Members of the Cucurbitaceae family accumulate several hydrophobic organic pollutants in their above-ground parts at high concentrations. Major latex-like proteins (MLPs) identified in Cucurbita pepo bind to hydrophobic organic pollutants, such as pyrene and dieldrin, in roots, forming complexes that are transported via xylem vessels to the above-ground plant parts. However, soil remediation of hydrophobic organic pollutants utilizing MLPs has not been established.
View Article and Find Full Text PDFBackground: Zucchini plants (Cucurbita pepo) accumulate persistent organic pollutants (POPs) at high concentrations in their aerial parts, and major latex-like proteins (MLPs) play crucial roles in their accumulation. MLPs bind to POPs in root cells, MLP-POP complexes are then translocated into xylem vessels, and POPs are transported to the aerial parts. We previously identified three CpMLP genes (MLP-PG1, MLP-GR1, and MLP-GR3) as transporting factors for POPs; however, other studies have shown that the genomes of several plant species contain more than 10 MLP genes, thus, further MLP genes responsible for POP accumulation may have been overlooked.
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