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

IRMM523A

Aluminum, IRMM^®, certified reference material, 0.1 mm foil

338788

Sigma-Aldrich

Aluminum, pellets, 3-12 mm, 99.99% trace metals basis

266957

Sigma-Aldrich

Aluminum, foil, thickness 1.0 mm, 99.999% trace metals basis

326860

Sigma-Aldrich

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

326852

Sigma-Aldrich

Aluminum, foil, thickness 0.25 mm, 99.999% trace metals basis

266574

Sigma-Aldrich

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

GF70878976

Aluminum, wire reel, 50m, diameter 0.125mm, as drawn, 99.5%

GF04958084

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

GF19881928

Aluminum, honeycomb, 300x300mm, thickness 20mm, cell size 3.2mm, cell wall 0.025mm, core density 0.072g/cm³, phenolic adhesive (resin), 99.5%

GF12106897

Aluminum, foam, 150x150mm, thickness 6.35mm, bulk density 0.2g/cm³, porosity 0.93, 4 pores/cm, aluminum 6101 grade, 98.5%

GF80027737

Aluminum, honeycomb, 600x600mm, thickness 26.5mm, cell size 6.3mm, cell wall 0.064mm, core density 0.083g/cm³, phenolic adhesive (resin), facing skin aluminum 0.55mm, 99.9%

GF70010222

Aluminum, honeycomb, 150x150mm, thickness 10mm, cell size 3.2mm, cell wall 0.025mm, core density 0g/cm³, phenolic adhesive (resin), 99.5%

GF31796725

Aluminum, honeycomb, 300x300mm, thickness 26.5mm, cell size 6.3mm, cell wall 0.064mm, core density 0.083g/cm³, phenolic adhesive (resin), facing skin glass fiber 0.5mm, 99.9%

GF33055185

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

GF26812043

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

GF51278070

Aluminum, honeycomb, 300x300mm, thickness 10mm, cell size 3.2mm, cell wall 0.025mm, core density 0g/cm³, phenolic adhesive (resin), 99.5%

GF99626103

Aluminum, honeycomb, 600x600mm, thickness 20mm, cell size 4.8mm, cell wall 0.038mm, core density 0.070g/cm³, phenolic adhesive (resin), 99.5%

GF74590724

Aluminum, honeycomb, 600x600mm, thickness 26.5mm, cell size 6.3mm, cell wall 0.064mm, core density 0.083g/cm³, phenolic adhesive (resin), facing skin glass fiber 0.5mm, 99.9%

GF04614724

Aluminum, honeycomb, 600x600mm, thickness 10mm, cell size 3.2mm, cell wall 0.025mm, core density 0g/cm³, phenolic adhesive (resin), 99.5%

GF25360354

Aluminum, rod, 50mm, diameter 30.0mm, as drawn, 99.999%

GF44675781

Aluminum, rod, 1000mm, diameter 12.7mm, 99%

GF76893889

Aluminum, microfoil, disks, 25mm, thinness 0.1μm, specific density 25.6μg/cm², permanent mylar 3.5μm support, 99.999%

GF20500197

Aluminum, tube, 200mm, outside diameter 1.96mm, inside diameter 1.4mm, wall thickness 0.28mm, as drawn, 99.5%

GF86830566

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

GF04746472

Aluminum, tube, 100mm, outside diameter 1.42mm, inside diameter 1.166mm, wall thickness 0.127mm, as drawn, 99.5%

GF31003456

Aluminum, rod, 100mm, diameter 5.0mm, as drawn, 99.999%

GF37288020

Aluminum, rod, 1000mm, diameter 6.0mm, as drawn, 99.999%

GF64700524

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

GF52964006

Aluminum, tube, 100mm, outside diameter 1.96mm, inside diameter 1.4mm, wall thickness 0.28mm, as drawn, 99.5%

GF98449576

Aluminum, rod, 100mm, diameter 10.0mm, as drawn, 99.999%