Accumulation of weathered pp'-DDE in xylem sap of grafted watermelon

International Journal of Phytoremediation
Mehmet Isleyen, Pinar Sevim

Abstract

Movement of weathered p,p'-dichlorodiphenyldichloroethane (p,p'-DDE) from contaminated soil to the rhizosphere pore water to the xylem sap of grafted watermelon was studied under green house conditions. p,p'-DDE concentrations in pore water and xylem sap was compared in intact plants, homografted, and compatible heterografts of Cucurbita pepo spp. pepo and Citrullus lanatus plants. An average p,p'-DDE concentrations in pore water of contaminated soil ranged from 0.36 microg/L to 0.55 microg/L and there were no statistically significant among the cultivars. Conversely, the xylem sap p,p'-DDE concentration of heterografted watermelon having a zucchini rootstock and watermelon scion was 71 microg/L and it was greater than intact watermelon plants (0.49 microg/L) but less than that of intact plants of zucchini (141 microg/L). Homografting showed no effect on xylem sap p,p'-DDE concentrations of the identical cultivars. The bio-concentration factors (BCFs) which is an average p,p'-DDE concentration in xylem sap over average p,p'-DDE in pore water were 344, 325, 197, 1.28, and 0.89 for intact plant of zucchini, homografted zucchini, heterografted watermelon, homografted watermelon, and intact plant of watermelon, respectively. Xylem ...Continue Reading

References

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Citations

Jul 4, 2013·International Journal of Phytoremediation·Mehmet IsleyenJason C White
May 23, 2012·Environmental Toxicology and Chemistry·Mehmet IsleyenJason C White
May 6, 2021·Environmental Science and Pollution Research International·Mahmut Kemal KorucuMehmet Isleyen
Jan 10, 2012·Journal of Agricultural and Food Chemistry·Mehmet IsleyenJason C White

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Methods Mentioned

BETA
heterografts

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