Biochemical identification of florigen and anti-florigen driving temporal oscillations in Passiflora incarnata flowering

Identify the specific biochemical entities functioning as florigen and anti-florigen that are responsible for temporal oscillations in the flowering of Passiflora incarnata, beyond their hypothesized autocatalytic (activator) and inhibitory roles in activator–inhibitor models.

Background

Prior modeling of Passiflora incarnata flowering employs an activator–inhibitor framework, invoking a florigen (promoting flowering) and an anti-florigen (inhibiting flowering). While these roles are posited within the modeling literature, their concrete biochemical identities remain unresolved.

The present work proposes a logistic-map-based phenomenological model for the observed color banding but does not identify the molecular species underlying the activator and inhibitor; the authors explicitly state that these remain to be identified in biochemical terms.

References

Although the florigen and the anti-florigen responsible for the temporal oscillations in PI flowering remain to be identified in biochemical terms, the former plays an autocatalytic role and the latter an inhibitory role.

— New Theoretical Insights Unraveling Color Pattern in the Flowers of Passiflora incarnata (2407.18979 - Misra et al., 23 Jul 2024) in Section 1.1 (Introduction)