Cadmium in potato and soybeans: Do phosphate fertilization and soil management systems play a role?

Corguinha, Ana Paula Branco; Gonçalves, Veridiana Cardozo; Souza, Genaína Aparecida de; Lima, Willian Eduardo Amaral de; Penido, Evanise Silva; Pinto, César Augusto Brasil Pereira; Francisco, Eros Artur Bohac; Guilherme, Luiz Roberto Guimarães

doi:10.1016/j.jfca.2012.05.001

Cited by 21 publications

(5 citation statements)

References 27 publications

(25 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The concentration ratio of the potato flesh:skin/peel:shoots was 2:5:29, with little variation between treatments. This is similar to other experiments with potato (Corguinha et al, 2012; Reid et al, 2003). Some of Cd in potato skins may arise from the incorporation of soil particles into the skin that could not be removed even after washing.…”

Section: Discussionsupporting

confidence: 92%

Effects of Lime and Organic Amendments Derived from Varied Source Materials on Cadmium Uptake by Potato

et al. 2017

View full text Add to dashboard Cite

Repeated applications of Cd-rich phosphate fertilizers have resulted in elevated concentrations of this toxic element in some New Zealand soils. Exceedance of the food safety standard for Cd (0.1 mg kg -1 fresh weight) has been reported for potato (Solanum tuberosum L.). Composts may efficiently sorb Cd in soil and therefore reduce its phytoavailability, leading to reduced uptake by plants. We aimed to determine the potential of various composts, shredded corn stover, and lime at two different rates to reduce the transfer of Cd from a soil (containing 1.45 mg kg -1 Cd) to potato (var. 'Nadine'). In the control, the peeled tubers, skins, leaves, and stems had Cd concentrations of 0.04, 0.09, 0.26, and 0.53 mg kg -1 dry weight, respectively. There was a 71% reduction in tuber Cd concentrations in potatoes grown in soil amended with 5% (w/w) shredded corn stover, although it significantly decreased potato biomass. Potatoes grown in soil amended with pig manure compost, mushroom compost, sawdust-animal waste compost, and municipal compost at rates of either 2.5 or 5% (w/w) reduced tuber Cd concentrations by 58 to 66%, 46 to 63%, 52 to 53%, and 29 to 49%, respectively. Lime (1.3%) application in soil reduced tuber Cd concentrations by 50%. Composts significantly increased tuber biomass. Further work is warranted to identify the key components of composts that result in reduced Cd uptake by plants.

show abstract

Section: Discussionsupporting

confidence: 92%

Effects of Lime and Organic Amendments Derived from Varied Source Materials on Cadmium Uptake by Potato

et al. 2017

View full text Add to dashboard Cite

show abstract

“…Based on the results of light microscopy work with D. carota, Corguinha et al (2012) proposed that Cd affects plant growth in two separate phases, with the first phase impacting the functional and cytological events (1-4 days of Cd exposure), and the second phase impacting cell to cell separation, cell hypertrophy, and thiol-peptide content (4-14 days of Cd exposure). Cadmium is also known to inhibit photosynthesis by a variety of means including: reducing the transcription of genes which are related photosynthesis such as rbcL, psaB and psbA (Qian et al 2010); inactivating Rubisco and phosphoenol pyruvate carboxylase (Bashir et al 2013); inducing lipid peroxidation (Iannone et al 2010), interfering with protochlorophyllide production (Prasad 2004), reducing the activity of enzymes involved in CO 2 fixation and inhibiting chlorophyll biosynthesis (Stobart et al 1985); enhancing proteolysis (Pena et al 2007); interfering with leaf transpiration through changes in stomatal conductance and stomatal density (Souza et al 2011;Baryla et al 2001) and; disturbing nutrient metabolism and plant antioxidant machinery (Gill and Tuteja 2010).…”

Section: Effects Of CD On Seed Germination and Plant Growthmentioning

confidence: 99%

Cadmium Bioavailability, Uptake, Toxicity and Detoxification in Soil-Plant System

Shahid

Dumat

Khalid

et al. 2016

Reviews of Environmental Contamination and Toxicology

225

175

View full text Add to dashboard Cite

This review summarizes the findings of the most recent studies, published from 2000 to 2016, which focus on the biogeochemical behavior of Cd in soil-plant systems and its impact on the ecosystem. For animals and people not subjected to a Cd-contaminated environment, consumption of Cd contaminated food (vegetables, cereals, pulses and legumes) is the main source of Cd exposure. As Cd does not have any known biological function, and can further cause serious deleterious effects both in plants and mammalian consumers, cycling of Cd within the soil-plant system is of high global relevance.The main source of Cd in soil is that which originates as emissions from various industrial processes. Within soil, Cd occurs in various chemical forms which differ greatly with respect to their lability and phytoavailability. Cadmium has a high phytoaccumulation index because of its low adsorption coefficient and high soil-plant mobility and thereby may enter the food chain. Plant uptake of Cd is believed to occur mainly via roots by specific and non-specific transporters of essential nutrients, as no Cd-specific transporter has yet been identified. Within plants, Cd causes phytotoxicity by decreasing nutrient uptake, inhibiting photosynthesis, plant growth and respiration, inducing lipid peroxidation and altering the antioxidant system and functioning of membranes. Plants tackle Cd toxicity via different defense strategies such as decreased Cd uptake or sequestration into vacuoles. In addition, various antioxidants combat Cd-induced overproduction of ROS. Other mechanisms involve the induction of phytochelatins, glutathione and salicylic acid.

show abstract

“…: body weight; MaxWI: maximum weekly intake, calculated according to the highest value of Cd (Pb, Ni) content determined in potatoes in regard to consumption 47 (84.9) kg potatoes per year: MaxWI Cd = 0.065 * 47/52 (MaxWI Cd = 0.065 * 84.9/52), MaxWI Pb = 0.230 * 47/52 (MaxWI Pb = 0.230 * 84.9/52), MaxWI Ni = 0.589 * 47/52 (MaxWI Ni = 0.589 * 84.9/52), (70, in kg) -default body weight used as default for the European adult population (aged above 18 years)[55];(47, in kg/person/year): average consumption of potatoes [51]; (84.9, in kg/person/year): maximum in available interval of rational consumption of potatoes [51].(n.d. -2.50) content were determined in potatoes conventionally and organically farmed in Egypt and in potatoes from Algeria, Australia, Bolivia, Brazil, China, Pakistan, Saudi Arabia, Ethiopia, and Iran[11,24,25,27,39,46,[59][60][61][62].…”

mentioning

confidence: 99%

Safety of Potato Consumption in Slovak Region Contaminated by Heavy Metals due to Previous Mining Activity

Musilová

Bystrická

Vollmannová

et al. 2017

Journal of Food Quality

View full text Add to dashboard Cite

Heavy metals are among the most serious environmental contaminants in mining districts. Soil, as one of the main components of the environment, is the place of heavy metal entry into plants and consequently into the food chain, too. Potatoes grown in the region of Middle Spis (Slovakia) may be a source of increased content of heavy metals and pose a health risk to the consumer. The contents of heavy metals (Cd, Pb, and Ni) in potato and soil samples were determined using the AAS method and compared with limit values set by the Slovak Republic and the European Union. The content of heavy metals was determined in 12 potato cultivars with different length of vegetation period (mid-early, very early, and early, resp.), which were grown in three localities with a highly disturbed environment. Total contents and mobile forms of heavy metals as well as physical and chemical properties were determined in soil samples which were collected from the same sampling sites. Only Pb content in potato tubers was higher than the hygienic limit value (0.1 mg kg−1 FM) in 15 sampling sites (interval was n.d. –0.2298 mg kg−1 FM). The contents of exchangeable forms (total content) of heavy metals in soil were ranged between the intervals: Cd 0.004–0.055 (0.94–1 56), Pb 0.023–0.295 (17.00–26.80), and Ni 0.019–0.475 (30.80–71.00) mg kg−1. At current average consumption levels of potatoes, tolerable weekly intake (TWI) or tolerable daily intake (TDI) for observed heavy metals was not exceeded.

show abstract

Cadmium in potato and soybeans: Do phosphate fertilization and soil management systems play a role?

Cited by 21 publications

References 27 publications

Effects of Lime and Organic Amendments Derived from Varied Source Materials on Cadmium Uptake by Potato

Effects of Lime and Organic Amendments Derived from Varied Source Materials on Cadmium Uptake by Potato

Cadmium Bioavailability, Uptake, Toxicity and Detoxification in Soil-Plant System

Safety of Potato Consumption in Slovak Region Contaminated by Heavy Metals due to Previous Mining Activity

Contact Info

Product

Resources

About