Impact of soil quality on elemental uptake by, and distribution in, Colocasia esculenta (Amadumbe), an edible root

References

• John , D. A. and Leventhal , J. S. 1995 . “ Bioavailability in metals ” . In Preliminary Compilation of Geoenvironmental Mineral Deposit Models , Edited by: du Bray , E.A. Denver, CO, USA : U.S. Geological Survey . Open-File Rep. 95–831, 10–18
   Google Scholar
• Davis , A. , Ruby , M. V. and Bergstrom , P. D. 1994 . Factors controlling lead bioavailability in the Butte mining district, Montana, USA . Environ. Geochem. and Health. , 3/4 : 147 – 157 .
   Google Scholar
• Imtiaz , M. , Alloway , B. J. , Shar , K. H. , Siddiqui , S. H. , Memon , M. Y. , Aslam , M. and Khan , P. 2003 . Zinc nutrition of wheat: II Interaction of Zn with other trace elements . Asian J. Plant. Sc. , 2 ( 2 ) : 156 – 160 .
   Google Scholar
• Moodley , R. , Kindness , A. and Jonnalagadda , S. B. 2007 . Elemental composition and chemical characteristics of five edible nuts (Almond, Brazil, Pecan, Macadamia and Walnut) consumed in Southern Africa . J. Environ. Sci. Health, Part B , 42 : 585 – 591 .
   PubMed Web of Science ®Google Scholar
• www.fruitsandveggiesmatter.gov/month/tubers.html. Vegetable of the month: Tubers. Accessed October 2009
   Google Scholar
• Brown , A. C. and Valiere , A. M.S. 2004 . Probiotics and medical nutrition therapy . Nutr. Clin. Care. , 7 ( 2 ) : 56 – 68 .
   PubMedGoogle Scholar
• Huang , A. S. , Titchenal , C. A. and Meilleur , B. A. 2000 . Nutrient Composition of Taro Corms and Breadfruit . J. Food Composition and Analysis , 13 : 859 – 864 .
   Google Scholar
• www.nutritiondata.com/facts/vegetables-and-vegetable-products/ 2673/2, accessed October 2009
   Google Scholar
• www.ehow.com/about_5401477_nutritional-value-taro-root.htmlm. Nutritional value of taro root. Accessed October 2009
   Google Scholar
• Anton , A. and Mathe-Gaspar , G. 2005 . Factors affecting heavy metal uptake in plant selection for phytoremediation . Z. Naturforschung , 60c : 244 – 246 .
   Google Scholar
• Crommentuijn , T. , Polder , M. D. and Van de Plassche , E.J. 2000 . “ Maximum permissible concentrations and negligible concentrations for metals: taking background concentrations into account RIVM–report 601501001 ” . Bilthoven, Netherlands : National Institute of Public Health and the Environment .
   Google Scholar
• Lock , K. and Janssen , C. R. 2001 . Zinc and cadmium body burdens in terrestrial oligochaetes: use and significance in environmental risk assessment . Environ Toxicol Chem , 20 : 2067 – 2072 .
   Google Scholar
• McGrath , D. , Zhang , C. and Carton , O. T. 2004 . Geostatistical analyses and hazard assessment on soil lead in Silverman area, Ireland . Environ. Pollution. , 127 : 239 – 248 .
   PubMed Web of Science ®Google Scholar
• Timperly , M. H. , Brooks , R. R. and Perterson , P. J. 1937 . The significance of essential and non-essential trace elements in plants in relation to biogeochemical prospecting . J. Appl. Ecology , 7 : 429 – 439 .
   Google Scholar
• Huang , C. C. , Chen , W. C. , Chiun , C. and Wang , R. 2007 . Comparison of Taiwan paddy and upland-cultivated taro (Colocasia esculenta L.) cultivars for nutritive values . Food Chem. , 102 : 250 – 256 .
   Web of Science ®Google Scholar
• Boss , C. B. and Fredeen , K. J. 1997 . “ Concepts ” . In Instrumentation and Techniques in Inductively Coupled Plasma Optical Emission Spectroscopy , USA : Perkin Elmer .
   Google Scholar
• 2009 . Anton Paar, Graz Austria Part No. B301B02, in Anton Paar Product Information . Graz, Austria, October
   Google Scholar
• McAlister , J. J. and Smith , B. J. 1999 . Selectivity of Ammonium Acetate, Hydroxylamine Hydrochloride, and Oxalate/Ascorbic Acid Solutions for the Speciation of Fe, Mn, Zn, Cu, Ni, and Al in Early Tertiary Paleosols . Microchem. J. , 63 ( 3 ) : 415 – 426 .
   Google Scholar
• South African Standard Specification 241: Drinking water; South African Bureau of Standards (SABS) . 2001 . Pretoria , Gr7, ISBN 0-626–129087
   Google Scholar
• Govender , A. , Kindness , A and Jonnalagadda , S. B. 2009 . Impact of soil quality on elemental uptake by Zingiber officinal (ginger rhizome) . Internat. J. Environ. Anal. Chem. , 89 ( 5 ) : 367 – 382 .
   Web of Science ®Google Scholar
• Walkley , A. and Black , I. A. 1934 . An examination of Degtjareff method for determining soil organic matter and a proposed modification of the chromic acid titration method . Soil. Sci. , 37 : 29 – 37 .
   Web of Science ®Google Scholar
• Chapman , H. D. 1965 . “ Cation Exchange capacity ” . In Methods of soil analysis Part 2–Chemical and microbiological properties , Edited by: Black , C.A. 891 – 901 . Madison, WI : Amer. Soc. Agronomy .
   Google Scholar
• Skoog , D. A. , West , D. M. and Holler , F. J. 1992 . Fundamentals of Analytical Chemistry, 4th edition , Philadelphia, PA, USA : Saunders College Publishing .
   Google Scholar
• National Department of Agriculture of the Republic of South Africa . http://wetlands.sanbi.org/articles2/File/R_WaterLifeCulture.pdf. Wetlands, Water, Life & Culture. Accessed January 2010
   Google Scholar
• Macaskill , C. 2009 . The National Agricultural Directory 2009 . Department of Agriculture, Republic of South Africa , : 570
   Google Scholar
• Ponnamperuma , F. N. 1972 . The chemistry of submerged soils . Advances in Agronomy , 24 : 29 – 88 .
   Google Scholar
• Foy , C. D. , Chaney , R. L. and White , M. C. 1978 . The physiology of metal toxicity in plants . Annu. Rev. Plant Physiology , 29 : 511 – 566 .
   Google Scholar
• Deng , H. , Ye , Z. H. and Wong , M. H. 2009 . Lead, zinc and iron (Fe2+) tolerances in wetland plants and relation to root anatomy and spatial pattern of ROL . Environ. & Experimental Botany , 65 : 353 – 362 .
   Web of Science ®Google Scholar
• Barlett , R. J. 1961 . Iron oxidation proximate to plant roots . Soil Sci. , 92 : 372 – 379 .
   Google Scholar
• Martin , M. H. 1968 . Conditions affecting the distribution of Ajercurialis perennis L . in certain Cambridgeshire woodlands. J. Ecology , 56 : 777 – 793 .
   Google Scholar
• Green , M. S. and Ethebinoton , R. 1977 . Oxidation of ferrous iron by rice (Oryza sativa L.) roots: a mechanism for waterlogging tolerance . J. Experimental Botany , 28 : 678 – 690 .
   Web of Science ®Google Scholar
• Armstrong , W. 1967 . The oxidizing activity of roots in waterlogged soils . Physiologia Plantarum , ZO : 920 – 926 .
   Google Scholar
• Marschner , H. 1995 . Mineral nutrition of higher Plants, 2nd ed. , London : Academic Press .
   Google Scholar
• Chaudhry , F. M. , Sharif , S. , Latif , A. and Qureshi , R. H. 1973 . Zn- Cu antagonism in the nutrition of rice (Oryza sativa L) . Plant Soil. , 38 ( 8 ) : 573 – 580 .
   Google Scholar
• Prasad , M. N.V. , Sajwan , K. S. and Naidu , R. 2006 . Trace Elements in the Environment: Biogeochemistry, Biotechnology, Bioremediation , Boca Raton, Florida : CRC Press .
   Google Scholar
• Plank , C. O. 1989 . Plant Analysis Handbook for Georgia , Athens, GA : Cooperative Extension Service, Univ. of Georgia . www.aesl.ces.uga.edu/docbase/publications/plant, accessed October 2009
   Google Scholar
• McCauley , A. , Jones , C. and Jacobsen , J. Soil pH and Organic matter . Montana State University: Bozeman; www.landresources.montana.edu, accessed October 2009
   Google Scholar
• Ross , D. S. Recommended methods for determining soil cation exchange capacity . www.ag.udel.edu/extension/agnr/pdf/soiltesing/CHAP9-95.pdf, accessed October 2009
   Google Scholar
• Plank , C. O. 1989 . Plant Analysis Handbook for Georgia , Athens, GA : Cooperative Extension Service, Univ. of Georgia . www.aesl.ces.uga.edu/docbase/publications/plant, accessed October 2009
   Google Scholar
• Barreto , R. , Tsegaye , T. , Coleman , T. L. , Shaffer , D. and Tadesse , W. 2009 . Land use effect on the distribution of soil physical and chemical properties under tropical rainforests of Puerto Rico . Geoscience and Remote Sensing Symp. Proceedings. , July 12–17, Cape Town, South Africa
   Google Scholar
• Institute of Medicine of the National Academies . Dietary Reference Intakes: Elements . www.iom.edu/Activities/Nutrition/SummaryDRIs/~/media/Files/Activity%20Files/Nutrition/DRIs/DRI_Elements.ashx, accessed October 2010
   Google Scholar
• http://www.vitamin-insight.com/minerals/cobalt.aspx. Cobalt-Mineral Neuron Guide at Vitamin Insight, accessed September 2010
   Google Scholar
• Judith , E. , Isaacs , J. and Woolridge , N. H. 2008 . Nutrition through the Life Cycle 3rd edn. , Edited by: Adams , P. , Rose , N. and Feldman , E. ii New York : Thomas Learning Inc. .
   Google Scholar
• Holloway , W. , Argall , M. , Jealous , W. , Lee , J. and Bradbury , J. 1989 . Organic acids and calcium oxalate in tropical root crops . J. Agric. and Food Chem. , 37 : 337 – 340 .
   Web of Science ®Google Scholar
• Wanasundera , J. P.D. and Ravindran , G. 1992 . Effects of cooking on the nutrient and antinutrient contents of yam tubers (Dioscorea alata and Dioscorea esculenta) . Food Chem. , 45 ( 4 ) : 247 – 250 .
   Google Scholar
• Food , a nd . 1990 . Agriculture Organization of the United Nations, (FAO) Food and nutrition series in roots, tubers, plantains and bananas in human nutrition . FAO: Rome ,
   Google Scholar