Assessing population genetic structure and diversity and their driving factors in Phoebe zhennan populations.

Background: Phoebe zhennan, commonly known as "golden-thread nanmu," is one of the most valuable and protected tree species in China. An accurate understanding of the population genetic structure and its environmental factors is of significance for the protection and selection of new P. zhennan varieties.

N4 ameliorates lipid metabolism and gut microbiota structure in high fat diet-fed rats.

Lowing blood lipid levels with probiotics has good application prospects. This study aimed to isolate probiotics with hypolipidemic efficacy from homemade na dish and investigate their mechanism of action. experiments were conducted to determine the cholesterol-lowering ability of five isolates, with results showing that N4 exhibited a high cholesterol-lowering rate of 50.

Identification and variation analysis of the composition and content of essential oil and fragrance compounds in wood at different tree ages.

Wood essential oil and wood products with special fragrances are high value-added forest products. Despite the availability of essential oil and volatile organic compounds (VOCs) from wood, their variation and dependence on tree age have not been examined. After essential oil extraction and wood processing, the yields and compositions of essential oils and VOCs in wood from trees of different ages (10a, 30a, and 80a) were determined.

The effects of fertility and synchronization variation on seed production in two Chinese fir clonal seed orchards.

Variations in fertility and synchronization information is fundamental to seed orchard management. Our objective was to determine clonal variation and stability in strobili production, phenology, synchronization, and seed production in two generation clonal seed orchards (CSO) of Chinese fir. The number of female and male strobili and the phenology of 42 clones in both the 2.