LupinCanolaCloverW SquashMustardCucumberPeanutPigeonpeaVetch ppDDE in root system Rye Phytoextracted 000075150225 065180889790ppDDE in shoot system Phytoextraction removal of wea ID: 838804
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1 Enhancing the Uptake of Weathered Persis
Enhancing the Uptake of Weathered Persistent Organic Pollutants by Jason C. White, Zakia D. Parrish, Mehmet Iselyen, Martin P.N. Gent, Br
2 ian D. Eitzer, and MaryJane Incorvia Mat
ian D. Eitzer, and MaryJane Incorvia MattinaThe Connecticut Agricultural Experiment Station LupinCanolaCloverW. SquashMustardCucumberPeanutPigeon
3 peaVetch p,p'-DDE in root system Rye % P
peaVetch p,p'-DDE in root system Rye % Phytoextracted 0.000.751.502.25 0.651.80.889.79.0p,p'-DDE in shoot system Phytoextraction (% removal) of w
4 eathered p,p’by plant species. Numb
eathered p,p’by plant species. Numbers in green indicate mass ratio of root to soil (values are 10-4) -true zucchini and some pumpkins Total
5 PAH per plant (g) 0361215 All Cucumber
PAH per plant (g) 0361215 All Cucumber S. Squash Cycle4 Uptake of 12 PAHsby 3 plant species from a MGP soil DDE 2004 Field Season -Ca
6 n we further •9 cultivars of C. pe
n we further •9 cultivars of C. pepo 1. 5 of ssppepo(4 zucchini and 1 pumpkin) 2. 4 of sspovifera(summer squash) •Treatments included
7 : 1. Rhamnolipidbiosurfactantadded to so
: 1. Rhamnolipidbiosurfactantadded to soil 2. Mycorrhizalinoculumadded to rhizosphere 3. Intercropping (oviferasurrounded by pepo •Monitor
8 tissue DDE Bioconcentration factors (BCF
tissue DDE Bioconcentration factors (BCFs), translocation factors (TFs), and overall percent removal (% phytoextracted) Root BCF 0.00.51.01.52.02
9 .5 0.00.51.01.52.02.53.0 Stem BCF Black
.5 0.00.51.01.52.02.53.0 Stem BCF Black BCT Fieldoldrusata ck B.CT FielddrushNo Surfactant Surfactant No Surfactant Surfactant Effect of a rhamno
10 lipidbiosurfactanton the root and stem B
lipidbiosurfactanton the root and stem BCFsof Root BCF 0.01.02.03.04.05.06.07.0 SenecaSunburstZep 012361416 SenecaSunZephyr Stem BCFNo Surfactan
11 t Surfactant No Surfactant Surfactant Ef
t Surfactant No Surfactant Surfactant Effect of a rhamnolipidbiosurfactanton the root and stem BCFsof Effect of biosurfactantammendmenton the Bi
12 osurfactantamendment: 1.Significantly in
osurfactantamendment: 1.Significantly increased root BCFs; ssp 2.Significantly increased stem BCFs; ssp 3. Significantly increased leaf BCFs; s
13 sppepoby 6.1 times and sspoviferaby 3.4
sppepoby 6.1 times and sspoviferaby 3.4 times sspovifera increased % phytoextracted(1.8 times) Effect of fungal inoculation on p,p’-DDE accu
14 mulation of by Cucurbita pepo. Standard
mulation of by Cucurbita pepo. Standard deviations are in parentheses. TreatmentRoot BCFStem BCF% RemovedBlack B. Effect of mycorrhizalinoculatio
15 n on the accumulation of 1.Significantl
n on the accumulation of 1.Significantly increased root BCFs; ssp 2.Significantly increased stem BCFs; ssp 3.Significantly decreased the biomass
16 of sspovifera increased % phytoextracte
of sspovifera increased % phytoextracted(doubled). Inoculated CT Effect of intercropping 3 ssppepoaround 1 sspoviferacultivar on DDE accumulati
17 on. Combinations were Black Beauty/Patty
on. Combinations were Black Beauty/Patty pan, Goldrush/Zephyr, Costata/Sunburst, and Raven/Seneca Plant type Root BCF Stem BCF Leaf BCF Fruit BCF
18 C. pepossppepo Alone Intercropped 8.6 A
C. pepossppepo Alone Intercropped 8.6 A 20 B 5.2 A 20 B 0.07 A 0.75 B 0.23 A 2.4 B C. peposspovifera Alone Intercropped 6.3 A 25 B 0.38A 2.1 B 0
19 .12 A 0.94 B 0.48 A 0.74 B Conclusions u
.12 A 0.94 B 0.48 A 0.74 B Conclusions uniquely phytoextractssignificant •The mechanisms are somewhat non-specific, as widely •This i
20 s not a specifically evolved ability; PO
s not a specifically evolved ability; POPsare entering •The mechanism of intra-plant translocation of hydrophobic •POP availability i
21 n soil is a limiting factor, even for &
n soil is a limiting factor, even for •Soil amendments that enhance POP availability can increase Acknowledgements •Dr. Xiaoping Wang
22 •Dr. Wen-Yee Lee •Dr. Neil Sc
•Dr. Wen-Yee Lee •Dr. Neil Schultes •Lydia Wagner •Bill Iannucci-Berger •Craig Musante •Terri Arsenault •And&