Spraying methyl jasmonate before harvesting can significantly increase the content of icariin in an important leaf medicinal herb, Epimedium sagittatum, by activating the expression of genes involved in flavonoid synthesis pathways.

Background: Increased icariin content during the harvesting period is one of the factors limiting the quality improvement of Epimedium sagittatum, and there is currently a lack of scientific and effective biotechnological measures.

Results: In this study, we carried out experiments involving spraying different concentrations (0 µmol·L as control group, 500 µmol·L, 1000 µmol·L and 1500 µmol·L) of methyl jasmonate (MeJA) solution on E. sagittatum leaves.

[Genome-wide identification of Atropa belladonna WRKY transcription factor gene family and analysis of expression patterns under light and temperature regulation].

Based on whole genome data, the identification and expression pattern analysis of the Atropa belladonna WRKY transcription factor family were conducted to provide a theoretical foundation for studying the biological functions and mechanisms of these transcription factors. In this study, bioinformatics methods were employed to identify members of the A. belladonna WRKY gene family and to predict their physicochemical properties, conserved motifs, promoter cis-acting elements, and chromosomal localization.

Regulation of gene expression in the secondary metabolic synthesis pathway of Flos by yeast polysaccharides.

Unlabelled: Flos is a valuable herb in the Lonicerae family. While transcriptomic studies on have focused on different tissues (stems, leaves, flowers) or flowering stages, few have investigated the molecular mechanisms underlying chemical composition synthesis influenced by exogenous factors, such as foliar fertilization. Moreover, most transcriptomic studies on have been conducted on chlorogenic acid and luteoloside, and the molecular synthesis mechanism of the overall chemical composition has not been analyzed.

A Comprehensive Analysis to Elucidate the Effects of Spraying Mineral Elements on the Accumulation of Flavonoids in during the Harvesting Period.

The harvesting period is a critical period for the accumulation of flavonoids in the leaves of the important medicinal plant . In this study, we conducted an experiment on leaves sprayed with mineral elements with the aim of improving the quality of the herbal leafage during the harvesting period. We elucidated the changes in flavonoids (icariin, epimedin A, epimedin B, and epimedin C) in leaves.