Ontology highlight
ABSTRACT:
PROVIDER: PRJNA1175636 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:Integrated metabolomic and transcriptomic analyses reveal different anthocyanin biosynthetic pathways in Fragaria nilgerrensis and Fragaria pentaphylla
| PRJNA606938 | ENA
Project description:Polygonatum odoratum (MILL.) DRUCE is rich in bioactive components with high medicinal value. To maximize the clinical benefits, it is of great significance to efficiently extract key bioactive components from appropriate growth stages in which they are most abundant. In this study, we analyzed the changes of metabolite accumulation and protein expression in P. odoratum rhizomes at different growth stages using targeted metabolomics combined with proteomics, and identified a total of 1,237 differentially abundant metabolites (DAMs). Flavonoids accumulated most in winter, and the biosynthesis pathways associated with flavonoids, isoflavonoids, flavones and flavonols exhibited significant differentially expressed proteins (DEPs). Among them, PGT, FLS, CYP75B1, HIDH, IF7MAT, and UFT73C6 were positively correlated with flavonoid accumulation. Steroid saponins accumulated most in spring, and the biosynthetic pathways of steroid and brassinosteroid biosynthesis exhibited DEPs. Among them, FDFT1, TM7SF2, DHCR7, CAS1, and 3BETAHSDD were positively correlated with steroidal saponin accumulation. In summary, these results revealed the accumulation of secondary metabolites P. odoratum in different growth stages, which can provide an effective reference for the extraction of specific bioactive components and the study of their regulatory mechanisms.
2024-12-13 | PXD058889 |
Project description:Polygonatum odoratum (MILL.) DRUCE is rich in bioactive components with high medicinal value. To maximize the clinical benefits, it is of great significance to efficiently extract key bioactive components from appropriate growth stages in which they are most abundant. In this study, we analyzed the changes of metabolite accumulation and protein expression in P. odoratum rhizomes at different growth stages using targeted metabolomics combined with proteomics, and identified a total of 1,237 differentially abundant metabolites (DAMs). Flavonoids accumulated most in winter, and the biosynthesis pathways associated with flavonoids, isoflavonoids, flavones and flavonols exhibited significant differentially expressed proteins (DEPs). Among them, PGT, FLS, CYP75B1, HIDH, IF7MAT, and UFT73C6 were positively correlated with flavonoid accumulation. Steroid saponins accumulated most in spring, and the biosynthetic pathways of steroid and brassinosteroid biosynthesis exhibited DEPs. Among them, FDFT1, TM7SF2, DHCR7, CAS1
2024-12-14 | PXD058887 |
Project description:We have performed a transcriptome analysis of genes at three different ripening stages of the pink-white fruits and the ripe stage of the red fruits of Chinese bayberry. This analysis provided a total of 119,701 unigenes, of which 41.43% were annotated in the Nr database. Our results showed that the formation of the pink-white color in Chinese bayberry fruits depended on the anthocyanin metabolic pathway, regulated by MYB1. Downregulated expression of key anthocyanin biosynthetic pathway genes, such as UFGT, F3’H, and ANS at the late stage of fruits development compared with DK3 fruits resulted in the failure to form red fruits. Our findings shed light on the regulatory mechanisms and metabolic processes that control color development in the fruits of Chinese bayberry.
2018-10-09 | GSE120925 | GEO
Project description:Biofilms are structured communities of tightly associated cells that constitute thepredominant state of bacterial growth in naturaland human-madeenvironments. Although the core genetic circuitry that controls biofilm formation in model bacteria such as Bacillus subtilishas been well characterized, little is known about the role that metabolism plays in this complex developmental process. Here, weperformed a time-resolved analysisof the metabolic changes associated with pellicle biofilm formation and development inB. subtilisby combining metabolomic, transcriptomic, and proteomic analyses. We report a surprisingly widespread and dynamic remodeling of metabolism affecting central carbon metabolism, primary biosynthetic pathways, fermentation pathways, and secondary metabolism. Most of these metabolic alterations were hithertounrecognized as biofilm-associated.For example, we observed increased activity of the tricarboxylic acid (TCA) cycle during early biofilm growth, a shift from fatty acid biosynthesis to fatty acid degradation, reorganization of iron metabolism and transport, and a switch from acetate to acetoin fermentation. Close agreement between metabolomic, transcriptomic, and proteomic measurements indicated that remodeling of metabolism during biofilm development was generally controlled at the transcriptional level. Our resultsalsoprovide insights into the transcription factors and regulatory networks involved in thiscomplexmetabolic remodeling. Following upon these results, we demonstrate that acetoin production via acetolactate synthase is essential for robust biofilm growthand has the dual role of conservingredox balance and maintaining extracellularpH.This study represents a comprehensive systems-level investigation of the metabolic remodeling occurring during B. subtilisbiofilm development that will serve as a useful roadmap for future studies on biofilm physiology.
2019-04-30 | PXD013307 | Pride
Project description:This study investigates the effects of cyclodipeptide on fungal and nematode metabolism, specifically focusing on its impact on membrane composition and metabolic responses. Metabolomic profiles of treated and untreated fungal cultures were compared to unravel the molecular changes induced by cyclodipeptide, with a particular emphasis on membrane phospholipids such as monoolein and phosphatidyl ethanolamine, as well as other plasma membrane components like ergosterol and its derivative products. The results reveal significant alterations in the metabolites present in the presence of cyclodipeptide. Specifically, the levels of cyclo (Pro-Tyr) monoolein were found to decrease, while phosphatidyl ethanolamine levels increased. Moreover, the levels of ergosterol and its derivatives were observed to decrease as well. These findings indicate that cyclodipeptide has a profound impact on the metabolic pathways of the fungal system under investigation. The study suggests that cyclodipeptide not only influences membrane phospholipids but may also have broader effects on membrane proteins, cellular signaling, and communication. Furthermore, the observed changes in metabolomic profiles hint at potential alterations in cellular processes beyond membrane composition, possibly involving gene expression and enzyme activity. Understanding the mechanisms behind these effects holds considerable scientific interest and practical implications. The ability of cyclodipeptide to selectively target membrane components presents opportunities for studying and manipulating membrane function in various organisms. Additionally, the discovery of new bioactive natural products like cyclodipeptide opens avenues for developing innovative therapeutics or agricultural agents. Further research is needed to fully comprehend the intricate mechanisms underlying the observed effects of cyclodipeptide on fungal metabolism.
2023-07-23 | GSE237224 | GEO