A Rehmannia glutinosa caffeic acid O-methyltransferase functional identification: Reconstitution of the ferulic acid biosynthetic pathway in Saccharomyces cerevisiae using Rehmannia glutinosa enzymes.

Rehmannia glutinosa produces many pharmacological natural components, including ferulic acid (FA) which is also an important precursor of some medicinal ingredients, so it is very significant to explore FA biosynthesis for enhancing the production of FA and its derivations. This study aimed to determine and reconstitute the R. glutinosa FA biosynthetic pathway from phenylalanine (Phe) metabolism in Saccharomyces cerevisiae as a safe host for the biosynthesis of plant-derived products.

[Effects of warming on physicochemical property of branch and leaf litter in subtropical plantation].

At the regional scale, substrate properties are the key factors driving litter decomposition rate. In this study, soil temperature was increased by buried heating cables to explore the impacts of climate warming on the physical and chemical properties in branch and leaf of litter. The results showed that after 5 years of soil warming (4 ℃), the contents of nitrogen (N), phosphorus (P) and water-soluble substance in branch litter increased by 35.