Exogenous melatonin promotes anthocyanin accumulation and coloration in Chinese plum peels.

Melatonin (MT) is a growth regulator that influences anthocyanin synthesis during plant growth. However, the regulation mechanism of MT on the coloration of plum peels remains unclear. Here, the effects of MT on the anthocyanin accumulation and coloration in Chinese plum peels were examined after MT (100 μmol/L) or water (control) treatment.

Serotonin alleviates selenium stress and reduces selenium accumulation in seedlings.

To alleviate selenium (Se) stress, the effects of serotonin (SER, 150 μmol/L) on the growth and Se accumulation of seedlings under Se stress (1.0 mg/L) were assessed. The results indicated that SER increased the biomass and photosynthetic pigment content of seedlings under Se stress, while reducing the antioxidant enzymes activities, root Se content, and shoot Se content.

Profile of Serum Bile Acids in Elderly Type 2 Diabetic Patients with Various Obesity Types: A Cross-Sectional Study.

Objective: The distribution of body fat plays a critical role in the pathogenesis of type 2 diabetes mellitus (T2DM). However, the specific metabolic profiles and biomarkers that distinguish the different obesity phenotypes in T2DM remain to be fully elucidated. Bile acids (BAs), which are recognized as pivotal signaling molecules in the regulation of glucose and lipid metabolism, warrant further investigation to characterize their profiles across different obesity phenotypes.

Thermal Insulation Efficiency and Mechanisms of Flexible Sandwich Structure.

Thermal insulation layers between batteries are an effective way to reduce the propagation of thermal runaway in lithium-ion batteries. A flexible composite sandwich structure material has been designed for thermal insulation, featuring mica rolls (MRs) as the protective layers and a ceramic fiber felt (CFF) as the core layer. Experimental and numerical simulations demonstrate that at a hot-surface temperature of 900 °C, the cold-surface temperature of the sandwich structure with a 0.

Mechanism of induced soluble sugar accumulation and organic acid reduction in plum fruits by application of melatonin.

Melatonin (MT) can improve plant resistance and fruit quality. The mechanism by which MT affects soluble sugar and organic acids accumulation in drupe fruits is not clear. In this study, 100 µmol/L MT was sprayed on the leaves of plum trees at the second stage of rapid fruit expansion (90 and 97 d after flowering), and the effects of MT on plum fruit quality and its effects on the soluble sugar-organic acid metabolism were investigated.