What is the role of boron in plant nutrition?

Boron is an essential micronutrient that plays several important roles in plant nutrition, with one of its critical functions being its contribution to the structure of cell walls. It is a key component in the formation of borate complexes, which are crucial for maintaining the integrity and flexibility of plant cell walls. This structural function is vital because it not only helps cells maintain their shape but also influences their growth and development.

In addition to its structural role, boron is involved in other physiological processes such as carbohydrate metabolism and the transport of sugars, which indirectly supports various growth functions. However, its direct influence on cell wall composition makes it particularly important in the overall health and vigor of plants, reflecting why it is often identified as a key nutrient in studies of plant nutrition.