Dynamic proteomics reveals that endosperm weakening plays a critical role during seed germination in <i>Polygonatum cyrtonema</i> Hua.

ABSTRACT:

Introduction

Polygonatum cyrtonema Hua, a valued Chinese medicinal herb, faces challenges in cultivation and seedling quality due to seed dormancy, a combinational type resulting from multiple factors whose molecular mechanisms remain unclear.

Methods

This study employed iTRAQ-based proteomics, transcriptomics, and hormone profiling to analyze three key germination stages (S1, pulp removal and initial imbibition. S2, radicle emergence through the seed coat. S3, transition phase between primary root elongation and cotyledon emergence).

Results

Morphological observations indicated gradual endosperm weakening and embryo development during germination. Transcriptomics highlighted 30 enriched pathways, notably plant hormone signaling and starch and sucrose metabolis

SUBMITTER: Xu H 

PROVIDER: S-EPMC12670176 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature