A - Papers appearing in refereed journals
McGrath, S. P., Mico, C., Zhao, F-J., Stroud, J. L., Zhang, H. and Fozard, S. 2010. Predicting molybdenum toxicity to higher plants: estimation of toxicity threshold values. Environmental Pollution. 158 (10), pp. 3085-3094.
|Authors||McGrath, S. P., Mico, C., Zhao, F-J., Stroud, J. L., Zhang, H. and Fozard, S.|
Four plant species (oilseed rape, Brassica napus L.; red clover, Trifolium pratense L.; ryegrass, Lolium perenne L.; and tomato, Lycopersicon esculentum L.) were tested on ten soils varying widely in soil properties to assess molybdenum (Mo) toxicity. A larger range (66-fold–609-fold) of added Mo concentrations resulting in 50% inhibition of yield (ED50) was found among soils than among plant species (2-fold–38-fold), which illustrated that the soils differed widely in the expression of Mo toxicity. Toxicity thresholds based on soil solution Mo narrowed the variation among soils compared to thresholds based on added Mo concentrations. We conclude that plant bioavailability of Mo in soil depends on Mo solubility, but this alone did not decrease the variability in observed toxicity enough to be used in risk assessment and that other soil properties influencing Mo toxicity to plants need to be considered.
|Year of Publication||2010|
|Journal citation||158 (10), pp. 3085-3094|
|Digital Object Identifier (DOI)||doi:10.1016/j.envpol.2010.06.030|
|Open access||Published as non-open access|
|Funder project or code||SEF|
|Toxicity and bioavailability of molybdenum in terrestrial environments|
|Online||24 Jul 2010|
|Publication process dates|
|Accepted||19 Jun 2010|
|Publisher||Elsevier Sci Ltd|
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