99% trace metals basis

326887

Sigma-Aldrich

铝, wire, diam. 0.58 mm, ≥99.99% trace metals basis

433705

Sigma-Aldrich

铝, evaporation slug, diam. × L 6.3 mm × 6.3 mm, 99.999% trace metals basis

GF29732496

铝, tube, 200mm, outside diameter 3.0mm, inside diameter 1.62mm, wall thickness 0.69mm, hard, 99.5%

GF44675781

铝, rod, 1000mm, diameter 12.7mm, 99%

GF20784360

铝, sphere, 100pcs, diameter 2.5mm, aluminum alloy 2017 precision sphere, grade 200, 95.2%

GF94706354

铝, mesh, 150x150mm, nominal aperture 0.38mm, wire diameter 0.25mm, 40x40 wires/inch, open area 37%, plain weave mesh

GF85240694

铝, honeycomb, 600x600mm, thickness 20mm, cell size 3.2mm, cell wall 0.025mm, core density 0.072g/cm³, phenolic adhesive (resin), 99.5%

GF38294646

铝, mesh, 300x300mm, nominal aperture 0.38mm, wire diameter 0.25mm, 40x40 wires/inch, open area 37%, plain weave mesh

GF74087758

铝, wire reel, 1m, diameter 0.02mm, hard, 99.99%

GF98718935

铝, sphere, 100pcs, diameter 1.0mm, aluminum alloy 2017 precision sphere, grade 200, 95.2%

GF53821234

铝, mesh, 900x900mm, nominal aperture 0.38mm, wire diameter 0.25mm, 40x40 wires/inch, open area 37%, plain weave mesh

GF24569602

铝, foam, 150x150mm, thickness 30mm, bulk density 0.2g/cm³, porosity 0.93, aluminum 6101 grade, 98.5%

GF02417677

铝, tube, 100mm, outside diameter 0.86mm, inside diameter 0.76mm, wall thickness 0.05mm, as drawn, 99.5%

GF26812043

铝, foam, 150x150mm, thickness 3.2mm, bulk density 0.2g/cm³, porosity 0.93, 16 pores/cm, aluminum 6101 grade, 98.5%

GF51598761

铝, rod, 200mm, diameter 12.7mm, 99%

GF33055185

铝, foam, 150x150mm, thickness 6.35mm, bulk density 0.2g/cm³, porosity 0.93, 16 pores/cm, aluminum 6101 grade, 98.5%

GF86118969

铝, honeycomb, 300x300mm, thickness 5mm, cell size 19mm, cell wall 0.064mm, core density 0.029g/cm³, phenolic adhesive (resin), 99.5%

GF04958084

铝, honeycomb, 300x300mm, thickness 5mm, cell size 3.2mm, cell wall 0.025mm, core density 0.072g/cm³, phenolic adhesive (resin), 99.5%

GF86830566

铝, mesh, 600x600mm, nominal aperture 0.38mm, wire diameter 0.25mm, 40x40 wires/inch, open area 37%, plain weave mesh

GF64700524

铝, rod, 1000mm, diameter 5.0mm, as drawn, 99.999%

GF12712610

铝, sphere, 100pcs, diameter 6.0mm, 99%

GF37306267

铝, foam, 150x150mm, thickness 6.35mm, bulk density 0.2g/cm³, porosity 0.93, 2 pores/cm, aluminum 6101 grade, 98.5%

GF54273944

铝, tube, 500mm, outside diameter 0.55mm, inside diameter 0.4mm, wall thickness 0.075mm, as drawn, 99.5%

GF07499010

铝, foam, 150x150mm, thickness 10mm, bulk density 0.2g/cm³, porosity 0.93, aluminum 6101 grade, 98.5%

GF32029444

铝, rod, 100mm, diameter 12.7mm, 99%

GF28125390

铝, tube, 200mm, outside diameter 0.30mm, inside diameter 0.2mm, wall thickness 0.05mm, as drawn, 99.5%

GF10029596

铝, foam, 150x150mm, thickness 6.35mm, bulk density 0.2g/cm³, porosity 0.93, 8 pores/cm, aluminum 6101 grade, 98.5%