Journal
ENVIRONMENTAL POLLUTION
Volume 146, Issue 1, Pages 120-127Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.envpol.2006.06.006
Keywords
phytoextraction; phosphorus; crop plants; phytase; phosphomonoesterase
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in the search for a suitable plant to be used in P phytoremediation, several species belonging to legume, vegetable and herb crops were grown in P-enriched soils, and screened for P accumulation potentials. A large variation in P concentrations of different plant species was observed. Some vegetable species such as cucumber (Cucumis sativus) and yellow squash (Cucurbita pepo var. melopepo) were identified as potential P accumulators with > 1% (dry weight) P in their shoots. These plants also displayed a satisfactory biomass accumulation while growing on a high concentration of soil P. The elevated activities of phosphomonoesterase and phytase were observed when plants were grown in P-enriched soils, this possibly contributing to high P acquisition in these species. Sunflower plants also demonstrated an increased shoot P accumulation. This study shows that the phytoextraction of phosphorus can be effective using appropriate plant species. (c) 2006 Elsevier Ltd. All rights reserved.
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