Is Plant Nitrogen Depletion Really Linked to the Biosynthesis of Carbon-Rich Defense-Related Compounds in Organic Products?

Simona Fabroni, Paolo Rapisarda
2020 Acta Scientific Agriculture  
and Paolo Rapisarda. Previous studies speculated on the existence of an inverse relationship between the available nitrogen and the accumulation of defense-related secondary metabolites in plants [1], as a consequence of C:N ratio unbalance. According to this hypothesis, the lower nitrogen contents of organically grown plants lead to a shift from the N-containing compounds to the production of carbonrich defense-related phenylpropanoids. It has been also suggested that this behavior is
more » ... y linked to the increased resilience to pest attacks and damage exerted by organic plants [2][3][4]. Recent research [5] showed that long-term organic fields have been associated with no consistent difference in nitrogen and carbon content, nor in C:N ratio, between the organic and conventional
doi:10.31080/asag.2020.04.0903 fatcat:b56dv53nv5bj3a5l6to3cnedzi