Guard cells control hypocotyl elongation through HXK1, HY5, and PIF4

Guard cells control hypocotyl elongation through HXK1, HY5, and PIF4

Blog Article

Kelly et al.show that Arabidopsis hexokinase1 (HXK1) expressed in guard-cells is sufficient to drive hypocotyl elongation through increasing the aptamil allerpro activity of PIF4 and auxin level, and competing with the effects of HY5.This study provides insights into how light and sucrose antagonistically coordinate the 2nd recon battalion patch effort to achieve the height necessary for efficient photosynthetic, autotrophic sugar production.