Exploring flowering time in rice—with PhytoAB antibodies!

How does protein turnover help regulate when rice flowers?

In Science Advances, Zhang and colleagues showed that the F-box protein OsFKF1 interacts with OsGI and Hd1, and promotes OsGI degradation through the ubiquitin–26S proteasome pathway. Their study connects protein interactions and stability with flowering-time regulation.

The researchers used two PhytoAB antibodies for Western blot analysis of OsGI and Hd1 abundance across a 24-hour time course under long-day and short-day conditions:

PHY4565A: OsGI / GIGANTEA antibody 

PHY4249S: Hd1 / Heading date 1 antibody

The study also reports preimmune-serum and peptide-neutralization controls to assess antibody specificity.

Studying photoperiod responses, flowering regulators, or protein turnover? Explore PhytoAB antibodies for your plant research.

Reference

Zhang, X., et al. (2026). An F-box protein OsFKF1 interacts with either OsGI or Hd1 and mediates the degradation of OsGI to control flowering time in rice. Science Advances, 12(25), eadz5090.