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Article: Availability of ferrocyanide and ferricyanide complexes as a nitrogen source to cyanogenic plants

TitleAvailability of ferrocyanide and ferricyanide complexes as a nitrogen source to cyanogenic plants
Authors
Issue Date2008
PublisherSpringer New York LLC. The Journal's web site is located at http://link.springer.de/link/service/journals/00244
Citation
Archives Of Environmental Contamination And Toxicology, 2008, v. 55 n. 2, p. 229-237 How to Cite?
AbstractThe effects of additional nitrogen on the toxicity and removal of ferrocyanide and ferricyanide by cyanogenic plants were investigated. Maize (Zea mays L. var. ZN 304) seedlings were grown in the hydroponic solutions with or without additional nitrogen, and amended with either potassium ferrocyanide or potassium ferricyanide at 25.0 ± 0.5°C for 144 h. Various physiological parameters were monitored to determine the responses of the plant seedlings to the exposure of these two chemicals. A remarkable decrease in transpiration rate, biomass, shoot length, chlorophyll contents, and soluble proteins was evident for maize seedlings grown in the N-free hydroponic solutions spiked with either ferrocyanide or ferricyanide (P < 0.01), but slight changes were observed in the selective parameters in the N-containing hydroponic solutions spiked with either of these chemicals (P > 0.05). A higher removal of ferrocyanide than ferricyanide was registered in the N-free hydroponic solutions, but more ferricyanide than ferrocyanide was removed by maize grown in the N-containing nutrient solutions (P < 0.01). Although roots of maize accumulated iron cyanides, more cyanide was recovered in plant materials of those grown in the N-containing hydroponic solutions than the N-free nutrient solutions (P < 0.05). Mass balance analysis indicated that the majority of the iron cyanides removed from solution was assimilated by maize and additional nitrogen had a significantly negative impact on the uptake of both chemicals (P < 0.01). Results of this study suggest that uptake and assimilation mechanisms for ferrocyanide and ferricyanide might be quite different in maize and the application of the external nitrogen has a substantial influence on the removal of both iron cyanides by plants. None of the iron cyanide complexes can serve as a sole nitrogen source to support maize growth. © 2008 Springer Science+Business Media, LLC.
Persistent Identifierhttp://hdl.handle.net/10722/60678
ISSN
2015 Impact Factor: 2.039
2015 SCImago Journal Rankings: 0.846
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorYu, XZen_HK
dc.contributor.authorGu, JDen_HK
dc.contributor.authorLi, TPen_HK
dc.date.accessioned2010-05-31T04:16:21Z-
dc.date.available2010-05-31T04:16:21Z-
dc.date.issued2008en_HK
dc.identifier.citationArchives Of Environmental Contamination And Toxicology, 2008, v. 55 n. 2, p. 229-237en_HK
dc.identifier.issn0090-4341en_HK
dc.identifier.urihttp://hdl.handle.net/10722/60678-
dc.description.abstractThe effects of additional nitrogen on the toxicity and removal of ferrocyanide and ferricyanide by cyanogenic plants were investigated. Maize (Zea mays L. var. ZN 304) seedlings were grown in the hydroponic solutions with or without additional nitrogen, and amended with either potassium ferrocyanide or potassium ferricyanide at 25.0 ± 0.5°C for 144 h. Various physiological parameters were monitored to determine the responses of the plant seedlings to the exposure of these two chemicals. A remarkable decrease in transpiration rate, biomass, shoot length, chlorophyll contents, and soluble proteins was evident for maize seedlings grown in the N-free hydroponic solutions spiked with either ferrocyanide or ferricyanide (P < 0.01), but slight changes were observed in the selective parameters in the N-containing hydroponic solutions spiked with either of these chemicals (P > 0.05). A higher removal of ferrocyanide than ferricyanide was registered in the N-free hydroponic solutions, but more ferricyanide than ferrocyanide was removed by maize grown in the N-containing nutrient solutions (P < 0.01). Although roots of maize accumulated iron cyanides, more cyanide was recovered in plant materials of those grown in the N-containing hydroponic solutions than the N-free nutrient solutions (P < 0.05). Mass balance analysis indicated that the majority of the iron cyanides removed from solution was assimilated by maize and additional nitrogen had a significantly negative impact on the uptake of both chemicals (P < 0.01). Results of this study suggest that uptake and assimilation mechanisms for ferrocyanide and ferricyanide might be quite different in maize and the application of the external nitrogen has a substantial influence on the removal of both iron cyanides by plants. None of the iron cyanide complexes can serve as a sole nitrogen source to support maize growth. © 2008 Springer Science+Business Media, LLC.en_HK
dc.languageengen_HK
dc.publisherSpringer New York LLC. The Journal's web site is located at http://link.springer.de/link/service/journals/00244en_HK
dc.relation.ispartofArchives of Environmental Contamination and Toxicologyen_HK
dc.titleAvailability of ferrocyanide and ferricyanide complexes as a nitrogen source to cyanogenic plantsen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0090-4341&volume=55&spage=229&epage=237&date=2008&atitle=Availability+of+ferrocyanide+and+ferricyanide+complexes+as+a+nitrogen+source+to+cyanogenic+plantsen_HK
dc.identifier.emailGu, JD: jdgu@hkucc.hku.hken_HK
dc.identifier.authorityGu, JD=rp00701en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1007/s00244-007-9101-6en_HK
dc.identifier.pmid18180862en_HK
dc.identifier.scopuseid_2-s2.0-45849085399en_HK
dc.identifier.hkuros160877en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-45849085399&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume55en_HK
dc.identifier.issue2en_HK
dc.identifier.spage229en_HK
dc.identifier.epage237en_HK
dc.identifier.isiWOS:000256926900008-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridYu, XZ=24449490500en_HK
dc.identifier.scopusauthoridGu, JD=7403129601en_HK
dc.identifier.scopusauthoridLi, TP=16316955700en_HK

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