Shu‐Zon Wu

The Sulfated PSY Peptide Negatively Regulates Receptor Kinase Activity to Promote Growth

In Physcomitrium patens, genetic evidence suggests sulfated PSY peptide binding inactivates its receptor kinases rather than activating them; kinase-dead receptors rescue tpst mutants, while receptor overexpression phenocopies loss of sulfation.

Evidence for Early Evolution of Sulfated Peptide Signaling in Plant Development

The paper shows that sulfotyrosyl peptide signaling via TPST is essential for plant development in Physcomitrium patens, with conserved function across species.

Septin-mediated coupling of protein import and division during chloroplast evolution

This study identifies SEP1, a septin in Chlamydomonas reinhardtii, as a coordinator of chloroplast protein import and division, showing its evolutionary conservation and functional interaction with TOC GTPases.