Glutathione and phytochelatin contents in tomato plants exposed to cadmium

Autor:	Mohamed Habib Ghorbel, Fatma Jemal, Chamseddine Mediouni, W. Ben Ammar, B. Tray
Rok vydání:	2008
Předmět:	Cadmium Growth medium biology food and beverages chemistry.chemical_element Plant Science Glutathione Horticulture biology.organism_classification Lycopersicon chemistry.chemical_compound chemistry Dry weight Botany Buthionine sulfoximine Phytochelatin
Zdroj:	Biologia plantarum. 52:314-320
ISSN:	1573-8264 0006-3134
DOI:	10.1007/s10535-008-0065-9
Popis:	The effect of cadmium on growth and contents of glutathione (GSH) and phytochelatins (PCs) were investigated in roots and leaves of tomato plants (Lycopersicon esculentum Mill. cv. 63/5 F1). The accumulation of Cd increased with external Cd concentrations and was considerably higher in roots than in leaves. Dry mass production decreased under Cd treatment especially in leaves. In both roots and leaves, exposure to Cd caused an appreciable decline in GSH contents and increase in PCs synthesis proportional to Cd concentrations in the growth medium. At the same Cd concentration, PCs production was higher in roots than in leaves. The implication of glutathione in PC synthesis was strongly suggested by the use of buthionine sulfoximine (BSO). The major fraction of Cd accumulated by tomato roots was in the form of a Cd-PCs complex.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b11e89d848fb9096958b388a12861c7d https://doi.org/10.1007/s10535-008-0065-9 Zobrazit plný text záznamu Full text from SpringerLink