Trade-off between cadmium tolerance and relative growth rate in 10 grass species

Sabreen, Shamima; Sugiyama, Shu-ichi

doi:10.1016/j.envexpbot.2007.10.019

Cited by 30 publications

(20 citation statements)

References 29 publications

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“…citrate and oxalate) which sequester metal ions to form non toxic compounds (Kanoun-Boulé et al 2009;Murphy et al 1999). On the other hand, tolerance to Ni (for concentration B0.5 mg/l) may be explained by the low metal accumulation in plant biomass suggesting a partial Ni exclusion in L. gibba (Rabier et al 2007;Sabreen and Sugiyama 2008). The bioconcentration factor is more significant than the amount accumulated in plants since it indicates the plant's ability to accumulate trace elements relative to their concentration in the external nutrient solution (Marin and Oron 2007).…”

Section: Discussionmentioning

confidence: 97%

“…Kanoun-Boulé et al (2009) reported in the tolerance of duckweed to copper that the release of organic anions might be involved in the protection of plants by chelating the metal ions in the rhizosphere to form non toxic complexes. However, according to Sabreen and Sugiyama (2008), tolerant populations can be characterized by a lower metal accumulation than the sensitive one.…”

Section: Introductionmentioning

confidence: 98%

“…Several plants are able to accumulate in their tissues metal elements without showing any signs of toxicity (Kamal et al 2004;Sabreen and Sugiyama 2008;Zayed et al 1998). This natural accumulation is related with the resistance which represents response of plants to metal stress conditions.…”

Section: Introductionmentioning

confidence: 99%

“…According to Papazoglou et al (2005), metal resistance can be based on either avoidance or tolerance mechanisms. Avoidance represents the cell protection against the metal whereas tolerance is the ability of cells to protect themselves against injury caused by the metal (Sabreen and Sugiyama 2008). Kanoun-Boulé et al (2009) reported in the tolerance of duckweed to copper that the release of organic anions might be involved in the protection of plants by chelating the metal ions in the rhizosphere to form non toxic complexes.…”

Section: Introductionmentioning

confidence: 99%

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Growth response of the duckweed Lemna gibba L. to copper and nickel phytoaccumulation

Khellaf

Zerdaoui

2010

Ecotoxicology

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To assess the tolerance and phytoaccumulation ability of the duckweed Lemna gibba L. to copper (Cu) and nickel (Ni), the plants were exposed to different concentrations of Cu and Ni (0.1-2.0 mg/l) under laboratory conditions. The results showed that Cu and Ni were tolerated by L. gibba at concentrations ≤0.3 and ≤0.5 mg/l, respectively. However, plant growth decreased by 50% (I(50)) when the medium contained 0.45 mg Cu/l or 0.75 mg Ni/l. The observed LCI (lowest concentration causing complete inhibition) were 0.5 and 1.0 mg/l respectively in the presence of Cu and Ni. Results from metal analysis in plant biomass revealed a high accumulation of Cu (1.5 mg g(-1) DW), a low accumulation of Ni (0.5 mg g(-1) DW) within the plants and a corresponding decrease of metals in the water. The removal percentage of Cu was about 60-80%. We conclude that the duckweed L. gibba L. showed a higher accumulation potential for Cu from polluted water than Ni after 4 days of exposure.

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Section: Discussionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Growth response of the duckweed Lemna gibba L. to copper and nickel phytoaccumulation

Khellaf

Zerdaoui

2010

Ecotoxicology

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“…It is highly reactive and inactivates various enzymatic processes. Many studies indicated inhibition of plant growth (Maksymiec and Baszyński 1996, Maksymiec 1997, Sobkowiak and Dekert 2003, Guo et al 2007, Sabreen and Sugiyama 2008. The exact mechanism of cadmium-induced growth inhibition is still unclear.…”

Section: Introductionmentioning

confidence: 99%

Effects of jasmonate and some other signalling factors on bean and onion growth during the initial phase of cadmium action

Maksymiec¹

2011

Biologia plant.

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Short-time direct and indirect effects of 25 µM Cd on the growth of dicotyledon (Phaseolus coccineus) and monocotyledon (Allium cepa) plants were investigated in the presence of inhibitors of ethylene synthesis, NADPH oxidase, and the octadecanoid pathway. Only 5 min-long action of Cd was enough for inhibition of growth in bean roots, but its recovery time was extended to several days. After 7 h treatment, Cd was significantly accumulated in bean roots, but maximum H 2 O 2 accumulation was seen after 1 h. Cd-induced H 2 O 2 accumulation decreased especially after addition of ethylene inhibitor silver thiosulphate (STS). Low Cd accumulation and high growth inhibition were observed also in bean leaves and in A. cepa roots. The inhibitors of the octadecanoid pathway greatly weakened the inhibitory effect of Cd in P. coccineus roots, while no significant effect was observed in A. cepa. NADPH oxidase and ethylene blockade reversed (in the case of bean plants and indirectly treated A. cepa plants) or significantly diminished Cd action. Cd-induced growth inhibition of P. coccineus leaves was also alleviated by most inhibitors of the jasmonate pathway and by STS. These results indicate that Cd may have indirect and direct effects on growth processes.

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Cadmium contamination of soil and crops is affected by intercropping and rotation systems in the lower reaches of the Minjiang River in south-western China

Liu

et al. 2015

Environ Geochem Health

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Cadmium (Cd) accumulation and pollution in arable soils are particularly serious in the lower reaches of the Minjiang River in southwest of China. In this study, the remediation efficiency of Cd contamination in arable soils, the distribution pattern of Cd concentration in crops, and the food safety to humans of three typical cropping systems (S1: maize + sweet potato—Chinese cabbage, S2: maize + ginger—stem mustard, and S3: rice) were investigated and evaluated. After 1-year rotation, the percentage of Cd extracted by crops from the plough soil layer was observed in three system fields with the trend of S1 (2.30 %) > S2 (1.16 %) > S3 (0.21 %) and Cd extraction amount in crops was maximum in sweet potato, then in maize. The same kind of crop had the same pattern of Cd distribution in organs, and the edible parts generally accumulated less Cd amount than the inedible parts. Further, the grain crops were found to possibly be suitable one for using as phytoaccumulators of Cd contamination for farmlands. Direct consumption of these crops from the three systems would pose a high health risk to local inhabitants since it would result in the monthly intake of Cd (247 μg kg−1 body weight) being nearly 10 times higher than the recommended tolerable monthly intake (RTMI) (25 μg kg−1 body weight), resulting mainly from the consumption of vegetables rather than the grains, which would be potentially reduced by these foods being consumed by livestock firstly.

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Trade-off between cadmium tolerance and relative growth rate in 10 grass species

Cited by 30 publications

References 29 publications

Growth response of the duckweed Lemna gibba L. to copper and nickel phytoaccumulation

Growth response of the duckweed Lemna gibba L. to copper and nickel phytoaccumulation

Effects of jasmonate and some other signalling factors on bean and onion growth during the initial phase of cadmium action

Cadmium contamination of soil and crops is affected by intercropping and rotation systems in the lower reaches of the Minjiang River in south-western China

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