ABSTRACT
Drought stress could significantly affect the growth of medical plants, while moderate drought stress can effectively improve the quality of medicinal plants. Recently Herbgenomics promotes innovative research on the molecular mechanism for the quality of medicinal plants affected by drought stress. Here, we summarized the effects of drought stress on active compounds including alkaloids, flavonoids, terpenoids, phenols and saponins, and biomass of medicinal plants. Moreover, the studies on the quality of medicinal plants affected by drought stress using Herbgenomic technologies, the reactive oxygen species metabolism, and ABA signaling pathway, were reviewed. It is proposed to reveal the molecular mechanism for the quality of medicinal plants affected by drought stress, and to explore molecular markers closely related to drought-tolerance traits using medicinal model plant system based on Herbgenomics. This review provides a theoretical basis for improving the quality of medicinal plants, breeding of drought-tolerant medicinal plants and guiding agricultural production of traditional Chinese medicine.
ABSTRACT
Total proteins of Changbai Mountain hazelnut were extracted and then enzymolysed in solution. The mixture of peptides was separated on chromatograph and identified by shotgun proteomics approach. The identified proteins were analyzed by bioinformatics, 303 proteins were identified, of which 237 proteins (78.2%) were mainly distributing in a range of 10-70 kDa and 85 proteins (28.1%) were around pI 5-6. Based on the biological process cellular component and molecular function, these proteins were classified by Gene Ontology, the results showed that 183 proteins (73.8%) had catalytic activity (e.g. oxidoreductase, kinase, peptidase, etc.), and 170 proteins (68.5%) had binding activity. The protein profile provided a valuable basis for further research of hazelnut proteins and opened up new research avenues related to the function of these proteins.
