The fruits of Arabidopsis thaliana split open (dehisce) along the valve margins, leading to seed dispersal. A transcription factor called INDEHISCENT (IND) is known to be important for differentiation of valve margin cells by an unknown mechanism. IND is now shown to be responsible for the formation of a local auxin minimum, necessary for specification of cells in the dehiscence zone.
- Karim Sorefan
- Thomas Girin
- Lars Østergaard
