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Digitale Medien

Biochemical studies on blossom end rot of tomatoes (1980)

DEKOCK, P. C. ; VAUGHAN, D. ; HALL, A. ; [weitere]

Oxford, UK : Blackwell Publishing Ltd

Physiologia plantarum 48 (1980), S. 0

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ISSN: 1399-3054

Quelle: Blackwell Publishing Journal Backfiles 1879-2005

Thema: Biologie

Notizen: The causes of cell wall necrosis in Blossom End Rot (BER) of tomatoes have been investigated by comparing enzyme activities in healthy and affected tissues in the cultivars Grenadier and Moneymaker. Changes in the mineral contents of the tomatoes were in accordance with those of calcium deficient tissues. The phenolic contents of the affected tissues were increased as also were caffeic and chlorogenic acids. Phenolase and peroxidase activities were higher in affected fruits white catalase activities were higher in healthy fruits. 14C-labelled leucine was incorporated into the proteins of the healthy fruits to the greatest extent but cell wall proteinbound hydroxyproline was greatest in affected fruits.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1111/j.1399-3054.1980.tb03261.x

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Digitale Medien

Mathematical basis and generalization of the Loo-Riegelman method for the determination ofin vivo drug absorption (1980)

Vaughan, D. P. ; Dennis, M.

Springer

Journal of pharmacokinetics and pharmacodynamics 8 (1980), S. 83-98

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ISSN: 1573-8744

Schlagwort(e): absorption ; Loo-Riegelman method ; deconvolution

Quelle: Springer Online Journal Archives 1860-2000

Thema: Chemie und Pharmazie

Notizen: Abstract A general numerical deconvolution method is derived for the determination of in vivodrug input functions. The derivation is based on linear interpolation of observed drug concentrations and deconvolution of the resulting trapezoidal function. Derived in vivoinput functions are discontinuous. A general expression for the cumulative drug input is also derived. The latter expression is a generalization of the Loo-Riegelman equations. This deconvolution method gives similar results to the “point-area” deconvolution method when deriving in vivodrug input functions.