Study on the effects of endogenous polyphenols on the structure, physicochemical properties and in vitro digestive characteristics of Euryales Semen starch based on multi-spectroscopies, enzyme kinetics, molecular docking and molecular dynamics simulation.

Euryales Semen (ES) is a highly nutritious food with low digestibility, which is closely associated with its endogenous phenolic compounds. In this study, five phenolic compounds (naringenin, isoquercitrin, gallic acid, epicatechin and quercetin) with high concentrations in ES were selected to prepare starch-polyphenol complexes. Subsequently, the effects of endogenous polyphenols on the structure, physicochemical properties and digestion characteristics of ES starch were studied using multiple techniques.

Impact of Methyl Jasmonate on Terpenoid Biosynthesis and Functional Analysis of Sesquiterpene Synthesis Genes in .

This study investigates the impact of methyl jasmonate (MeJA) on the volatile oil composition of and elucidates the function of the gene, a key player in terpenoid biosynthesis. The effect of different concentrations of MeJA (0, 50, 100, 200, and 300 μmol/L) on the growth of adventitious bud clusters was analyzed over a 20 d period. Using gas chromatography-mass spectrometry (GC-MS), 17 compounds were identified from the adventitious bud clusters of .

Transcription factor StWRKY1 is involved in monoterpene biosynthesis induced by light intensity in Schizonepeta tenuifolia Briq.

Menthone-type monoterpenes are the main active ingredients of Schizonepeta tenuifolia Briq. Previous studies have indicated that light intensity influences the synthesis of menthone-type monoterpenes in S. tenuifolia, but the mechanism remains unclear.

Heat Stress and Microbial Stress Induced Defensive Phenol Accumulation in Medicinal Plant .

An approach based on the heat stress and microbial stress model of the medicinal plant was proposed to elucidate the regulation and mechanism of bioactive phenol accumulation. This method integrates LC-MS/MS analysis, 16S rRNA sequencing, RT-qPCR, and molecular assays to investigate the regulation of phenolic metabolite biosynthesis in rhizome (SL) under stress. Previous research has shown that the metabolites and genes involved in phenol biosynthesis correlate to the upregulation of genes involved in plant-pathogen interactions.

[Accumulation and biosynthesis mechanism of volatile oils in glandular scale of Agastache rugosa].

The volatile oils are the effective components of Agastache rugosa, which are stored in the glandular scale. The leaves of pulegone-type A. rugosa were used as materials to observe the leaf morphology of A.

[Identification and analysis of terpene synthase (TPS) gene family in Schizonepeta tenuifolia].

Terpenoids are important secondary metabolites of plants that possess both pharmacological activity and economic value. Terpene synthases(TPSs) are key enzymes in the synthesis process of terpenoids. In order to investigate the TPS gene family members and their potential functions in Schizonepeta tenuifolia, this study conducted a systematic analysis of the TPS gene family of S.

Addition of venetoclax to myeloablative conditioning regimens for allogeneic hematopoietic stem cell transplantation in high-risk AML.

Background: Venetoclax monotherapy is an effective option for patients with acute myeloid leukemia (AML). Venetoclax has also been used in non-myeloablative conditioning allogeneic hematopoietic stem cell transplantation (allo-HSCT) for high-risk AML with a tolerable toxicity profile. However, the efficacy and safety of a venetoclax-containing myeloablative conditioning (MAC) allo-HSCT regimen for high-risk AML have not been evaluated.

A chromosome-level genome assembly reveals that a bipartite gene cluster formed via an inverted duplication controls monoterpenoid biosynthesis in Schizonepeta tenuifolia.

Biosynthetic gene clusters (BGCs) are regions of a genome where genes involved in a biosynthetic pathway are in proximity. The origin and evolution of plant BGCs as well as their role in specialized metabolism remain largely unclear. In this study, we have assembled a chromosome-scale genome of Japanese catnip (Schizonepeta tenuifolia) and discovered a BGC that contains multiple copies of genes involved in four adjacent steps in the biosynthesis of p-menthane monoterpenoids.

Single-cell transcriptome of leaves reveal differentiation trajectories in glandular trichomes.

The peltate glandular trichomes (PGTs) on leaves can secrete and store bioactive essential oils. ScRNA-seq is a powerful tool for uncovering heterogeneous cells and exploring the development and differentiation of specific cells. Due to leaves rich in PGTs, the young leaves were used to isolated protoplasts and successfully captured 33,254 protoplasts for sequencing purposes.

Antifungal and Antibiofilm In Vitro Activities of Ursolic Acid on Cryptococcus neoformans.

Ursolic acid (UA) exists in a variety of medicinal plants. UA exhibits antimicrobial activity against several microorganisms; however, little is known regarding the potential antifungal effect of UA on Cryptococcus neoformans (C. neoformans).

Identification and characterization of a novel gene involved in glandular trichome development in .

is a medicinal plant rich in terpenoids and flavonoids with antiviral, immunoregulatory, and anti-inflammatory activities. The peltate glandular trichome (PGT) is a multicellular structure considered to be the primary storage organ for monoterpenes; it may serve as an ideal model for studying cell differentiation and the development of glandular trichomes (GTs). The genes that regulate the development of GTs have not yet been well studied.

Relationship Between Antibiotic Resistance, Biofilm Formation, and Biofilm-Specific Resistance in Isolates from Ningbo, China.

Purpose: Several pathotypes still constitute an important public health concern owing to its pathogenicity and antimicrobial resistance. Moreover, biofilm formation of can allow the strains to interfere with host and antimicrobial eradication, thus conferring additional resistance. The association between the formation of biofilm and antimicrobial resistance determinants has been extensively exploited; nevertheless, there is still no definite conclusion.

Comparison of Pulegone and Estragole Chemotypes Provides New Insight Into Volatile Oil Biosynthesis of .

The aerial parts of are rich in essential oils containing monoterpenoids, phenylpropanoids, and aromatic compounds. These are used as herbs, perfume plants, and ornamental plants. Based on the difference in the constituents of the essential oil, is divided into pulegone and estragole chemotypes, but the mechanism of key metabolite biosynthesis in these two chemotypes remains unclear.

Corrigendum: Functional Characterization and Structural Insights Into Stereoselectivity of Pulegone Reductase in Menthol Biosynthesis.

[This corrects the article DOI: 10.3389/fpls.2021.

Functional Characterization and Structural Insights Into Stereoselectivity of Pulegone Reductase in Menthol Biosynthesis.

Monoterpenoids are the main components of plant essential oils and the active components of some traditional Chinese medicinal herbs like Briq Briq (L.) Britt (Blanco) Benth. Pulegone reductase is the key enzyme in the biosynthesis of menthol and is required for the stereoselective reduction of the Δ double bond of pulegone to produce the major intermediate menthone, thus determining the stereochemistry of menthol.

[Expression profiling and functional verification of flavonoid 3'-hydroxylase gene from leaves of Euryale ferox].

Leaves of Euryale ferox are rich in anthocyanins. Anthocyanin synthesis is one of the important branches of the flavonoid synthesis pathway, in which flavonoid 3'-hydroxylase(F3'H) can participate in the formation of important intermediate products of anthocyanin synthesis. According to the data of E.

Integrating RNA-seq with functional expression to analyze the regulation and characterization of genes involved in monoterpenoid biosynthesis in Nepeta tenuifolia Briq.

Nepeta tenuifolia Briq. (Lamiaceae) is a medicinal plant historically used in the East Asia region to treat cold and fever, and it is currently used as a clinically effective treatment for respiratory diseases. We previously found that monoterpenoids are the dominant volatile secondary metabolites in N.

Multi-omics analysis of the bioactive constituents biosynthesis of glandular trichome in Perilla frutescens.

Background: Perilla frutescens (L.) Britt is a medicinal and edible plant widely cultivated in Asia. Terpenoids, flavonoids and phenolic acids are the primary source of medicinal ingredients.

[Study on Sparganium stoloniferum from different regions in China based on appearance characters and ISSR markers].

Based on the characteristics and ISSR molecular marker technology, the study is aimed to compare and perform genetic diversity analysis on Sparganium stoloniferum from 7 regions. Molecular identification method was established for S. stoloniferum from Hunan province.

Post-traumatic stress disorder symptoms after respiratory insufficiency in patients with myasthenia gravis.

To explore posttraumatic stress disorder symptoms (PTSD) after respiratory insufficiency in patients with myasthenia gravis (MG). The investigation was made with 134 adult patients with MG, after respiratory insufficiency, between January 2012 and January 2016 and had a return visit after one year. 134 patients finished this study and 69 patients (51.

Associations of depression, anxiety and PTSD with neurological disability and cognitive impairment in survivors of moyamoya disease.

Depression, anxiety and posttraumatic stress disorder (PTSD) are common complications of cerebrovascular diseases. However, they were seldom explored in Moyamoya Disease (MMD) survivors. In this study, we measured the prevalence of depression, anxiety and PTSD in MMD survivors.

Morphology of glandular trichomes of Japanese catnip (Schizonepeta tenuifolia Briquet) and developmental dynamics of their secretory activity.

Schizonepeta tenuifolia Briquet, commonly known as Japanese catnip, is used for the treatment of colds, headaches, fevers, and skin rashes in traditional Asian medicine (China, Japan and Korea). The volatile oil and its constituents have various demonstrated biological activities, but there is currently limited information regarding the site of biosynthesis. Light microscopy and scanning electron microscopy indicated the presence of three distinct glandular trichome types which, based on their morphological features, are referred to as peltate, capitate and digitiform glandular trichomes.