Nitric oxide signaling in aluminum stress in plants.

Nitric oxide signaling in aluminum stress in plants.

Protoplasma (2011-08-19)

Huyi He, Jie Zhan, Longfei He, Minghua Gu

ABSTRACT

Nitric oxide (NO) is a ubiquitous signal molecule involved in multiple plant responses to environmental stress. In the recent years, the regulating role of NO on heavy metal toxicity in plants is realized increasingly, but knowledge of NO in alleviating aluminum (Al) toxicity is quite limited. In this article, NO homeostasis between its biosynthesis and elimination in plants is presented. Some genes involved in NO/Al network and their expressions are also introduced. Furthermore, the role of NO in Al toxicity and the functions in Al tolerance are discussed. It is proposed that Al toxicity may disrupt NO homeostasis, leading to endogenous NO concentration being lower than required for root elongation in plants. There are many evidences that pointed out that the exogenous NO treatments improve Al tolerance in plants through activating antioxidative capacity to eliminate reactive oxygen species. Most of the work with respect to NO regulating pathways and functions still has to be done in the future.

MATERIALS

Product Number

Brand

Product Description

653608

Sigma-Aldrich

Aluminum, powder, <5 μm particle size, 99.5% trace metals basis

202584

Sigma-Aldrich

Aluminum, powder, <75 μm, ≥99.95% trace metals basis

326887

Sigma-Aldrich

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

GF03467202

Aluminum, honeycomb, 300x300mm, thickness 52.3mm, cell size 6.3mm, cell wall 0.064mm, core density 0.083g/cm³, phenolic adhesive (resin), facing skin glass fiber 0.75mm, 99.9%

GF37306267

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

GF26773230

Aluminum, honeycomb, 300x300mm, thickness 13.9mm, cell size 6.3mm, cell wall 0.064mm, core density 0.083g/cm³, phenolic adhesive (resin), facing skin aluminum 0.55mm, 99.9%

GF86118969

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

GF36470178

Aluminum, honeycomb, 300x300mm, thickness 5mm, cell size 13mm, cell wall 0.1mm, core density 0.062g/cm³, phenolic adhesive (resin), 99.5%

GF96312326

Aluminum, honeycomb, 600x600mm, thickness 26.5mm, cell size 6.3mm, cell wall 0.064mm, core density 0.083g/cm³, phenolic adhesive (resin), facing skin carbon fiber / epoxy, 99.9%

GF87997000

Aluminum, honeycomb, 300x300mm, thickness 20mm, cell size 4.8mm, cell wall 0.038mm, core density 0.070g/cm³, phenolic adhesive (resin), 99.5%

GF98440027

Aluminum, honeycomb, 600x600mm, thickness 10mm, cell size 6.3mm, cell wall 0.064mm, core density 0.083g/cm³, phenolic adhesive (resin), 99.5%

GF10029596

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

GF33400224

Aluminum, honeycomb, 600x600mm, thickness 52.3mm, cell size 6.3mm, cell wall 0.064mm, core density 0.083g/cm³, phenolic adhesive (resin), facing skin glass fiber 0.75mm, 99.9%

GF58771301

Aluminum, honeycomb, 600x600mm, thickness 5mm, cell size 13mm, cell wall 0.1mm, core density 0.062g/cm³, phenolic adhesive (resin), 99.5%

GF47839124

Aluminum, insulated wire, 20m, conductor diameter 0.1mm, insulation thickness 0.005mm, polyimide insulation, 99.95+%

GF70373505

Aluminum, microleaf disks, 10mm, thinness 1.0μm, specific density 269.9μg/cm², removable support, 99.999%

GF53821234

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

GF84145462

Aluminum, microfoil, disks, 25mm, thinness 1.0μm, specific density 269.9μg/cm², permanent mylar 3.5μm support, 99.999%

GF62984346

Aluminum, tube, 2m coil, as drawn, outside diameter 0.30mm, inside diameter 0.2mm, wall thickness 0.05mm, 99.5%

GF27426944

Aluminum, insulated wire, 2m, conductor diameter 0.1mm, insulation thickness 0.005mm, polyimide insulation, 99.95+%

GF14437975

Aluminum, tube, 1000mm, outside diameter 0.86mm, inside diameter 0.76mm, wall thickness 0.05mm, as drawn, 99.5%

GF20784360

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

GF82284408

Aluminum, microleaf disks, 25mm, thinness 0.15μm, specific density 41.28μg/cm², removable support, 99.999%

GF53651796

Aluminum, tube, 1000mm, outside diameter 1.42mm, inside diameter 1.166mm, wall thickness 0.127mm, as drawn, 99.5%

GF86572042

Aluminum, rod, 100mm, diameter 12.0mm, as drawn, 99.999%

GF10105524

Aluminum, microleaf disks, 25mm, thinness 0.25μm, specific density 68.8μg/cm², removable support, 99.999%

GF06197014

Aluminum, rod, 200mm, diameter 10.0mm, as drawn, 99.999%

GF54273944

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

GF08137166

Aluminum, wire reel, 1000m, diameter 0.7mm, as drawn, 99.5%

GF18607473

Aluminum, tube, 1000mm, outside diameter 0.55mm, inside diameter 0.4mm, wall thickness 0.075mm, as drawn, 99.5%