P M Kopittke

Summary

Affiliation: University of Queensland
Country: Australia

Publications

  1. doi request reprint Distribution and speciation of Mn in hydrated roots of cowpea at levels inhibiting root growth
    Peter M Kopittke
    University of Queensland, School of Agriculture and Food Sciences, St Lucia, Queensland 4072, Australia
    Physiol Plant 147:453-64. 2013
  2. pmc Examination of the distribution of arsenic in hydrated and fresh cowpea roots using two- and three-dimensional techniques
    Peter M Kopittke
    School of Agriculture and Food Sciences, The University of Queensland, St Lucia, Queensland 4072, Australia
    Plant Physiol 159:1149-58. 2012
  3. doi request reprint Alleviation of Cu and Pb rhizotoxicities in cowpea (Vigna unguiculata) as related to ion activities at root-cell plasma membrane surface
    Peter M Kopittke
    School of Agriculture and Food Sciences, The University of Queensland, St Lucia, Queensland 4072, Australia
    Environ Sci Technol 45:4966-73. 2011
  4. doi request reprint Toxicity of metals to roots of cowpea in relation to their binding strength
    Peter M Kopittke
    The University of Queensland, School of Agriculture and Food Sciences, St Lucia, Queensland, Australia
    Environ Toxicol Chem 30:1827-33. 2011
  5. pmc In situ distribution and speciation of toxic copper, nickel, and zinc in hydrated roots of cowpea
    Peter M Kopittke
    School of Agriculture and Food Sciences, The University of Queensland, St Lucia, Queensland 4072, Australia
    Plant Physiol 156:663-73. 2011
  6. pmc Calculated activity of Mn2+ at the outer surface of the root cell plasma membrane governs Mn nutrition of cowpea seedlings
    Peter M Kopittke
    The University of Queensland, School of Agriculture and Food Sciences, St Lucia, Queensland, 4072, Australia
    J Exp Bot 62:3993-4001. 2011
  7. doi request reprint Separating multiple, short-term, deleterious effects of saline solutions on the growth of cowpea seedlings
    Peter M Kopittke
    The University of Queensland, School of Land, Crop and Food Sciences, St Lucia, QLD 4072, Australia
    New Phytol 189:1110-21. 2011
  8. ncbi request reprint Toxic effects of low concentrations of Cu on nodulation of cowpea (Vigna unguiculata)
    Peter M Kopittke
    School of Land and Food Sciences, The University of Queensland, St Lucia, QLD 4072, Australia
    Environ Pollut 145:309-15. 2007
  9. doi request reprint Trace metal phytotoxicity in solution culture: a review
    Peter M Kopittke
    The University of Queensland, School of Land, Crop and Food Sciences, St Lucia, Queensland, Australia, 4072
    J Exp Bot 61:945-54. 2010
  10. doi request reprint Toxic effects of Cu(2+) on growth, nutrition, root morphology, and distribution of Cu in roots of Sabi grass
    P M Kopittke
    School of Land, Crop and Food Sciences, The University of Queensland, St Lucia, Queensland 4072, Australia
    Sci Total Environ 407:4616-21. 2009

Detail Information

Publications17

  1. doi request reprint Distribution and speciation of Mn in hydrated roots of cowpea at levels inhibiting root growth
    Peter M Kopittke
    University of Queensland, School of Agriculture and Food Sciences, St Lucia, Queensland 4072, Australia
    Physiol Plant 147:453-64. 2013
    ....
  2. pmc Examination of the distribution of arsenic in hydrated and fresh cowpea roots using two- and three-dimensional techniques
    Peter M Kopittke
    School of Agriculture and Food Sciences, The University of Queensland, St Lucia, Queensland 4072, Australia
    Plant Physiol 159:1149-58. 2012
    ..In addition, we suggest that root border cells possibly contribute to the plant's ability to tolerate excess As(V) by accumulating high levels of As and limiting its movement into the root...
  3. doi request reprint Alleviation of Cu and Pb rhizotoxicities in cowpea (Vigna unguiculata) as related to ion activities at root-cell plasma membrane surface
    Peter M Kopittke
    School of Agriculture and Food Sciences, The University of Queensland, St Lucia, Queensland 4072, Australia
    Environ Sci Technol 45:4966-73. 2011
    ..In addition, Ca was found to alleviate Pb toxicity through a specific effect. Although our data do not preclude site-specific competition (as incorporated in the BLM), we suggest that electrostatic effects have an important role...
  4. doi request reprint Toxicity of metals to roots of cowpea in relation to their binding strength
    Peter M Kopittke
    The University of Queensland, School of Agriculture and Food Sciences, St Lucia, Queensland, Australia
    Environ Toxicol Chem 30:1827-33. 2011
    ..Besides direct toxic effects, osmotic effects or reduced activity of Ca(2+) at the outer surface of the root plasma membrane (and resultant Ca deficiency) may decrease short-term root growth...
  5. pmc In situ distribution and speciation of toxic copper, nickel, and zinc in hydrated roots of cowpea
    Peter M Kopittke
    School of Agriculture and Food Sciences, The University of Queensland, St Lucia, Queensland 4072, Australia
    Plant Physiol 156:663-73. 2011
    ..To our knowledge, this is the first report of the in situ distribution and speciation of Cu, Ni, and Zn in hydrated (and fresh) plant tissues, providing valuable information on the potential mechanisms by which they are toxic...
  6. pmc Calculated activity of Mn2+ at the outer surface of the root cell plasma membrane governs Mn nutrition of cowpea seedlings
    Peter M Kopittke
    The University of Queensland, School of Agriculture and Food Sciences, St Lucia, Queensland, 4072, Australia
    J Exp Bot 62:3993-4001. 2011
    ..Although specific effects such as competition are not precluded, the data emphasize the importance of non-specific electrostatic effects in the Mn nutrition of cowpea seedlings over a 1×10(5)-fold range of Mn concentration in solution...
  7. doi request reprint Separating multiple, short-term, deleterious effects of saline solutions on the growth of cowpea seedlings
    Peter M Kopittke
    The University of Queensland, School of Land, Crop and Food Sciences, St Lucia, QLD 4072, Australia
    New Phytol 189:1110-21. 2011
    ..A multiple regression model related root growth to osmolarity and {I(z)}₀° (R²=0.924), allowing the quantification of their effects...
  8. ncbi request reprint Toxic effects of low concentrations of Cu on nodulation of cowpea (Vigna unguiculata)
    Peter M Kopittke
    School of Land and Food Sciences, The University of Queensland, St Lucia, QLD 4072, Australia
    Environ Pollut 145:309-15. 2007
    ..This reduction in nodulation with increasing Cu(2+) activity was associated with an inhibition of root hair formation in treatments containing > or =0.77 microM Cu(2+), rather than to a reduction in the size of the Rhizobium population...
  9. doi request reprint Trace metal phytotoxicity in solution culture: a review
    Peter M Kopittke
    The University of Queensland, School of Land, Crop and Food Sciences, St Lucia, Queensland, Australia, 4072
    J Exp Bot 61:945-54. 2010
    ..Observing these criteria will potentially lead to reliable data on the relationship between growth depression and the concentration of the toxic metal in solution...
  10. doi request reprint Toxic effects of Cu(2+) on growth, nutrition, root morphology, and distribution of Cu in roots of Sabi grass
    P M Kopittke
    School of Land, Crop and Food Sciences, The University of Queensland, St Lucia, Queensland 4072, Australia
    Sci Total Environ 407:4616-21. 2009
    ..Due to limited translocation of Cu from the roots to the shoots, phytotoxicity is likely to be more of a problem in remediation of Cu-toxic sites than is Cu toxicity of fauna consuming the above-ground biomass...
  11. ncbi request reprint Localization and chemical speciation of Pb in roots of signal grass (Brachiaria decumbens) and Rhodes grass (Chloris gayana)
    Peter M Kopittke
    School of Land, Crop and Food Sciences, The University of Queensland, St Lucia, Queensland, Australia, 4072
    Environ Sci Technol 42:4595-9. 2008
    ..These findings suggest that the ability of signal grass to sequester insoluble Pb in the cell wall represents an additional and potentially important mechanism of Pb tolerance not possessed by the Pb-sensitive Rhodes grass...
  12. ncbi request reprint Prediction of Pb speciation in concentrated and dilute nutrient solutions
    P M Kopittke
    School of Land, Crop and Food Sciences, The University of Queensland, St Lucia, Queensland 4072, Australia
    Environ Pollut 153:548-54. 2008
    ..Given the low solubility of Pb-phosphates, nutrient solutions with low P concentrations should be utilized, and plant growth should be related to measured Pb concentrations rather than to the quantity of Pb initially added...
  13. ncbi request reprint Toxic effects of Pb2+ on growth of cowpea (Vigna unguiculata)
    Peter M Kopittke
    School of Land, Crop and Food Sciences and CRC for Contamination Assessment and Remediation of the Environment, The University of Queensland, St Lucia, Queensland 4072, Australia
    Environ Pollut 150:280-7. 2007
    ..In the root, Pb was found to accumulate primarily within the cell walls and intercellular spaces...
  14. ncbi request reprint Evaluation of extractants for estimation of the phytoavailable trace metals in soils
    Neal W Menzies
    School of Land and Food Sciences, The University of Queensland, St Lucia, QLD 4072, Australia
    Environ Pollut 145:121-30. 2007
    ..01 M CaCl(2) and 0.1 M NaNO(3)) provide the most useful indication of metal phytoavailability across a range of metals of interest, although further research is required...
  15. doi request reprint Rhizotoxic effects of silver in cowpea seedlings
    F Pax C Blamey
    School of Land, Crop and Food Sciences, University of Queensland, St Lucia, Queensland, 4072, Australia
    Environ Toxicol Chem 29:2072-8. 2010
    ..The similarity of rupturing effects, despite the difference in strong binding to soft ligands by Ag and to hard ligands by the other metals, suggests a distinctive metabolic effect of Ag that binds only weakly to hard ligands...
  16. doi request reprint Metal ion effects on hydraulic conductivity of bacterial cellulose-pectin composites used as plant cell wall analogs
    Brigid A McKenna
    School of Land, Crop and Food Sciences, The University of Queensland, St Lucia, Queensland 4072, Australia
    Physiol Plant 138:205-14. 2010
    ..The experiment illustrates the importance of metal interactions with pectin, and the implications of such an interaction in plant metal toxicity and in normal cell wall processes...
  17. doi request reprint Hydrolysis and speciation of Al bound to pectin and plant cell wall material and its reaction with the dye chrome azurol S
    J Bernhard Wehr
    School of Land, Crop and Food Sciences, The University of Queensland, St Lucia, Queensland, Australia
    J Agric Food Chem 58:5553-60. 2010
    ..and sunflower ( Helianthus annuus L.) with the Al-specific dye, chrome azurol S (CAS), resulted in the formation of a purple color, with the intensity related to the extent of Al hydrolysis...