Transfer of iodine from soil to cereal grains in agricultural areas of Austria

Shinonaga, Taeko; Gerzabek, Martin H.; Strebl, F.; Muramatsu, Yasuyuki

doi:10.1016/s0048-9697(00)00764-6

Cited by 38 publications

(26 citation statements)

References 18 publications

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“…Our results (Fig. 2) show that the solution-to-leave transfer factors were generally higher than those reported for rice in solution culture (Mackowiak and Grossl, 1999), and much higher than those reported for wheat grains (average 0.0016) grown in field soils (Shinonaga et al, 2001). Results from this experiment showed that with an iodate concentration of 1 AM (about 0.1 mg kg À 1 ) in the nutrient solution, I concentration in spinach leaves was around 3 mg kg À 1 on a fresh weight basis, which is probably enough to supplement I through dietary intake.…”

Section: Discussioncontrasting

confidence: 59%

Iodine uptake by spinach (Spinacia oleracea L.) plants grown in solution culture: effects of iodine species and solution concentrations

Zhu

Huang

et al. 2003

Environment International

138

115

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A hydroponic experiment was carried out to investigate the effects of iodine species and solution concentrations on iodine uptake by spinach (Spinacia oleracea L.). Five iodine concentrations (0, 1, 10, 50 and 100 AM) for iodate (IO 3 À ) and iodide (I À ) were used. Results show that higher concentrations of I À ( R 10 AM) had some detrimental effect on plant growth, while IO 3 À had little effect on the biomass production of spinach plants. Increases in iodine concentration in the growth solution significantly enhanced I concentrations in plant tissues. The detrimental effect of I À on plant growth was probably due to the excessively high accumulation of I in plant tissues. The solution-tospinach leaf transfer factors (TF leaf , fresh weight basis) for plants treated with iodide were between 14.2 and 20.7 at different solution concentrations of iodide; TF leaf for plants treated with iodate decreased gradually from 23.7 to 2.2 with increasing solution concentrations of iodate. The distribution coefficients (DCs) of I between leaves and roots were constantly higher for plants treated with iodate than those treated with iodide. DCs for plants treated with iodide increased with increasing solution concentrations of iodide, while DCs for plants treated with iodate (around 5.5) were similar across the range of solution concentrations of iodate used in this experiment. The implications of iodine accumulation in leafy vegetables in human iodine nutrition are also discussed. D

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Section: Discussioncontrasting

confidence: 59%

Iodine uptake by spinach (Spinacia oleracea L.) plants grown in solution culture: effects of iodine species and solution concentrations

Zhu

Huang

et al. 2003

Environment International

138

115

View full text Add to dashboard Cite

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“…This effect seems to depend on the ability of humic substances to adsorb iodine (process apparently mediated by microorganisms) decreasing its volatilization (Bostock, 2003), although in the absence of organic matter seems to be great iodine volatilization activity as CH3I through microbial activity (Amachi et al, 2003). This fact may partly explain the apparent negative relationship between clay content of the soil and iodine uptake by plants, while soil pH does not appear to exert any effect in the range of 5.4 to 7.6 (Shinonaga et al, 2001).…”

Section: Availability Of Iodine In the Soilmentioning

confidence: 98%

“…In a study conducted by Shinonaga et al (2001) established that iodine concentration in grain cereal from inland agricultural areas in Europe was particularly low, with values of 0.002 to 0.03 µg g -1 , compared to soils near the ocean. Little is known about how this element is accumulated in terrestrial plants, however, in a research conducted in pumpkin plants was deduced through a study with electron microscopy that the inorganic and organic iodine applied directly to the substrate, most of iodine accumulated in the root, while another small portion was transported to the aerial parts to be stored in the chloroplasts (Weng et al, 2008a), fact that may partly explain its role of inducing tolerance to certain types of stress since a significant volume of the antioxidant cellular machinery is found in chloroplasts.…”

Section: Iodine Content In Plantsmentioning

confidence: 99%

“…yodo por las plantas, mientras que el pH del suelo no parece ejercer efecto alguno en el intervalo de 5.4 a 7.6 (Shinonaga et al, 2001).…”

Section: Fertilization With Iodine For Biofortification In Soilless Cunclassified

“…Se tiene por ejemplo que el Cl -tiene un alto TF, debido a su flujo en la planta muestra alta correlación con el flujo hídrico del xilema, se ha calculado un valor TF= 785 para el Cl -en Lolium perene (Ashworth y Shaw, 2006). En contraste los valores de TF para yodo suelen ser muy bajos: 0.00034 para pastos (IAEA, 1994), 0.0005-0.02 para cereales en Austria (Shinonaga et al, 2001), 0.024-0.19 para maíz, betabel y calabaza (Sheppard et al, 1993) y 0.01-0.03 para rábanos y lechuga (Kashparov et al, 2005).…”

Section: (Figura 2)unclassified

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Biofortificación con yodo en plantas para consumo humano

Leija-Martínez

Benavides-Mendoza

Rocha-Estrada

et al. 2017

Remexca

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ResumenEn el presente trabajo se describe la problemática de salud debido al consumo insuficiente del yodo, así como las alternativas que han sido empleadas para mitigar este problema global, tanto las tradicionales como la yodatización de sal de mesa hasta las nuevas tendencias de biofortificación con yodo en las principales plantas de consumo humano. Se incluyen los mecanismos de absorción, volatilización y transporte del yodo en las plantas, distinguiendo entre especies marinas y terrestres. Se mencionan asimismo los resultados obtenidos en algunos estudios de biofortificación, citando las diferentes formas de aplicación y las diferencias obtenidas entre los sistemas de cultivo en suelo y sin suelo.Palabras clave: absorción de yodo, desorden por deficiencia de yodo, fortificación con yodo, haloperoxidasas, yodatización. IntroducciónEl consumo insuficiente de los micronutrientes través de los alimentos causa una malnutrición mineral en humanos. Hasta ahora se han determinado 11 elementos traza que son AbstractThis paper describe health problems due to insufficient iodine intake, thus the alternatives that have been used to alleviate this global problem, both traditional and iodization of table salt to new trends of iodine biofortification in the main plants for human consumption. The mechanisms of absorption, volatilization and transport of iodine in plants, distinguishing between marine and terrestrial species are included. The results of some biofortification studies are also mentioned, citing the different forms of application and the differences obtained between cropping systems in soil and soilless.

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Iodine biofortification in tomato

Landini

Gonzali

Perata

2011

Z. Pflanzenernähr. Bodenk.

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Iodine is an essential element in the human diet, and iodine deficiency is a significant health problem. No attempts to increase iodine content in plant-derived food (biofortification) have so far been particularly effective. We studied iodine uptake in tomato (Solanum lycopersicum L.) to evaluate whether it is possible to increase the iodine concentration in its fruits. Iodine translocation and storage inside tomato tissues were studied using radioactive iodine. Potassium iodide was also supplied at different concentrations to tomato plants to evaluate the resulting iodide concentration both in the vegetative tissues and the fruits. The results indicate that iodine was taken up better when supplied to the roots using hydroponically grown plants. However, a considerable amount of iodine was also stored after leaf treatment, suggesting that iodine transport through phloem also occurred. We found that tomato plants can tolerate high levels of iodine, stored both in the vegetative tissues and fruits at concentrations that are more than sufficient for the human diet. We conclude that tomato is an excellent crop for iodine-biofortification programs

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Transfer of iodine from soil to cereal grains in agricultural areas of Austria

Cited by 38 publications

References 18 publications

Iodine uptake by spinach (Spinacia oleracea L.) plants grown in solution culture: effects of iodine species and solution concentrations

Iodine uptake by spinach (Spinacia oleracea L.) plants grown in solution culture: effects of iodine species and solution concentrations

Biofortificación con yodo en plantas para consumo humano

Iodine biofortification in tomato

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