%0 Journal Article %T Molecular characterisation of nerol dehydrogenase gene (PmNeDH) from Persicaria minor in response to stress-related phytohormones %A Cheng Seng Tan %A Chyan Leong Ng %A Ismanizan Ismail %A Jin Kiat Chew %A Maizom Hassan %A Nur-Athirah Abd-Hamid %A Zamri Zainal %J Journal of Plant Interactions %D 2019 %R https://doi.org/10.1080/17429145.2019.1638457 %X ABSTRACT Citral is a mixture of neral and geranial, which are of great interest to the fragrance industry due to its lemon-scented aroma. A newly characterized nerol dehydrogenase of Persicaria minor (PmNeDH) from our recent findings has shown a capacity to convert citral from nerol. Differential gene expression analysis revealed that the expression level of PmNeDH was highly upregulated during early treatment of several stress-related phytohormones i.e. methyl jasmonate (MeJA), salicylic acid (SA) and abscisic acid (ABA). SA and ABA were shown to have a prolonged effect on PmNeDH expression level until second day of treatment. The findings were in agreement with the cis-regulatory elements predicted from the gene promoter. The phylogenetic relationship of PmNeDH with its homologs from the medium-chain dehydrogenases/reductases (MDR) superfamily was also mentioned. In this study, we proposed a possible biological function of PmNeDH gene in P. minor, which might play significant roles in plant defence mechanism %U https://www.tandfonline.com/doi/full/10.1080/17429145.2019.1638457