flavonol glycoside/nicotiana

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The Tapetal Major Facilitator NPF2.8 is Required for Accumulation of Flavonol Glycosides on the Pollen Surface in Arabidopsis thaliana.

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The exine of angiosperm pollen grains is usually covered by a complex mix of metabolites including pollen-specific hydroxycinnamic acid amides (HCAAs) and flavonoid glycosides. Whereas the biosynthetic pathways resulting in the formation of HCAAs and flavonol glycosides have been characterized, it

Discovery of UDP-Glycosyltransferases and BAHD-Acyltransferases Involved in the Biosynthesis of the Antidiabetic Plant Metabolite Montbretin A.

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Plant specialized metabolism serves as a rich resource of biologically active molecules for drug discovery. The acylated flavonol glycoside montbretin A (MbA) and its precursor myricetin 3-O-(6'-O-caffeoyl)-glucosyl rhamnoside (mini-MbA) are potent inhibitors of human pancreatic α-amylase and are

Sequence analysis of a "true" chalcone synthase (chs_H1) oligofamily from hop (Humulus lupulus L.) and PAP1 activation of chs_H1 in heterologous systems.

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Screening of a cDNA library of the hop cv. Osvald's 72 and genomic cloning were used to isolate members of an oligofamily of chs_H1 genes that codetermine the biosynthesis of prenylated chalcones known to be valuable medicinal compounds present in hop (Humulus lupulus L.). chs_H1 oligofamily members

HlMyb3, a putative regulatory factor in hop (Humulus lupulus L.), shows diverse biological effects in heterologous transgenotes.

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A hop-specific cDNA library from glandular tissue-enriched hop cones was screened for Myb transcription factors. cDNA encoding for R2R3 Myb, designated HlMyb3, was cloned and characterized. According to the amino acid (aa) sequence, HlMyb3 shows the highest homology to GhMyb5 from cotton and is

Cloning and molecular analysis of HlbZip1 and HlbZip2 transcription factors putatively involved in the regulation of the lupulin metabolome in hop (Humulus lupulus L.).

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Hop (Humulus lupulus L.), the essential source of beer flavor is of interest from a medicinal perspective in view of its high content in health-beneficial terpenophenolics including prenylflavonoids. The dissection of biosynthetic pathway(s) of these compounds in lupulin glands, as well as its

Four flavonoid glycosyltransferases present in tea overexpressed in model plants Arabidopsis thaliana and Nicotiana tabacum for functional identification.

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Tea possesses a distinctive flavor profile and can have health benefits owing to the high levels of flavonoids in its leaves. However, the mechanism of the flavonoid glycosylation hasn't been well studied in tea plants, especially glycosylation at the 7-OH site has rarely been reported. In this

Complete Biosynthesis of the Anti-Diabetic Plant Metabolite Montbretin A

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Diabetes and obesity are affecting human health worldwide. Their occurrence is increasing with lifestyle choices, globalization of food systems, and economic development. The specialized plant metabolite montbretin A (MbA) is being developed as an anti-diabetes and anti-obesity treatment due to its

UGT79B31 is responsible for the final modification step of pollen-specific flavonoid biosynthesis in Petunia hybrida.

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UNASSIGNED UGT79B31 encodes flavonol 3- O -glycoside: 2″- O -glucosyltransferase, an enzyme responsible for the terminal modification of pollen-specific flavonols in Petunia hybrida. Flavonoids are known to be involved in pollen fertility in petunia (P. hybrida) and maize (Zea mays). As a first step

Biosynthesis of the anti-diabetic metabolite montbretin A: glucosylation of the central intermediate mini-MbA.

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Type 2 diabetes (T2D) affects over 320 million people worldwide. Healthy lifestyles, improved drugs and effective nutraceuticals are different components of a response against the growing T2D epidemic. The specialized metabolite montbretin A (MbA) is being developed for treatment of T2D and obesity

Flavonol Biosynthesis Genes and Their Use in Engineering the Plant Antidiabetic Metabolite Montbretin A.

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The plant metabolite montbretin A (MbA) and its precursor mini-MbA are potential new drugs for treating type 2 diabetes. These complex acylated flavonol glycosides only occur in small amounts in the corms of the ornamental plant montbretia (Crocosmia × crocosmiiflora). Our goal is to

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