Calcium signaling facilitates chilling- and GA- induced dormancy release in tree peony.

ABSTRACT: Calcium plays a crucial role in plant growth and development, yet little is known about its function in endodormancy regulation. Tree peony (Paeonia suffruticosa), characterized by compound buds and large flowers, is well-known for its ornamental and medicinal value. To break bud dormancy release is a prerequisite of flowering and forcing culture, particularly during the Spring Festival. In this study, the Ca²⁺ chelator EGTA and Ca²⁺ channel blocker LaCl₃ were applied, resulting in a significant delay in budburst during both chilling- and gibberellin (GA)- induced dormancy release in a dosage-dependent manner. As expected, the retardation of bud break was recovered by the supplementation of 30 mM CaCl₂, indicating a facilitating role of ca

SUBMITTER: Gai W 

PROVIDER: S-EPMC10985203 | biostudies-literature | 2024

REPOSITORIES: biostudies-literature