Trametes sanguinea belongs to the polyporaceae family and its fruiting body possesses several benefits. In the current study, Trametes sanguinea ZHSJ (T. sanguinea ZHSJ) isolated from the chestnut tree wood was studied for its whole genome sequence and transcriptome sequence with their annotations. T. sanguinea ZHSJ genome is 41.3243 Mb in length with a total of 135 contigs with N50 contig length 2.8138 Mb. A total of 10886 genes of T. sanguinea ZHSJ were annotated. Further, RNA sequencing and assembly represented 11861 genes, out of these 10,507 genes were annotated with four annotation databases. Moreover, denovo prediction annotation performed by Funannotate represented 12,268 coding genes and simple sequence repeats (SSR) prediction represented total 1,242 SSR and among them 707 were trinucleotide repeat motifs.
Hypertension is a major pathogenic contributor to cardiovascular diseases, primarily mediated through activation of the angiotensin-converting enzyme (ACE) system. Food-derived ACE-inhibitory peptides represent a promising alternative to synthetic drugs due to their favorable safety profile and minimal side effects. ACE-inhibitory peptides have been extensively identified from various foods, with their antihypertensive activity and molecular mechanisms comprehensively characterized through in vitro and in vivo studies. ACE-inhibitory peptides can be prepared by methods such as natural extraction, enzymatic hydrolysis, and fermentation. The production process significantly modulates structural characteristics of the polypeptides including peptide chain length, amino acid composition, and sequence, consequently determining their functional activity. To comprehensively elucidate the gastrointestinal stability and mechanisms action of ACE-inhibitory peptides, integrated experimental approaches combining both in vitro and in vivo methodologies are essential. This review systematically examines current advances in food-derived ACE-inhibitory peptides in terms of sources, production, structure, in vivo and in vitro activities, and bioavailability.
8 September 2019 in Oxidative Medicine and Cellular Longevity
The acid-depolymerised exopolysaccharides (ADES) of Termitomyces albuminosus were obtained, and the major fraction of ADES1 was isolated and purified by DEAE-52 cellulose anion-exchange column chromatography. Physicochemical characterizations showed that ADES1 was an α- and a β-configuration with the molecular weight of 2.43 kDa, containing (1→3, 4)-linked-Glcp, (1→4)-linked-D-Glcp, (1→3)-linked-D-Xylp, (1→4)-linked-D-Manp, T-Glcp, (1→6)-linked-D-Galp, and (1→4)-linked-L-Arap. The in vivo assays showed that ADES1 could reduce lipid levels in the serum and liver, decrease serum enzyme activities, and improve antioxidant enzyme activities and p-AMPKα expressions in hyperlipidemic mice, which were also confirmed by histopathological observations. These data indicated that ADES1 might be considered as a novel substance to treat and prevent hyperlipidemia and as a hepatoprotective agent.
Agricultural production in the saline–alkaline soils of the Yellow River Delta faces persistent challenges in waste recycling and soil improvement. We developed a three-stage circular agriculture model integrating “crop straw–edible mushrooms–vegetables,” enabling simultaneous waste utilization and soil remediation within one year (two mushroom and two vegetable cycles annually). Crop straw was first used to cultivate Pleurotus eryngii, achieving 80% biological efficiency and reducing substrate costs by ~36.3%. The spent mushroom substrate (SMS) was then reused for Ganoderma lucidum and vegetable cultivation, maximizing the resource efficiency. SMS application significantly improved soil properties: organic matter increased 11-fold (from 14.8 to 162.78 g/kg) and pH decreased from 8.34 to ~6.75. The available phosphorus and potassium contents increased several-fold compared to untreated soil. Metagenomic analysis showed the enrichment of beneficial decomposer bacteria (Hyphomicrobiales, Burkholderiales, and Streptomyces) and functional genes involved in glyoxylate metabolism, nitrogen cycling, and lignocellulose degradation. These changes shifted the microbial community from a stress-tolerant to a nutrient-cycling profile. The vegetable yield and quality improved markedly: cabbage and cauliflower yields increased by 34–38%, and the tomato lycopene content rose by 179%. Economically, the system generated 1,695,000–1,962,881.4 CNY per hectare annually and reduced fertilizer costs by ~450,000 CNY per hectare. This mushroom–vegetable rotation addresses ecological bottlenecks in saline–alkaline lands through lignin-driven carbon release, organic acid-mediated pH reduction, and actinomycete-dominated decomposition, offering a sustainable agricultural strategy for coastal regions.
Daldinia carpinicola is a newly identified species of wood-rotting fungi, with substantial aspects of its biology and ecological function yet to be clarified. A Nanopore third-generation sequencer was employed for de novo genome assembly to examine the genetic characteristics. The genome consisted of 35.93 Mb in 46 contigs with a scaffold N50 of 4.384 Mb. Glycoside hydrolases and activities enzymes accounted for a large proportion of the 522 identified carbohydrate-active enzymes (CAZymes), suggesting a strong wood degradation ability. Phylogenetic and comparative analysis revealed a close evolutionary relationship between D. carpinicola and D. bambusicola. D. carpinicola and Hypoxylon fragiforme exhibited significant collinear inter-species genome alignment. Based on transcriptome and metabolomic analyses, D. carpinicola showed a greater ability to utilize sucrose over sawdust as a carbon source, enhancing its growth by activating glycolysis/gluconeogenesis and the citrate cycle. However, compared with sucrose, sawdust as a carbon source activated D. carpinicola amino acid biosynthesis and the production of various secondary metabolites, including diterpenoid, indole alkaloid, folate, porphyrin, and biotin metabolism. The study establishes a theoretical basis for research and applications in biological processes, demonstrating a strategy to modulate the production of secondary metabolites by altering its carbon sources in D. carpinicola.