Publications by authors named "Peiwang Li"

Ricinus communis, a plant of significant industrial value for its oil, is renowned for its robust root system and vigorous growth, qualities that render it an exemplary candidate for the ecological remediation of soils contaminated with heavy metals. The impact of heavy metal stress on root development is characterized by inhibition, a phenomenon whose underlying mechanisms are not fully elucidated. To shed light on this, a study was conducted wherein varying concentrations of the exogenous auxin, IBA, were applied to the roots of Ricinus communis to scrutinize its influence on the endogenous indole-3-acetic acid (IAA) metabolism in seedlings and to delineate the molecular underpinnings of its effects on root morphology.

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The , a woody oil plant, has garnered attention for its oil-rich fruit, which exhibits potential for both oil production and ecological restoration endeavors, thereby presenting substantial developmental value. However, the comprehension of the distinctive oil biosynthesis and deposition strategies within the fruit's various compartments, coupled with the tissue-specific biosynthetic pathways yielding optimal fatty acid profiles, remains in its infancy. This investigation was designed to delineate the tissue specificity of oil biosynthetic disparities and to elucidate the molecular underpinnings within the fruit mesocarp and seeds of , employing lipidomic and transcriptomic analyses.

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Background: The Pickering emulsion delivery technique is widely acknowledged for its efficacy in serving as a carrier that can encapsulate functional components effectively. Previous studies have shown significant differences in the stability of Pickering emulsions composed of different oil phases and in the bioaccessibility of the encapsulated functional ingredients. This study therefore investigated the effects of different carrier oils in the betulin self-stabilized water-in-oil (W/O) Pickering emulsion on the stability of the emulsion and bioaccessibility of betulin.

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The (soapberry) kernel is rich in oil that has antibacterial, anti-inflammatory, and antioxidant properties, promotes cell proliferation, cell migration, and stimulates skin wound-healing effects. oil has excellent lubricating properties and is a high-quality raw material for biodiesel and premium lubricants, showing great potential in industrial and medical applications. Metabolite and transcriptome analysis revealed patterns of oil accumulation and composition and differentially expressed genes (DEGs) during seed development.

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are reported to exhibit seed dormancy, which impedes its cultivation and widespread adoption. In this study, a comprehensive method was established to overcome seed dormancy by subjecting seeds to scarification in 98% HSO for 10 min, followed by 1000 mg·L GA soaking for 48 h and stratification at 4 °C for 100 days. The seed germination percentage has increased significantly, to a peak of 42.

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Pentacyclic triterpenes show potential as oleogelators, but their combination with various vegetable oils has limited research. This study selected linseed, rapeseed, sunflower, coconut, and palm oils to combine with the triterpenoid compound β-amyrin for the preparation of oleogels. The stability, crystal network structure, and other properties of each oleogel were evaluated.

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Article Synopsis
  • The study focuses on understanding seed dormancy in a desirable oil species used for biodiesel and edible oil, highlighting its implications for germplasm preservation and breeding efforts.
  • It investigates the effects of seed anatomy, particularly the endocarp's impermeability and the presence of endogenous inhibitors, on the ability of seeds to germinate.
  • The findings suggest that both mechanical restrictions from the endocarp and physiological dormancy caused by natural inhibitors play critical roles in the seed dormancy observed in this species.
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  • Hunan's woody oil resources produce kernels rich in C10-12 fatty acids, which are used to create aliphatic hydroxamic acids (AHAs) through chemical reactions.
  • AHA was found to be a more effective collector in the flotation process for wolframite compared to traditional collectors like benzoyl hydroxamic acid (BHA).
  • The study showed that AHA adsorbs on Fe(III)-activated wolframite surfaces, enhancing their hydrophobicity and enabling better flotation due to a unique five-member ring structure in its adsorption.
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Squalene is an important triterpene with a wide range of applications. Given the growing market demand for squalene, the development of microbial cell factories capable of squalene production is considered a sustainable method. This study aimed to investigate the squalene production potential of Yarrowia lipolytica.

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is an oil plant exhibiting tissue-specific variations in oil content and fatty acid composition across the whole fruit (mainly pulp and seed). And its oil synthesis is intricately linked to the accumulation and transformation of sugars. Nevertheless, there remains a dearth of understanding regarding how sugar metabolism impacts oil synthesis in fruit.

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fruits are extensively grown worldwide, with a large harvest, and its major medicinal ingredients are geniposide and crocins. Research on their accumulation and biosynthsis-related enzymes is rare. In this study, the accumulation of geniposide and crocin of fruits at different developmental stages were clarified by HPLC.

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Ursolic acid (UA), a pentacyclic triterpenoid, has gained attentions due to its various health-promoting benefits, but exhibits poor bioavailability. This could be enhanced by changing the food matrix of UA in which it is present. In this study, several UA systems were constructed to investigate the bioaccessibility and bioavailability of UA in combination with in vitro simulated digestion and Caco-2 cell models.

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  • The study investigates sugar accumulation in two chestnut varieties (CBYZ and AY01) with different sugar contents during their development stages.
  • The research measured sugar and starch levels and related enzyme activities at various intervals after flowering to understand their metabolic processes.
  • Key findings revealed 24 differentially expressed genes associated with sugar biosynthesis, showing that certain genes were upregulated in the high-sugar variety, leading to increased starch and sugar content, while others were downregulated in the low-sugar variety, causing rapid sugar fermentation.
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  • TRPC channels are key membrane proteins that influence calcium signaling and are important in various physiological and pathological functions.
  • Researchers discovered that two small molecules, M085 and GSK1702934A, activate TRPC6 by binding to specific extracellular sites formed by the pore helix and transmembrane helix S6.
  • Mutations in these regions significantly decreased the effectiveness of these compounds, indicating that the interaction between the small molecules and these sites is crucial for TRPC6 regulation.
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The enhancement of nitrogen fixation activity of diazotrophs is essential for safe crop production. Lysine succinylation (K) is widely present in eukaryotes and prokaryotes and regulates various biological process. However, knowledge of the extent of K in nitrogen fixation of is scarce.

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Highly conserved amino acids are generally anticipated to have similar functions across a protein superfamily, including that of the P2X ion channels, which are gated by extracellular ATP. However, whether and how these functions are conserved becomes less clear when neighboring amino acids are not conserved. Here, we investigate one such case, focused on the highly conserved residue from P2X4, E118 (rat P2X4 numbering, rP2X4), a P2X subtype associated with human neuropathic pain.

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  • The research focuses on improving squalene production in the yeast Yarrowia lipolytica through genetic and process engineering techniques.
  • The team initially overexpressed HMG-CoA reductase, leading to a production of 208.88 mg/L squalene, and then achieved a higher production of 439.14 mg/L by also co-overexpressing diacylglycerol acyltransferase.
  • After optimizing the fermentation medium and adding specific compounds, the best yield reached an impressive 731.18 mg/L, marking the highest squalene production reported in this yeast and laying groundwork for more efficient production methods.
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To improve essential oil quality, especially to reserve the thermal instability of compounds, supercritical CO extraction (SFE) was applied to recover essential oil from leaves. A response surface methodology was applied to optimize the extraction process. The highest essential oil yield was predicted at extraction time 120  min, extraction pressure 25  MPa, extraction temperature 35°C, and CO flow 18  L/h for the SFE processing.

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sp. strain ODB01, which was isolated from the Changqing oil field, can degrade crude oil efficiently and use crude oil as its sole source of carbon and energy. We report the complete genome sequence of ODB01.

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Background: Symplocos paniculata, asiatic sweetleaf or sapphire berry, is a widespread shrub or small tree from Symplocaceae with high oil content and excellent fatty acid composition in fruit. It has been used as feedstocks for biodiesel and cooking oil production in China. Little transcriptome information is available on the regulatory molecular mechanism of oil accumulation at different fruit development stages.

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Plant microRNAs (miRNAs) are single-stranded RNA molecules of around 22 nucleotides (nt) in length that are associated with the RNA-induced silencing complex (RISC). They act as post-transcriptional negative regulators of gene expression mainly by guiding cleavage or attenuating the translation of target transcripts. The targets of plant miRNAs often belong to transcription factors families involved in the control of developmental processes and defense responses.

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