Fig. 8
The descriptive model of brassinosteroids (BRs) function in spikelet development under moderate soil-drying (MD) treatment during rice panicle development. Under MD treatment, photosynthesis is not severely inhibited, and the growing panicle can get more NSC from vegetative tissues, and also get prolonged inflorescence meristem (IM) activity, and the AsA synthesis and recycle (AsA-GSH cycle) were enhanced to protect spikelet growth and development from the deleterious effect of H2O2 in panicles by increasing BRs level in growing panicles. The black arrow “→” indicates enhancement, while red “˧” indicates inhibition. Up-regulated items under the MD treatment are marked with upward blue arrows, and down-regulated items under the MD treatment are marked with downward blue arrows