Improving coriander yield and quality with a beneficial bacterium

Plant growth-promoting rhizobacteria (PGPR) are soil microbes that can promote plant growth and/or increase plant resistance to one or multiple stress conditions. These natural resources are environmentally friendly tools for reducing the use of chemical fertilizers and pesticides and for improving the nutritional quality of plants, including pharmacological metabolites. Coriander (Coriandrum sativumL.), commonly known as cilantro or Chinese parsley, is a worldwide culinary and medicinal plant with both nutritional and medicinal properties. Little is known about how PGPR may promote plant growth or affect metabolite profiles in coriander. Here, by usingAeromonassp. H1 that is a PGPR strain, we investigate how coriander yield and quality could be affected by PGPR with transcriptome insights. To gain mechanistic insights into the H1-induced growth promotion, we profiled the coriander transcriptome by mRNA sequencing at 8-DAT when the growth promotion was about to become apparent. In detail, the aerial parts of the coriander plants were harvested at 8 DAT (days after H1 treatment) and total RNA was extracted using the Eastep Super Total RNA Extraction Kit (Promega). The aerial parts from 4 plants were harvested as 1 biological replicate and each sample contains 3 biological replicates.