In plants, the microelement cobalt affects the accumulation of nitrogenous substances and carbohydrates, increases the intensity of respiration and photosynthesis, contributing to the formation of chlorophyll and reducing its decay in the dark. Cobalt also increases the total water content of plants, especially during drought, and is absolutely necessary for the growth of nodule bacteria and their nitrogen fixation. In plants, this element is found in ionic form and in the composition of vitamin B12 (about 4,5%). Plants, like animals, themselves do not synthesize vitamin B12… It is produced by bacteria in legume nodules and is involved in the synthesis of methionine.
