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Ambient ozone measurements in Norway 1975-1979 [Fertilizer industry, pulp and paper industry].
1981
Schjoldager J.
The role of natural organics in photochemical air pollution. Issues and research needs.
1981
Dimitriades B.
Comparative ozone dose response of gas exchange in a ponderosa pine stand exposed to long-term fumigations.
1981
Coyne P.I. | Bingham G.E.
A simple and inexpensive method for sampling 2,4-D [dichlorophenoxy acetic acid] and 2,4,5-T [trichlorophenoxy acetic acid] herbicides from air.
1978
Jackson J.W. | Thomas T.C.
Post-application volatillization of pesticides under field conditions.
1978
Taylor A.W.
The impact of gold smelter emissions on vegetation and soils of a sub-arctic forest-tundra transition ecosystem [Canada].
1978
Hocking D. | Kuchar P. | Plambeck J.A. | Smith R.A.
Fluoride cycling near a coastal emission source [Levels in plant tissues].
1978
Ares J.O.
Airborne studies of particles and gases from forest fires [Pollution].
1978
Radke L.F. | Stith J.L. | Hegg D.A. | Hobbs P.V.
Evidence of sulfur-bound reduced copper in bamboo exposed to high silicon and copper concentrations Full text
2014
Collin B. | Doelsch E. | Keller C. | Cazevieille P. | Tella M. | Chaurand P. | Panfili F. | Hazemann J.L. | Meunier J.D.
Evidence of sulfur-bound reduced copper in bamboo exposed to high silicon and copper concentrations Full text
2014
Collin B. | Doelsch E. | Keller C. | Cazevieille P. | Tella M. | Chaurand P. | Panfili F. | Hazemann J.L. | Meunier J.D.
We examined copper (Cu) absorption, distribution and toxicity and the role of a silicon (Si) supplementation in the bamboo Phyllostachys fastuosa. Bamboos were maintained in hydroponics for 4 months and submitted to two different Cu (1.5 and 100 mm Cu2þ) and Si (0 and 1.1 mM) concentrations. Cu and Si partitioning and Cu speciation were investigated by chemical analysis, microscopic and spectroscopic techniques. Copper was present as Cu(I) and Cu(II) depending on plant parts. Bamboo mainly coped with high Cu exposure by: (i) high Cu sequestration in the root (ii) Cu(II) binding to amino and carboxyl ligands in roots, and (iii) Cu(I) complexation with both organic and inorganic sulfur ligands in stems and leaves. Silicon supplementation decreased the visible damage induced by high Cu exposure and modified Cu speciation in the leaves where a higher proportion of Cu was present as inorganic Cu(I)S compounds, which may be less toxic. (Résumé d'auteur)
Show more [+] Less [-]Evidence of sulfur-bound reduced copper in bamboo exposed to high silicon and copper concentrations Full text
2014
Collin, Blanche | Doelsch, Emmanuel | Keller, Catherine | Cazevieille, Patrick | Tella, Marie | Chaurand, Perrine | Panfili, Frédéric | Hazemann, Jean-Louis | Meunier, Jean-Dominique
We examined copper (Cu) absorption, distribution and toxicity and the role of a silicon (Si) supplementation in the bamboo Phyllostachys fastuosa. Bamboos were maintained in hydroponics for 4 months and submitted to two different Cu (1.5 and 100 μm Cu2+) and Si (0 and 1.1 mM) concentrations. Cu and Si partitioning and Cu speciation were investigated by chemical analysis, microscopic and spectroscopic techniques. Copper was present as Cu(I) and Cu(II) depending on plant parts. Bamboo mainly coped with high Cu exposure by: (i) high Cu sequestration in the root (ii) Cu(II) binding to amino and carboxyl ligands in roots, and (iii) Cu(I) complexation with both organic and inorganic sulfur ligands in stems and leaves. Silicon supplementation decreased the visible damage induced by high Cu exposure and modified Cu speciation in the leaves where a higher proportion of Cu was present as inorganic Cu(I)S compounds, which may be less toxic.
Show more [+] Less [-]Field surveys of vegetation during a period of rising electric power generation in the Ohio River Valley [Sulfur dioxide].
1984
Jacobson J.S. | Showman R.E.