Cadmium accumulation in potato tubers produced in Quebec

2009 ◽  
Vol 89 (4) ◽  
pp. 435-443 ◽  
Author(s):  
J -L Fan ◽  
N Ziadi ◽  
G Bélanger ◽  
L É Parent ◽  
A Cambouris ◽  
...  
Keyword(s):  
Solanum Tuberosum ◽  
Soil Ph ◽  
Solanum Tuberosum L ◽  
Clay Content ◽  
Cadmium Accumulation ◽  
Potato Tubers ◽  
Cd Uptake ◽  
Soil P ◽  
Negative Effect ◽  
Soil Cd

Cadmium (Cd) is a heavy metal present in soils that can accumulate at relatively high levels in potato (Solanum tuberosum L.) with no negative effect on growth. Our objectives were to investigate Cd concentration in potato tubers produced in Quebec and to relate some soil characteristics, especially pH, P, and Cd, to tuber Cd concentration. Potato tubers (n = 75) and soil samples (n = 64) were collected from 1999 to 2006 at five experimental sites. Tuber Cd concentration ranged from 0.04 to 0.20 mg kg–1 dry matter (DM), with a median value of 0.11 mg kg–1 DM, and never exceeded the proposed tolerance for potato of 0.05 mg kg–1 fresh weight or about 0.25 mg kg–1 DM. Tuber Cd concentration was weakly, although not significantly, related to soil available P content (r2 = 0.53, P = 0.064), indicating a possible influence of soil P on Cd uptake by potato. Tuber Cd concentration was not directly related to soil pH, or to DTPA- or Mehlich 3-extractable Cd in soils. The log-transformed tuber Cd concentration was significantly (r2adj = 0.87, P < 0.01) related to both soil pH and VCd13, a generated variable that accounts for interactions between soil Cd and clay content, soil organic matter, and soil concentrations of Fe, Al, Mn, P, K, S, Ca, Cu, Zn, and B. Single factors such as soil Cd, soil P, or pH could not solely explain Cd accumulation in tubers; interactions between selected soil properties and soil Cd should be considered.Key words: Cadmium, phosphorus, Solanum tuberosum L., accumulation

scholarly journals Variation in Cadmium Accumulation among Potato Cultivars Grown on Different Agricultural Sites: A Potential Tool for Reducing Cadmium in Tubers

Horticulturae ◽  
2021 ◽  
Vol 7 (10) ◽  
pp. 377
Author(s):  
Sary H. Brengi ◽  
Abdel-Ghany M. El-Gindy ◽  
Islam El-Sharkawy ◽  
Ibrahim A. Abouelsaad
Keyword(s):  
Soil Properties ◽  
Solanum Tuberosum L ◽  
Clay Content ◽  
Cadmium Accumulation ◽  
Potato Cultivars ◽  
Export Market ◽  
Cd Uptake ◽  
Cd Accumulation ◽  
Growing Seasons

Potato (Solanum tuberosum L.) is an important crop in Egypt with great trade value for the export market. The addition of agrochemicals with possibly containing heavy metals, such as cadmium (Cd), decreases the quality of the final product. Generally, little is known about the factors that influence Cd content in this crop. The current study estimated the Cd levels in different organs of three potato cultivars grown in four commercial regions across Egypt. Further, we investigated the soil properties that affected Cd uptake during two growing seasons. With the exception of the Cd content of the soils, no relationships were detected between the tested soil properties (i.e., pH, conductivity, organic matter, and clay content) and Cd content in potato organs, because the soil from different regions showed comparable levels for these parameters. The average Cd content in the peeled tubers among different cultivars (0.145 mg Kg−1 DW) was below the maximum limit (0.5 mg Kg−1 DW). The patterns of Cd accumulation in potato organs were constant among cultivars, with the highest levels detected in leaves (~82%), followed by stems (~16.5%), and the lowest content observed in tubers (~1.5%). The study showed that the tested potato cultivars exhibited diversity in the accumulation levels of Cd in the tubers (~2.6-fold). The cultivar Suntana displayed the lowest Cd levels among different field sites for the two growing seasons, suggesting the potential involvement of genetic factors.

Polyacrylamid-Elektrophorese zur Beurteilung von Proteinen der Kartoffel (Solanum tuberosum L.)

1966 ◽  
Vol 21 (9) ◽  
pp. 879-888 ◽  
Author(s):  
Volkmar Loeschcke ◽  
Hermann Stegemann
Keyword(s):  
Ascorbic Acid ◽  
Solanum Tuberosum ◽  
Pore Size ◽  
Plant Material ◽  
Solanum Tuberosum L ◽  
Protein Pattern ◽  
Potato Tubers ◽  
Active Inhibitor ◽  
Electrophoretic Behavior ◽  
Acidic Proteins

Up to 25 proteins have been found in the sap of potato tubers by polyacrylamid electrophoresis. The mode of preparation and concentration of the plant material was investigated as well as the pretreatment of the polyacrylamid gel to avoid undue retardation of the migrating bands.Sulfite was the most active inhibitor of sap-browning compared with ascorbic acid and cysteine. which did not influence the protein pattern except for one line. The juice had to be dialyzed or filtered through Sephadex G 25 to remove an unkown acidic material which interferes with the more acidic proteins and causes spreading and diffusing of bands. Proteins were concentrated by means of Carbowax MW 20000. For best results ionic contaminations inherent in the gels was removed by electrophoresis before applying the proteins or dyes. Very few proteins were affected by decreasing the pore size of the gel. Ammonium sulfate (40% saturation) precipitated mainly those proteins which are similar in electrophoretic behavior to the albumin- and transferrinregion of human plasma.

scholarly journals Lipoxygenase Pathway and Membrane Permeability and Composition during Storage of Potato Tubers (Solanum tuberosum L. cv Bintje and Désirée) in Different Conditions

Plant Biology ◽  
2002 ◽  
Vol 4 (1) ◽  
pp. 77-85 ◽  
Author(s):  
M.-L. Fauconnier ◽  
J. Rojas-Beltrán ◽  
J. Delcarte ◽  
F. Dejaeghere ◽  
M. Marlier ◽  
...  
Keyword(s):  
Solanum Tuberosum ◽  
Membrane Permeability ◽  
Solanum Tuberosum L ◽  
Potato Tubers ◽  
Lipoxygenase Pathway

scholarly journals Property Changes in Potato Tubers (Solanum tuberosum L.) During Cold Storage at 0 and 10°C

2000 ◽  
Vol 26 (3) ◽  
pp. 153-160 ◽  
Author(s):  
Yosuke MURATA ◽  
Kevin F. YAPTENCO ◽  
Tomohiro NOGUCHI ◽  
Toshiro SUZUKI ◽  
Hiroaki SATO ◽  
...  
Keyword(s):  
Solanum Tuberosum ◽  
Cold Storage ◽  
Solanum Tuberosum L ◽  
Potato Tubers ◽  
Property Changes
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