File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Biotransformation and metabolic response of cyanide in weeping willows

TitleBiotransformation and metabolic response of cyanide in weeping willows
Authors
KeywordsCyanide
Enzyme
Oxidative stress
Phytoremediation
Removal
Willows
Issue Date2007
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/jhazmat
Citation
Journal Of Hazardous Materials, 2007, v. 147 n. 3, p. 838-844 How to Cite?
AbstractBiotransformation and metabolic responses of plants to cyanide were investigated using pre-rooted plants of weeping willows (Salix babylonica L.) grown hydroponically in growth chambers and treated with potassium cyanide. Various physiological parameters of the plants were monitored to determine toxicity from exogenous cyanide exposure. Cyanide doses used in this study showed growth-promoting effects on plants, exhibiting higher measured values of transpiration rates, chlorophyll contents and soluble protein contents compared with the non-treated control plants. Superoxide dismutases (SOD), catalase (CAT) and peroxidase (POD) activities in leaves showed a slight change to cyanide application in most treatments. Of all selected parameters, soluble proteins of plants were the most sensitive indicator to cyanide application. Almost all applied cyanide was removed from the hydroponic solution in the presence of plants in all treatment groups. Small amounts of cyanide were detected in the plant tissues. Recovery of cyanide in different compartments of plants varied significantly, root being the dominant sink for cyanide accumulation. Mass balance studies showed that >97% of the applied cyanide was metabolized during transport through weeping willows and the metabolic rates of cyanide by plants were linearly increased with increasing of cyanide applied in the growth media. Results from this study indicated that neither visible toxic symptom nor metabolic lesion was observed for the plants after 192 h of exposure, largely due to the well-established detoxification systems in willows. These findings suggest that cyanide has a beneficial role in plants and phytoremediation is a desirable solution of treating environmental sites contaminated with cyanide. © 2007 Elsevier B.V. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/89235
ISSN
2015 Impact Factor: 4.836
2015 SCImago Journal Rankings: 1.692
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorYu, XZen_HK
dc.contributor.authorGu, JDen_HK
dc.contributor.authorLiu, Sen_HK
dc.date.accessioned2010-09-06T09:54:15Z-
dc.date.available2010-09-06T09:54:15Z-
dc.date.issued2007en_HK
dc.identifier.citationJournal Of Hazardous Materials, 2007, v. 147 n. 3, p. 838-844en_HK
dc.identifier.issn0304-3894en_HK
dc.identifier.urihttp://hdl.handle.net/10722/89235-
dc.description.abstractBiotransformation and metabolic responses of plants to cyanide were investigated using pre-rooted plants of weeping willows (Salix babylonica L.) grown hydroponically in growth chambers and treated with potassium cyanide. Various physiological parameters of the plants were monitored to determine toxicity from exogenous cyanide exposure. Cyanide doses used in this study showed growth-promoting effects on plants, exhibiting higher measured values of transpiration rates, chlorophyll contents and soluble protein contents compared with the non-treated control plants. Superoxide dismutases (SOD), catalase (CAT) and peroxidase (POD) activities in leaves showed a slight change to cyanide application in most treatments. Of all selected parameters, soluble proteins of plants were the most sensitive indicator to cyanide application. Almost all applied cyanide was removed from the hydroponic solution in the presence of plants in all treatment groups. Small amounts of cyanide were detected in the plant tissues. Recovery of cyanide in different compartments of plants varied significantly, root being the dominant sink for cyanide accumulation. Mass balance studies showed that >97% of the applied cyanide was metabolized during transport through weeping willows and the metabolic rates of cyanide by plants were linearly increased with increasing of cyanide applied in the growth media. Results from this study indicated that neither visible toxic symptom nor metabolic lesion was observed for the plants after 192 h of exposure, largely due to the well-established detoxification systems in willows. These findings suggest that cyanide has a beneficial role in plants and phytoremediation is a desirable solution of treating environmental sites contaminated with cyanide. © 2007 Elsevier B.V. All rights reserved.en_HK
dc.languageengen_HK
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/jhazmaten_HK
dc.relation.ispartofJournal of Hazardous Materialsen_HK
dc.rightsJournal of Hazardous Materials . Copyright © Elsevier BV.en_HK
dc.subjectCyanideen_HK
dc.subjectEnzymeen_HK
dc.subjectOxidative stressen_HK
dc.subjectPhytoremediationen_HK
dc.subjectRemovalen_HK
dc.subjectWillowsen_HK
dc.titleBiotransformation and metabolic response of cyanide in weeping willowsen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0304-3894&volume=147&spage=838&epage=844&date=2007&atitle=Biotransformation+and+metabolic+response+of+cyanide+in+weeping+willowsen_HK
dc.identifier.emailGu, JD: jdgu@hkucc.hku.hken_HK
dc.identifier.authorityGu, JD=rp00701en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.jhazmat.2007.01.081en_HK
dc.identifier.pmid17335966-
dc.identifier.scopuseid_2-s2.0-34547169519en_HK
dc.identifier.hkuros141818en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-34547169519&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume147en_HK
dc.identifier.issue3en_HK
dc.identifier.spage838en_HK
dc.identifier.epage844en_HK
dc.identifier.isiWOS:000249262600020-
dc.publisher.placeNetherlandsen_HK
dc.identifier.scopusauthoridYu, XZ=24449490500en_HK
dc.identifier.scopusauthoridGu, JD=7403129601en_HK
dc.identifier.scopusauthoridLiu, S=37102479600en_HK

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats