Plant ferredoxin PhFd gene and application thereof

The invention discloses a plant ferredoxin PhFd gene and application thereof. The PhFd gene comprises a nucleotide sequence as shown in SEQ ID NO.1 in a sequence table; a CRISPR/Cas9 knockout vector of the plant ferredoxin PhFd gene is transferred into agrobacterium tumefaciens, and petunia hybrida is mediated and transformed by the agrobacterium tumefaciens to obtain a PhFd gene knockout plant so as to regulate the flowering phase of the petunia hybrida and delay senescence. Experiments prove that the PhFd has functions in the petunia petunia petal senescence process, and prove that the gene has a remarkable effect in delaying petunia petunia petal senescence. 本发明公开一种植物铁氧还蛋白PhFd基因及其应用，所述PhFd基因包括如序列表SEQ ID NO.1所示的核苷酸序列；植物铁氧还蛋白PhFd基因的CRISPR/Cas9敲除载体转入农杆菌，通过农杆菌介导转化矮牵牛，得到了PhFd基因敲除植株，以调控矮牵牛花期延缓衰老。通过实验证明PhFd在矮牵牛花瓣衰老过程具有的功能，证明该基因在延缓矮牵牛花瓣衰老中具有显著的效果。