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Merck

Nitric oxide signaling in aluminum stress in plants.

Protoplasma (2011-08-19)
Huyi He, Jie Zhan, Longfei He, Minghua Gu
摘要

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.

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铝, powder, ≥91% (complexometric)
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铝, foil, thickness 0.25 mm, 99.999% trace metals basis
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铝, foil, thickness 0.45-0.55 mm, 99.999% trace metals basis
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铝, ACS reagent, 99%, wire, wire diam. ~1.5 mm
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铝, foil, thickness 0.13 mm, ≥99.99% trace metals basis
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铝, pellets, 3-12 mm, 99.99% trace metals basis
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铝, wire, diam. 0.58 mm, ≥99.99% trace metals basis
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铝, pellets, 3-8 mesh, ≥99.999% trace metals basis
铝, foam, 150x150mm, thickness 30mm, bulk density 0.2g/cm3, porosity 0.93, aluminum 6101 grade, 98.5%
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铝, foil, thickness 1.0 mm, 99.999% trace metals basis
铝, rod, 1000mm, diameter 12.7mm, 99%
铝, sphere, 100pcs, diameter 1.0mm, aluminum alloy 2017 precision sphere, grade 200, 95.2%
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铝, evaporation slug, diam. × L 6.3 mm × 6.3 mm, 99.999% trace metals basis
铝, foam, 150x150mm, thickness 3.2mm, bulk density 0.2g/cm3, porosity 0.93, 16 pores/cm, aluminum 6101 grade, 98.5%
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铝, wire reel, 20m, diameter 0.7mm, as drawn, 99.5%
铝, rod, 500mm, diameter 15.0mm, as drawn, 99.999%