Skip to main content
. Author manuscript; available in PMC: 2015 Apr 20.
Published in final edited form as: Plant J. 2014 Aug 7;79(6):1020–1032. doi: 10.1111/tpj.12603

Figure 8.

Figure 8

Model of gibberellin (GA) biosynthesis, perception and signaling in seeds and valves of pistils/fruits.

Bioactive GAs, mainly GA4, are synthesized in developing seeds by GA20ox and GA3ox activities. In ovules/seeds GAs are perceived by GID1A and GID1B, which interact with RGA, GAI, and RGL2 to promote seed-specific GA signaling. GAs are also transported to the valve and perceived by GID1A and GID1C, which interact with RGA, GAI, and RGL1, to promote GA-specific valve responses (mainly pod growth and degradation of endocarp a). Proteins with tissue-specific expression are underlined.