Copper in soils, plants, and ruminant animal nutrition with special reference to sub‐Saharan Africa

Haque, I.; Aduayi, E. A.; Sibanda, S.

doi:10.1080/01904169309364680

Cited by 10 publications

(10 citation statements)

References 93 publications

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“…The EXAFS spectrum and FT possess additional structure when Cu(glutamate) 2 2Ϫ is the dominant species in solution (Figs. 7b and 8b).…”

Section: Cu(ii)-glutamate Complexes In Solutionmentioning

confidence: 97%

“…Fourier transform, overall fit, and individual fit components of the processed Cu K-edge EXAFS spectra of Cu(glutamate) 2 2Ϫ complexes in solution at pH 7.5. Individual components correspond to Cu-O eq , Cu-C, and Cu-O d single scattering paths and MS1 and MS2 multiple scattering paths shown in Fig.…”

Section: Figmentioning

confidence: 99%

“…Cu(II) is essential for many enzyme functions in plants, animals, and humans (1,2). However, slightly elevated Cu(II) concentrations as a result of contamination from mine tailings effluent, agricultural runoff, or industrial and public wastewater discharge may be toxic to plants and animals in marine and fresh water ecosystems (3,4).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Structure and Bonding of Cu(II)–Glutamate Complexes at the γ-Al2O3–Water Interface

Fitts

Persson

Brown

et al. 1999

Journal of Colloid and Interface Science

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“…The EXAFS spectrum and FT possess additional structure when Cu(glutamate) 2 2Ϫ is the dominant species in solution (Figs. 7b and 8b).…”

Section: Cu(ii)-glutamate Complexes In Solutionmentioning

confidence: 97%

Section: Figmentioning

confidence: 99%

See 1 more Smart Citation

Structure and Bonding of Cu(II)–Glutamate Complexes at the γ-Al2O3–Water Interface

Fitts

Persson

Brown

et al. 1999

Journal of Colloid and Interface Science

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“…Mineral imbalances in the soil and consequently in the plants growing on this soil often aggravate this situation (Haque et al, 1993). In Ethiopia, copper deficiency is a frequent problem when grazing on pastures, as low levels of Cu are accompanied by high levels of Mo and S and very high levels of Fe (Roeder, 1980;Faye and Grillet, 1984;Faye et al, 1991;Dermauw et al, 2013a).…”

Section: Introductionmentioning

confidence: 99%

A disparate trace element metabolism in zebu (Bos indicus) and crossbred (Bos indicus × Bos taurus) cattle in response to a copper-deficient diet1

Dermauw

Cuyper

Duchateau

et al. 2014

Journal of Animal Science

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Copper deficiency is a commonly diagnosed problem in cattle around the globe. In Jimma, Ethiopia, 8 zebu (Bos indicus) and 8 zebu × Holstein Friesian cross (Bos taurus × Bos indicus) heifers were used in an 11-wk study to investigate breed type differences and effects of Cu deficiency on concentrations of trace elements in plasma and edible tissues as well as mRNA expression of Cu-related genes. Heifers were fed a grass diet (6.4 ± 0.2 [SEM] mg Cu/kg DM) supplemented with 1 mg Mo/kg DM in wk 1 to 4 and 2 mg Mo/ kg DM in wk 5 to 11, with blood samples collected every 2 wk and tissue collection postmortem. Plasma, liver, kidney, and semitendinosus and cardiac muscle were analyzed for Zn, Cu, Fe, Se, Mo, Co, and Mn. Expression of mRNA Cu-related genes was measured in aorta (lysyl oxidase [LOX] ) as well as the Se-related glutathione peroxidase 1 (Gpx1). Zebu cattle maintained initial plasma Cu concentrations just below the threshold value for deficiency, whereas crossbred cattle gradually became severely Cu deficient over time (P < 0.001). In contrast, plasma Zn and Co were greater in zebu cattle at the onset of the trial but became similar to crossbred cattle towards the end of the trial (P < 0.001). Liver Cu (P = 0.002) and Fe (P 0.001), kidney Se (P < 0.001), and kidney and cardiac muscle Co (P 0.001) concentrations were greater in zebu than in crossbred cattle. Increased hepatic mRNA expression of the Cu regulatory genes Atp7b, Ctr1 (P = 0.02), CCS (P = 0.03), and Cox17 (P = 0.009) and Cu-related Sod1 (P = 0.001) as well as the Se-related Gpx1 (P 0.001) were greater in zebu than in crossbred cattle. However, duodenal mRNA expression of DAO (P = 0.8) and Mt1a (P = 0.2) and aortic expression of LOX (P = 0.8) were not different. Both the differences in Cu status indices (plasma and liver concentrations) and hepatic mRNA expression of Cu regulatory genes point to the possibility of a more efficient use of dietary Cu in B. indicus as compared to B. taurus × B. indicus cattle resulting in greater sensitivity to Cu deficiency in B. taurus crossbred cattle. initial plasma Cu concentrations just below the threshold value for deficiency, whereas crossbred cattle gradually became severely Cu deficient over time (P < 0.001). In contrast, plasma Zn and Co were greater in zebu cattle at the onset of the trial but became similar to crossbred cattle towards the end of the trial (P < 0.001). Liver Cu (P = 0.002) and Fe (P ≤ 0.001), kidney Se (P < 0.001), and kidney and cardiac muscle Co (P ≤ 0.001) concentrations were greater in zebu than in crossbred cattle. Increased hepatic mRNA expression of the Cu regulatory genes Atp7b, Ctr1 (P = 0.02), CCS (P = 0.03), and Cox17 (P = 0.009) and Cu-related Sod1 (P = 0.001) as well as the Se-related Gpx1 (P ≤ 0.001) were greater in zebu than in crossbred cattle. However, duodenal mRNA expression of DAO (P = 0.8) and Mt1a (P = 0.2) and aortic expression of LOX (P = 0.8) were not different. Both the differences in Cu status indices (plasma and liver concentrations) and hepatic mRNA ...

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“…Por outro lado, se for deficiente, a sua concentração nos nódulos é maior do que nas folhas (Brodrick e Giller, 1991). Em geral, o Mo se encontra na planta dentro de um intervalo que varia de 0,1 a 30,0 mg kg -1 , porém, as concentrações comumentes encontradas estão na faixa de 0,1 a 0,2 mg kg -1 (Haque, 1987 (Mafra et al, 1974). Em geral, as maiores quantidades de nutrientes são encontradas nas plantas cultivadas em épocas chuvosas, e dependem ainda da adubação aplicada e do nível de fertilidade do solo (Oliveira e Thung, 1988).…”

Section: Introductionunclassified

Parcelamento e época de aplicação foliar do molibdênio na composição mineral das folhas do feijoeiro

Pires¹,

Araújo²,

Leite³

et al. 2005

Acta Sci. Agron.

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Copper in soils, plants, and ruminant animal nutrition with special reference to sub‐Saharan Africa

Cited by 10 publications

References 93 publications

Structure and Bonding of Cu(II)–Glutamate Complexes at the γ-Al2O3–Water Interface

Structure and Bonding of Cu(II)–Glutamate Complexes at the γ-Al2O3–Water Interface

A disparate trace element metabolism in zebu (Bos indicus) and crossbred (Bos indicus × Bos taurus) cattle in response to a copper-deficient diet1

Parcelamento e época de aplicação foliar do molibdênio na composição mineral das folhas do feijoeiro

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