[Objective] This study aimed to investigate the effects of two signals, H2O2 and NO, on flowering and FT gene expression in off-season longan. [ Method] Nine-year-old off-season longan ＇ Shixia＇ was used as the expe...[Objective] This study aimed to investigate the effects of two signals, H2O2 and NO, on flowering and FT gene expression in off-season longan. [ Method] Nine-year-old off-season longan ＇ Shixia＇ was used as the experimental material and sprayed with signal promoting agent and blocking agent to analyze the dynamic changes of flowering and FT gene expression level. [ Result] The expression level of FT gene in off-season longan increased during the flowering process, and the expression level of FT gene in leaves reached the peak earlier than that in terminal buds. SNP and MV treatments improved FT gene expression in varying degrees. DMTU and L-NNA treatments effectively inhibited FT gene expression in terminal buds, but the inhibitory effects on FT gene expression in leaves were not significant at late stage of flower bud differentiation. [Condusion] According to the flowering performance of longan, H2O2 and NO play an important role in promoting and accelerating longan flowering.展开更多
基金Supported by National Nonprofit Institute Research Grant of CATAS-TCGRI(1630032014017)Special Fund for Agro-scientific Research in the Public Interest(201003021)China Agriculture Research System(CARS-33-25)
文摘[Objective] This study aimed to investigate the effects of two signals, H2O2 and NO, on flowering and FT gene expression in off-season longan. [ Method] Nine-year-old off-season longan ＇ Shixia＇ was used as the experimental material and sprayed with signal promoting agent and blocking agent to analyze the dynamic changes of flowering and FT gene expression level. [ Result] The expression level of FT gene in off-season longan increased during the flowering process, and the expression level of FT gene in leaves reached the peak earlier than that in terminal buds. SNP and MV treatments improved FT gene expression in varying degrees. DMTU and L-NNA treatments effectively inhibited FT gene expression in terminal buds, but the inhibitory effects on FT gene expression in leaves were not significant at late stage of flower bud differentiation. [Condusion] According to the flowering performance of longan, H2O2 and NO play an important role in promoting and accelerating longan flowering.
