نتایج جستجو برای: triterpenoid saponins
تعداد نتایج: 6073 فیلتر نتایج به سال:
Panax japonicus C. A. Mey. is one of the rare traditional Chinese herbal medicines; its main active ingredient is ginsenosides. β-amyrin synthase (βAS) is the rate-limiting enzyme in the biosynthesis pathway of oleanane-type ginsenosides. We cloned for the first time the full-length cDNA of βAS from P. japonicus (GenBank: KP658156) using reverse transcription-polymerase chain reaction (RT-PCR) ...
BACKGROUND The diamondback moth (DBM, Plutella xylostella) is a crucifer-specific pest that causes significant crop losses worldwide. Barbarea vulgaris (Brassicaceae) can resist DBM and other herbivorous insects by producing feeding-deterrent triterpenoid saponins. Plant breeders have long aimed to transfer this insect resistance to other crops. However, a lack of knowledge on the biosynthetic ...
Panax notoginseng has been extensively used as a traditional Chinese medicine. In the current study, molecular cloning and characterization of PnbHLH1 transcription factor were explored in Panax notoginseng. The full length of the PnbHLH1 gene obtained by splicing was 1430 bp, encoding 321 amino acids. Prokaryotic expression vector pET-28a-PnbHLH1 was constructed and transferred into the BL21 p...
Considering that exogenously applied methyl jasmonate can enhance secondary metabolite production in a variety of plant species and that 2,3-oxidosqualene is a common precursor of triterpenes and sterols in plants, we have studied Centella asiatica and Galphimia glauca (both synthesizing triterpenoid secondary compounds) and Ruscus aculeatus (which synthesizes steroidal secondary compounds) for...
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