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

433705

Sigma-Aldrich

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

GF93309037

Aluminum, tube, 200mm, outside diameter 1.42mm, inside diameter 1.166mm, wall thickness 0.127mm, as drawn, 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

GF43419416

Aluminum, insulated wire, 1m, conductor diameter 0.1mm, insulation thickness 0.005mm, polyimide insulation, 99.95+%

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%

GF04709695

Aluminum, rod, 44mm, diameter 77.5mm, as drawn, 99.999%

GF82284408

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

GF87559420

Aluminum, tube, 0.5m coil, as drawn, outside diameter 0.30mm, inside diameter 0.2mm, wall thickness 0.05mm, 99.5%

GF94706354

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

GF49694743

Aluminum, tube, 100mm, outside diameter 0.6mm, inside diameter 0.3mm, wall thickness 0.15mm, 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%

GF72634103

Aluminum, rod, 50mm, diameter 28mm, as drawn, 99.999%

GF06197014

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

GF48798309

Aluminum, rod, 100mm, diameter 6.0mm, as drawn, 99.999%

GF54273944

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

GF12712610

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

GF19654803

Aluminum, rod, 200mm, diameter 5.0mm, as drawn, 99.999%

GF32029444

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

GF85927056

Aluminum, microleaf disks, 25mm, thinness 0.5μm, specific density 120.6μg/cm², removable support, 99.999%

GF28125390

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

GF82741990

Aluminum, rod, 500mm, diameter 5.0mm, as drawn, 99.999%

GF53651796

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