Topic
Iodine
About: Iodine is a research topic. Over the lifetime, 8936 publications have been published within this topic receiving 139981 citations. The topic is also known as: I & element 53.
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TL;DR: Iodine uptake by Chinese cabbage was more effective than in the form of I− if the concentration was low, but the trend was opposite if iodine concentration was 0.5 mg L−1 or higher, which implies that the uptake mechanism transits from active to passive as the iodine concentration increases.
Abstract: Iodine-enhanced vegetable has been proven to be an effective way to reduce iodine deficiency disorders in many regions. However, the knowledge about what mechanisms control plant uptake of iodine and where iodine is stored in plants is still very limited. A series of controlled experiments, including solution culture, pot planting, and field experiments were carried out to investigate the uptake mechanism of iodine in different forms. A new methodology for observing the iodine distribution within the plant tissues, based on AgI precipitation reaction and transmission electron microscope techniques, has been developed and successfully applied to Chinese cabbage. Results show that iodine uptake by Chinese cabbage was more effective when iodine was in the form of IO(3) (-) than in the form of I(-) if the concentration was low (<0.5 mg L(-1)), but the trend was opposite if iodine concentration was 0.5 mg L(-1) or higher. The uptake was more sensitive to metabolism inhibitor in lower concentration of iodine, which implies that the uptake mechanism transits from active to passive as the iodine concentration increases, especially when the iodine is in the form of IO(3) (-). The inorganic iodine fertilizer provided a quicker supply for plant uptake, but the higher level of iodine was toxic to plant growth. The organic iodine fertilizer (seaweed composite) provided a more sustainable iodine supply for plants. Most of the iodine uptake by the cabbage is intercepted and stored in the fibrins in the root while the iodine that is transported to the above-ground portion (shoots and leaves) is selectively stored in the chloroplasts.
52 citations
52 citations
52 citations
TL;DR: The strategy to combat iodine deficiency in Denmark seems to be working because the fortification led to increased urinary iodine excretion in (almost) all participants, however, the level of iodine fortification of salt is too low.
52 citations
TL;DR: Copper(I) iodide and potassium iodide react with benzimidazole under hydrothermal conditions to form a photoluminescent μ3/μ4 iodo-bridged, four-legged, triple-ladder polymer as mentioned in this paper.
Abstract: Copper(I) iodide and potassium iodide react with benzimidazole under hydrothermal conditions to form a photoluminescent μ3/μ4 iodo-bridged, four-legged, triple-ladder polymer [(CuI)2(C7H6N2)]n
(1) as well as linear [Cu(2-IC7H4N2)]n
(2), which has iodine in the heterocyclic entity that results from nucleophilic substitution. The compounds can be synthesized independently with a rational choice of different solvents: compound 1 is the sole product in acetonitrile whereas aqueous ammonia only results in the formation of compound 2. Compound 1 shows two emission peaks at 409 and 608 nm assigned to a combination of iodide to copper charge transfer (XMCT) and a metal centre d–sp transition.
51 citations