Molybdenum metabolism in plants.

Molybdenum metabolism in plants.

Metallomics : integrated biometal science (2013-06-27)

Manuel Tejada-Jiménez, Alejandro Chamizo-Ampudia, Aurora Galván, Emilio Fernández, Ángel Llamas

ABSTRACT

The viability of plants relies on molybdenum, which after binding to the organic moiety of molybdopterin forms the molybdenum cofactor (Moco) and acquires remarkable redox properties. Moco is in the active site of critical molybdoenzymes, which use to work as small electron transport chains and participate in N and S metabolism, hormone biosynthesis, toxic compound transformations and other important processes not only in plants but also in all the other kingdoms of life. Molybdate metabolism in plants is reviewed here, with special attention to two main aspects, the different molybdate transporters that with a very high affinity participate in molybdenum acquisition and the recently discovered Moco enzyme amidoxime-reducing component. Their functionality is starting to be understood.

MATERIALS

Product Number

Brand

Product Description

510092

Sigma-Aldrich

Molybdenum, powder, 1-5 μm, ≥99.9% trace metals basis

357200

Sigma-Aldrich

Molybdenum, foil, thickness 1.0 mm, ≥99.9% trace metals basis

357227

Sigma-Aldrich

Molybdenum, foil, thickness 0.025 mm, ≥99.9% trace metals basis

266922

Sigma-Aldrich

Molybdenum, foil, thickness 0.1 mm, ≥99.9% trace metals basis

GF82331265

Molybdenum, foil, light tested, 25x25mm, thickness 0.05mm, annealed, 99.9%

GF83341111

Molybdenum, foil, not light tested, 25x25mm, thickness 0.005mm, 99.9%

GF66431606

Molybdenum, foil, not light tested, 25x25mm, thickness 0.006mm, 99.9%

GF84555681

Molybdenum, foil, light tested, 150x150mm, thickness 0.05mm, annealed, 99.9%

GF59041740

Molybdenum, mesh, 150x150mm, nominal aperture 0.44mm, wire diameter 0.07mm, 50 wires/inch, open area 67%, plain weave mesh

GF04272049

Molybdenum, pellets, 200g, max. size 10mm, 99.9%

GF30193781

Molybdenum, foil, not light tested, 50x50mm, thickness 0.0125mm, 99.9%

GF01792076

Molybdenum, rod, 1000mm, diameter 6.0mm, centerless ground, 99.9%

GF50216352

Molybdenum, rod, 100mm, diameter 12mm, centerless ground, 99.9%

GF00096274

Molybdenum, pellets, 50g, max. size 10mm, 99.9%

GF58061280

Molybdenum, foil, 100x100mm, thickness 0.75mm, annealed, 99.9%

GF20045786

Molybdenum, foil, not light tested, 50x50mm, thickness 0.002mm, 99.9%

GF61121304

Molybdenum, foil, not light tested, 100x100mm, thickness 0.007mm, 99.9%

GF74350267

Molybdenum, foil, not light tested, 50x50mm, thickness 0.006mm, 99.9%

GF16892242

Molybdenum, foil, light tested, 25x25mm, thickness 0.004mm, 99.9%

GF49993048

Molybdenum, microfoil, disks, 25mm, thinness 1.0μm, specific density 1022μg/cm², permanent mylar 3.5μm support, 99.9%

GF37145358

Molybdenum, foil, not light tested, 50x50mm, thickness 0.007mm, 99.9%

GF54490574

Molybdenum, rod, 1000mm, diameter 2.0mm, centerless ground, 99.9%

GF29314188

Molybdenum, rod, 1000mm, diameter 8.0mm, centerless ground, 99.9%

GF40454805

Molybdenum, foil, light tested, 25x25mm, thickness 0.005mm, 99.9%

GF01123489

Molybdenum, insulated wire, 10m, conductor diameter 0.125mm, insulation thickness 0.012mm, polyimide insulation, 99.95%

GF28017637

Molybdenum, microfoil, disks, 10mm, thinness 0.1μm, specific density 92.4μg/cm², permanent mylar 3.5μm support, 99.9%

GF12034178

Molybdenum, pellets, 100g, max. size 10mm, 99.9%

GF41758768

Molybdenum, foil, not light tested, 50x50mm, thickness 0.009mm, 99.9%

GF40435972

Molybdenum, insulated wire, 20m, conductor diameter 0.125mm, insulation thickness 0.012mm, polyimide insulation, 99.95%

GF91334213

Molybdenum, foil, 100x100mm, thickness 2.0mm, annealed, 99.9%