The effect of temperature on the rate of cyanide metabolism of two woody plants

Yu, Xiao-Zhang; Trapp, Stefan; Zhou, Puhua; Hu, Hao

doi:10.1016/j.chemosphere.2004.12.020

Cited by 36 publications

(20 citation statements)

References 17 publications

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“…In the temperature range from 11 to 32 0 C, a value for Q 10 of 2.09 was found (Yu et al, 2005c). This increase of cyanide removal with temperature could be explained half by an increase of the transport kinetics (due to a lower cuticle permeability at higher temperature), and half by an increase of the activity of the enzymes that metabolize cyanide.…”

Section: Discussionmentioning

confidence: 75%

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Effect of Temperature on the Uptake and Metabolism of Cyanide by Weeping Willows

Trapp

Zhou

et al. 2007

International Journal of Phytoremediation

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Section: Discussionmentioning

confidence: 75%

“…The influence of temperature on the cyanide metabolism rate of detached leaves was determined in closed bottles (Yu et al, 2005c). For Chinese elder, the highest cyanide removal rate was found at 30 °C with a value of 12.6 mg CN/(kg·h), which was over 3-fold higher than at 11 °C.…”

Section: Introductionmentioning

confidence: 99%

Effect of Temperature on the Uptake and Metabolism of Cyanide by Weeping Willows

Trapp

Zhou

et al. 2007

International Journal of Phytoremediation

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“…When exposed to light, the decomposition of complexed cyanide to free cyanide was also reported by Kjeldsen (1999). Phytoremediation of cyanide has been carefully studied for a number of plants from three different continents and climate zones (Trapp and Christiansen 2003;Ebbs et al 2003;Larsen et al 2004;Yu et al 2004Yu et al , 2005a. The main physiological role of CAS, which was exclusively located in mitochondria, was the detoxification of the toxic cyanide (Hendrickson and Conn 1969).…”

Section: Introductionmentioning

confidence: 98%

The potential for phytoremediation of iron cyanide complex by willows

Zhou

Yang

2006

Ecotoxicology

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Hybrid willows (Salix matsudana Koidz x Salix alba L.), weeping willows (Salix babylonica L.) and hankow willows (Salix matsudana Koidz) were exposed to potassium ferrocyanide to determine the potential of these plants to extract, transport and metabolize this iron cyanide complex. Young rooted cuttings were grown in hydroponic solution at 24.0 +/- 0.5 degrees C for 144 h. Ferrocyanide in solution, air, and aerial tissues of plants was analyzed spectrophotometrically. Uptake of ferrocyanide from the aqueous solution by plants was evident for all treatments and varied with plant species, ranging from 8.64 to 15.67% of initial mass. The uptake processes observed from hydroponic solution showed exponential disappearance kinetics. Very little amounts of the applied ferrocyanide were detected in all parts of plant materials, confirming passage of ferrocyanide through the plants. No ferrocyanide in air was found due to plant transpiration. Mass balance analysis showed that a large fraction of the reduction of initial mass in hydroponic solution was metabolized during transport within the plant materials. The difference in the metabolic rate of ferrocyanide between the three plant species was comparably small, indicating transport of ferrocyanide from hydroponic solution to plant materials and further transport within plant materials was a limiting step for assimilating this iron cyanide complex. In conclusion, phytoremediation of ferrocyanide by the plants tested in this study has potential field application.

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“…In this study, the Q 10 values were determined to be 1.67-1.97, which are similar to the results obtained earlier. The Q 10 values for Chinese elder (Sambucus chinensis L.) and weeping willows (S. babylonica L.) exposed to free CN were 1.84 and 2.09, respectively (Yu et al 2005), while a relative lower Q 10 value of 1.46 was found in the test with intact weeping willows during the removal of free CN (Yu et al 2007). Compared to the Q 10 value obtained in this study, a higher Q 10 value of 2.75 was found in the treatment with maize seedlings (Z. mays L. var.…”

Section: Effect Of Inhibitors On Ferricyanide Uptake By Detached Rootsmentioning

confidence: 94%

Effects of inhibitors on ferricyanide uptake and assimilation by plants

Zhang

Peng

2012

Int. J. Environ. Sci. Technol.

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Effects of inhibitors on uptake and assimilation of ferricyanide by different plants were investigated. Detached roots of plants were kept in a closed-dark hydroponic system with ferricyanide solution amended with various inhibitors. Dissociation of ferricyanide to free cyanide and iron in solution was negligible. The application of inhibitors affected both botanical assimilation and uptake of ferricyanide. Of the inhibitors tested, silver nitrate showed a significantly inhibitory effect on ferricyanide uptake by rice, soybean and maize (P \ 0.01), while a negligible effect was found in willows spiked with the same inhibitor (P [ 0.05). However, lanthanum chloride showed the most severe effect on botanical assimilation of ferricyanide by maize and rice (P \ 0.01), whereas silver nitrate and tetraethylammonium chloride were the most sensitive inhibitors to soybean and willows, respectively (P \ 0.01). Botanical assimilation of ferricyanide was observed positively in responses to temperatures, in which maize was more susceptible than other selected plants. In conclusion, application of inhibitors has a substantial influence on the uptake and assimilation of ferricyanide by plants, and the inhibitory efficiency is highly dependent on the species of inhibitors applied.

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The effect of temperature on the rate of cyanide metabolism of two woody plants

Cited by 36 publications

References 17 publications

Effect of Temperature on the Uptake and Metabolism of Cyanide by Weeping Willows

Effect of Temperature on the Uptake and Metabolism of Cyanide by Weeping Willows

The potential for phytoremediation of iron cyanide complex by willows

Effects of inhibitors on ferricyanide uptake and assimilation by plants

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