NDLI: Matricaria chamomilla is not a hyperaccumulator, but tolerant to cadmium stress

Content Provider	Springer Nature Link
Author	Kováčik, Jozef Tomko, Jaroslav Bačkor, Martin Repčák, Miroslav
Copyright Year	2006
Abstract	The influence of low (3 µM) and high (60 and 120 µM) cadmium (Cd) concentrations were studied on selected aspects of metabolism in 4-week-old chamomile (Matricaria chamomilla L.) plants. After 10 days’ exposure, dry mass accumulation and nitrogen content were not significantly altered under any of the levels of Cd. However, there was a significant decline in chlorophyll and water content in the leaves. Among coumarin-related compounds, herniarin was not affected by Cd, while its precursors (Z)- and (E)-2-β-d-glucopyranosyloxy-4-methoxycinnamic acids (GMCAs) increased significantly at all the levels of Cd tested. Cd did not have any effect on umbelliferone, a stress metabolite of chamomile. Lipid peroxidation was also not affected by even 120 µM Cd. Cd accumulation was approximately seven- (60 µM Cd treatment) to eleven- (120 µM Cd treatment) fold higher in the roots than that in the leaves. At high concentrations, it stimulated potassium leakage from the roots, while at the lowest concentration it could stimulate potassium uptake. The results supported the hypothesis that metabolism was altered only slightly under high Cd stress, indicating that chamomile is tolerant to this metal. Preferential Cd accumulation in the roots indicated that chamomile could not be classified as a hyperaccumulator and, therefore, it is unsuitable for phytoremediation.
Starting Page	239
Ending Page	247
Page Count	9
File Format	PDF
ISSN	01676903
Journal	Plant Growth Regulation
Volume Number	50
Issue Number	2-3
e-ISSN	15735087
Language	English
Publisher	Kluwer Academic Publishers
Publisher Date	2006-10-20
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Cadmium Coumarins Malondialdehyde Matricaria chamomilla Lipid peroxidation Potassium leakage Plant Physiology
Content Type	Text
Resource Type	Article
Subject	Physiology Plant Science Agronomy and Crop Science

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