Vitamins (as vital organic micronutrients for animals) were first discovered over a century ago. Plants biosynthesize these compounds de novo and are a prominent source of vitamins for humans. While gathering the wealth of information on the impact of vitamins on human health and disease alleviation, the biology of these compounds in plants themselves was largely sidelined. Within the vitamin classes, the B vitamins are renowned for their essential biochemical function as coenzymes in metabolism. However, each B vitamin is a family of compounds and control of individual family members is emerging as an important aspect of plant homeostasis. Plants undergo metabolic reprograming in response to environmental perturbations, thus on the one hand, regulation of vitamin status may be an important facet of metabolic homeostasis, influencing plant growth and health. Moreover, changing environmental conditions such as extremes of temperature and increasing carbon dioxide levels are negatively impacting plant B vitamin content and plant health. In this talk, I will present examples of aspects that we uncovered that relate to the integration of B vitamins into plant growth and homeostasis, depending on environmental circumstance. An application of this work leads to the possibility of overproduction of these compounds to enhance plant nutrient content. In this context, I will also discuss our work on enhancing the levels of particular B vitamins in consumed parts of crop plants for biofortification purposes and the importance of future proofing their content.
11 Aprile 2025