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

RESUMEN

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.

MATERIALES

Referencia del producto

Marca

Descripción del producto

11009

Sigma-Aldrich

Aluminum, powder, ≥91% (complexometric)

266558

Sigma-Aldrich

Aluminum, wire, diam. 1.0 mm, 99.999% trace metals basis

518573

Sigma-Aldrich

Aluminum, granular, <1 mm, 99.7% trace metals basis

326852

Sigma-Aldrich

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

338788

Sigma-Aldrich

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

266523

Sigma-Aldrich

Aluminum, ReagentPlus^®, beads, 5-15 mm, 99.9% trace metals basis

653608

Sigma-Aldrich

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

266574

Sigma-Aldrich

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

310360

Sigma-Aldrich

Aluminum, ACS reagent, 99%, wire, wire diam. ~1.5 mm

326860

Sigma-Aldrich

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

266515

Sigma-Aldrich

Aluminum, ≤30 μm, spherical powder, ≥99%

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

733369

Sigma-Aldrich

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

GF44675781

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

266957

Sigma-Aldrich

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

433705

Sigma-Aldrich

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

326941

Sigma-Aldrich

Aluminum, pellets, 3-8 mesh, ≥99.999% trace metals basis

GF98718935

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

GF24569602

Aluminum, foam, 150x150mm, thickness 30mm, bulk density 0.2g/cm³, porosity 0.93, 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%

GF94706354

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

GF51598761

Aluminum, rod, 200mm, diameter 12.7mm, 99%

GF29732496

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

GF64700524

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

GF32029444

Aluminum, rod, 100mm, diameter 12.7mm, 99%

GF51278070

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

GF95825403

Aluminum, sphere, 100pcs, diameter 3.0mm, aluminum alloy 2017 precision sphere, grade 200, 95.2%

GF40979773

Aluminum, rod, 500mm, diameter 6.0mm, as drawn, 99.999%

GF63629219

Aluminum, tube, 500mm, outside diameter 1.42mm, inside diameter 1.166mm, wall thickness 0.127mm, as drawn, 99.5%