Quantitative Relationship between Phytochelatin Accumulation and Growth Inhibition during Prolonged Exposure to Cadmium in Silene vulgaris.

F.E.C. Sneller; E.C.M. Noordover; W.M. ten Bookum; H. Schat; J.J.M. Bedaux; J.A.C. Verkley

doi:10.1023/A:1026440213649

Quantitative Relationship between Phytochelatin Accumulation and Growth Inhibition during Prolonged Exposure to Cadmium in Silene vulgaris.

F.E.C. Sneller, E.C.M. Noordover, W.M. ten Bookum, H. Schat, J.J.M. Bedaux, J.A.C. Verkley

Research output: Contribution to Journal › Article › Academic › peer-review

Abstract

Phytochelatins (PCs) are known to detoxify heavy metals in plants. This study aimed to investigate the possibility of using PCs as a biomarker for chronic Cd toxicity in Silene vulgaris. For this purpose, the effects of Cd on growth rate, related to plant weight, and the PC concentrations were recorded throughout the bigger part of the vegetative phase. The lowest concentrations of Cd used, 1 and 2 μM, inhibited plant growth rates by 30 and 50%, respectively, independent of the weight of the exposed plants. Above an exposure concentration of 2 μM Cd, the toxic effect increased with plant weight. At 3.5 μM Cd, the plant growth rates were inhibited up to 90%. Further increases of the exposure concentration did not produce additional inhibition. Root PC concentrations correlated with growth inhibition only at the lower Cd concentrations, i.e. up to 2 μM Cd. Above this concentration the correlation was lost.

Original language	English
Pages (from-to)	167-175
Journal	Ecotoxicology
Volume	8
DOIs	https://doi.org/10.1023/A:1026440213649
Publication status	Published - 1999

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@article{8b5c936779a9462f98679090b009770b,

title = "Quantitative Relationship between Phytochelatin Accumulation and Growth Inhibition during Prolonged Exposure to Cadmium in Silene vulgaris.",

abstract = "Phytochelatins (PCs) are known to detoxify heavy metals in plants. This study aimed to investigate the possibility of using PCs as a biomarker for chronic Cd toxicity in Silene vulgaris. For this purpose, the effects of Cd on growth rate, related to plant weight, and the PC concentrations were recorded throughout the bigger part of the vegetative phase. The lowest concentrations of Cd used, 1 and 2 μM, inhibited plant growth rates by 30 and 50%, respectively, independent of the weight of the exposed plants. Above an exposure concentration of 2 μM Cd, the toxic effect increased with plant weight. At 3.5 μM Cd, the plant growth rates were inhibited up to 90%. Further increases of the exposure concentration did not produce additional inhibition. Root PC concentrations correlated with growth inhibition only at the lower Cd concentrations, i.e. up to 2 μM Cd. Above this concentration the correlation was lost.",

author = "F.E.C. Sneller and E.C.M. Noordover and {ten Bookum}, W.M. and H. Schat and J.J.M. Bedaux and J.A.C. Verkley",

year = "1999",

doi = "10.1023/A:1026440213649",

language = "English",

volume = "8",

pages = "167--175",

journal = "Ecotoxicology",

issn = "0963-9292",

publisher = "Springer Netherlands",

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TY - JOUR

T1 - Quantitative Relationship between Phytochelatin Accumulation and Growth Inhibition during Prolonged Exposure to Cadmium in Silene vulgaris.

AU - Sneller, F.E.C.

AU - Noordover, E.C.M.

AU - ten Bookum, W.M.

AU - Schat, H.

AU - Bedaux, J.J.M.

AU - Verkley, J.A.C.

PY - 1999

Y1 - 1999

N2 - Phytochelatins (PCs) are known to detoxify heavy metals in plants. This study aimed to investigate the possibility of using PCs as a biomarker for chronic Cd toxicity in Silene vulgaris. For this purpose, the effects of Cd on growth rate, related to plant weight, and the PC concentrations were recorded throughout the bigger part of the vegetative phase. The lowest concentrations of Cd used, 1 and 2 μM, inhibited plant growth rates by 30 and 50%, respectively, independent of the weight of the exposed plants. Above an exposure concentration of 2 μM Cd, the toxic effect increased with plant weight. At 3.5 μM Cd, the plant growth rates were inhibited up to 90%. Further increases of the exposure concentration did not produce additional inhibition. Root PC concentrations correlated with growth inhibition only at the lower Cd concentrations, i.e. up to 2 μM Cd. Above this concentration the correlation was lost.

AB - Phytochelatins (PCs) are known to detoxify heavy metals in plants. This study aimed to investigate the possibility of using PCs as a biomarker for chronic Cd toxicity in Silene vulgaris. For this purpose, the effects of Cd on growth rate, related to plant weight, and the PC concentrations were recorded throughout the bigger part of the vegetative phase. The lowest concentrations of Cd used, 1 and 2 μM, inhibited plant growth rates by 30 and 50%, respectively, independent of the weight of the exposed plants. Above an exposure concentration of 2 μM Cd, the toxic effect increased with plant weight. At 3.5 μM Cd, the plant growth rates were inhibited up to 90%. Further increases of the exposure concentration did not produce additional inhibition. Root PC concentrations correlated with growth inhibition only at the lower Cd concentrations, i.e. up to 2 μM Cd. Above this concentration the correlation was lost.

U2 - 10.1023/A:1026440213649

DO - 10.1023/A:1026440213649

M3 - Article

SN - 0963-9292

VL - 8

SP - 167

EP - 175

JO - Ecotoxicology

JF - Ecotoxicology

ER -

Quantitative Relationship between Phytochelatin Accumulation and Growth Inhibition during Prolonged Exposure to Cadmium in Silene vulgaris.

Abstract

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