In panel A, the Se content of various categories of food is depicted in decreasing fashion, from Brazil nuts, fish and seafood and meat on the high end down to fruit and vegetables on the low end. Most foods are well below 0.5 microgram Se per gram of dry food product, indicating that more than 110 grams of dry food product are needed to attain the daily dose of 55 microgram Se. The message is that most foods are quite low in their Se content. In panel B, the concentration of nineteen elements in plants of various species is indicated, mostly in descending fashion. The most abundant elements are N, Ca, K, Mg, Cl, S and P, while the micronutrients Fe, Mn, B, Zn, Cu, Ni and Mo are consistently present but at lower levels. Selenium is placed between S and P, the two elements that show strong interactions with Se and have shared transporters, although generally the Se content is much lower even than Mo, the least abundant plant nutrient. However, there are high outliers of Se that are at roughly the same level as S and Se, representing the so-called Se hyperaccumulator species.
#TansleyReview: New comprehensive metabolic map of selenium metabolism in plants as a resource for selenium research
📖 nph.onlinelibrary.wiley.com/doi/10.1111/...
by van der Woude et al.
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