Bioinformatics analysis of copalyl diphosphate synthase in Salviae Miltiorrhizae Radix et Rhizoma Functional Characterization of ApCPS Involved in Andrographolides Biosynthesis by Virus-induced Gene Silencing GhCPS and GhKS Encoding Gibberellin Biosynthesis Enzymes Involve in Inhibition of Leaf Growth by Mepiquat Chloride in Cotton (Gossypium hirsutum L.) Study on active components of Andrographis paniculata at various growth periodsand differential expression of key enzyme gene