Zeatin Regulates Somatic Embryogenesis in <i>Liriodendron sino-americanum</i> via <i>CYCD3</i>.

ABSTRACT: Somatic embryogenesis (SE) is a crucial strategy for in vitro regeneration in woody plants, yet its efficiency is affected by multiple factors, and the underlying regulatory mechanisms remain insufficiently understood. In this study, callus tissues from two Liriodendron sino-americanum genotypes involving different hybrid combinations, ON-LoS and TN-LoS, were treated with varying concentrations (0, 0.005, 0.01, 0.05 mg/L) of exogenous zeatin (ZT) to evaluate its regulatory effect on SE. Treatment with 0.01 mg/L ZT significantly promoted SE in ON-LoS but suppressed it in TN-LoS, indicating that ZT elicited divergent regulatory effects on SE between the two genotypes. To explore the molecular basis of this divergence, transcriptome analysis was conducted at the early stage of SE. Diff

SUBMITTER: Tang Y 

PROVIDER: S-EPMC12473157 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature