An embryo-derived peptide signal directs endosperm polarity in Arabidopsis
Creff, A.; Rhodes, J.; Salaun, C.; Larive, J.; Bayle, V.; Turley, E.; Nobori, T.; Figueiredo, D. D.; Landrein, B.; Zipfel, C.; Ingram, G.
Show abstract
Angiosperm seed formation requires the coordinated development of the products of double fertilization, the embryo and the endosperm. The endosperm mediates efficient nutrient transfer from surrounding maternal tissues to the developing embryo. This function requires a polarized tissue organization, which manifests as early polar gene expression and polar cellularization dynamics. We show that the receptor kinase HAIKU2 acts in coordination with the transcription factor WRKY10/MINISEED3 to ensure robust endosperm polarity establishment through the activity of the homeodomain transcription factors WUSCHEL-RELATED HOMEOBOX 8 and 9. This process depends on egg cell fertilization and is mediated through the peptide PATHOGEN-INDUCED PEPTIDE-LIKE 7, which acts as a HAIKU2 ligand. Our results reveal how a molecular paracrine dialogue between the embryo and endosperm ensures optimal seed developmental coordination.
Matching journals
The top 3 journals account for 50% of the predicted probability mass.
Similar papers in this journal
- High-order mutants reveal an essential requirement for peroxidases but not laccases in Casparian strip lignification 96%
- The GPAT4/6/8 clade functions in Arabidopsis root suberization non-redundantly with the GPAT5/7 clade required for suberin lamellae 95%
- Molecular convergence by differential domain acquisition is a hallmark of chromosomal passenger complex evolution 95%
Similar papers in this journal
Similar papers in this journal
"Similar papers" are the closest papers from that journal in the model's embedding space. They show what the match is built on, but the ranking comes mostly from a classifier over the whole training set, not from these examples alone.