Role of physical and chemical agents in plants for tolerance to boron nutrition

Boron is a necessary plant micronutrient that is often absorbed by the roots as boric acid. It plays an essential role in plant metabolism by stabilizing molecules of cis–diol complexes. The element is implicated in the formation and function of the cell envelope. It plays a key role in the transportation of various biochemicals. Boron has a rather small spectrum of shortage and toxicity, and a lack of boron has a harmful consequence on plant functions. Boron is transported across the plasma membrane in plants through different mechanisms that work to support boron absorption and translocation to reinforce plant development when boron is limited. Boron shortage problem could be solved with fertilization; however, the boron needs of different species vary dramatically. Therefore, the available boron in the soil might be low for one crop but toxic to others.