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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

摘要

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.

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Sigma-Aldrich

钼, powder, <150 μm, 99.9% trace metals basis

Sigma-Aldrich

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

Sigma-Aldrich

钼, powder, <150 μm, 99.99% trace metals basis

Sigma-Aldrich

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

Sigma-Aldrich

钼, powder, 10 μm, ≥99.95% trace metals basis

Sigma-Aldrich

钼, nanopowder, <100 nm particle size (TEM), 99.8% trace metals basis

Sigma-Aldrich

钼, wire, diam. 1.0 mm, 99.95% trace metals basis

Sigma-Aldrich

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

钼, foil, 15mm disks, thickness 0.005mm, 99.9%

钼, mesh, 100x100mm, nominal aperture 0.44mm, wire diameter 0.07mm, 50 wires/inch, open area 67%, plain weave mesh

钼, wire, straight, 1000mm, diameter 0.5mm, 99.95%

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

钼, wire reel, 1000m, diameter 0.125mm, annealed, 99.95%

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

钼, rod, 50mm, diameter 5.0mm, 99.98%

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

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

钼, foil, 50x50mm, thickness 0.1mm, annealed, 99.9%

钼, foil, 25mm disks, thickness 0.0125mm, 99.9%

钼, wire reel, 1000m, diameter 0.035mm, as drawn, 99.95%

钼, tube, 500mm, outside diameter 2.0mm, inside diameter 1.3mm, wall thickness 0.35mm, 99.9%

钼, wire, straight, 1000mm, diameter 0.25mm, 99.95%

钼, tube, 100mm, outside diameter 1.0mm, inside diameter 0.7mm, wall thickness 0.15mm, 99.9%

钼, foil, 100x100mm, thickness 0.1mm, annealed, 99.9%

钼, foil, 100x100mm, thickness 0.5mm, annealed, 99.9%

钼, foil, 0.5m coil, thickness 0.05mm, annealed, 99.9%

钼, rod, 150mm, diameter 5.0mm, 99.98%

钼, rod, 100mm, diameter 2.0mm, centerless ground, 99.9%

钼, wire reel, 50m, diameter 0.025mm, hard, 99.95%

钼, foil, 8mm disks, thickness 0.007mm, 99.9%