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Phytochelatin synthesis in maize seedlings in response to excess zinc

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Biologia Plantarum

Abstract

Buthionine sulfoximine (BSO) specifically inhibits γ-glutamylcysteine synthetase and decreases a cellular level of glutathione (GSH) in maize seedling roots. Exogenous GSH restores Zn-phytochelatins synthesis in BSO-treated maize plants.

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Abbreviations

BSO:

buthionine sulfoximine

(γ-ECG):

glutathione or GSH

(γ-EC)nG:

(γ-glutamyl-cysteinyl)-glycines or phytochelatins or PCs

(γ-EC)n :

(γ-glutamyl-cysteines)

(γ-EC)nS:

(γ-glutamyl-cysteinyl)-serines

(γ-EC)n-ΒA:

(γ-glutamyl-cysteinyl)-Β-alanines

(γ-EC)nE:

(γ-glutamyl-cysteinyl)-glutamic acid

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Authors and Affiliations

  1. Department of Plant Physiology, Maria Curie-Sklodowska University, Akademicka 19, 20-033, Lublin, Poland

    A. Tukendorf

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  1. A. Tukendorf
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Tukendorf, A. Phytochelatin synthesis in maize seedlings in response to excess zinc. Biol Plant 38, 137–140 (1996). https://doi.org/10.1007/BF02879648

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  • DOI: https://doi.org/10.1007/BF02879648

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