Involvement of Calcium and Calmodulin in Nitric Oxide-Regulated Senescence of Cut Lily Flowers.

ABSTRACT: Both nitric oxide (NO) and calcium ion (Ca²⁺)/calmodulin (CaM) have been shown to regulate the senescence of cut flowers. However, not much is known about the crosstalk between NO and Ca²⁺/CaM during the senescence of cut flowers. In this study, cut Oriental × Trumpet hybrid lily "Manissa" were used to investigate the roles and relationship between NO and Ca²⁺/CaM during postharvest freshness. The results show that the effects of CaCl₂ or NO donor SNAP on the vase life, maximum flower diameter and hours until full opening were dose-dependent, with an optimum concentration of 20 mM CaCl₂ or 100 μM SNAP. However, Ca²⁺ chelators EGTA or BAPTA/AM, Ca²⁺ channel inhibitors LaCl₃ or nifedipine and CaM antagoni

SUBMITTER: Zhang J 

PROVIDER: S-EPMC6129963 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature