Two new seco-abietane type diterpenoids from the leaves of .

Two new seco-abietane type diterpenoids, named as isodonserra acid A and B (), along with six known compounds, angustanoic acid A (), epipalustric acid (), raserrane (), 7-methoxy coumarin (), umbelliferone (), and (-)-loliolide (), were obtained from the leaves of . The new structures of compounds and were elucidated by analysing their 1D NMR, 2D NMR and HR-ESI-MS spectra. Compounds showed moderate hepatoprotective activity against APAP-induced HepG2 cell injury with a cell survival rate from 50.

Responses of Physiology, Photosynthesis, and Related Genes to Saline Stress in subsp. (W. P. Fang) Q. Y. Xiang.

subsp. (W. P.

[Synergistic effects of organic fertilizer coupled with phosphate-solubilizing and nitrogen-fixing bacteria on nutrient characteristics of yellow-brown soil under carbon deficiency].

Understanding the dynamics of phosphate-solubilizing and N-fixing bacteria on soil nutrient and related enzyme activity under different organic fertilizer proportions (OFP) could provide references for screening appropriate inoculant type, OFP, and fertilization period. Here, we set four OFP levels (mass ratio: 0%, 4%, 8%, 12%) and inoculated two phosphate-solubilizing bacteria (, ) and two N-fixing bacteria (, ) in the subtropical yellow-brown barren soil. After a 60-day soil incubation under controlled conditions (28 ℃, darkness), we examined the impacts of single/mixed applications of beneficial bacteria on soil available nutrients and related enzyme activities at different OFP levels and different sampling times (3rd, 8th, 16th, 30th, 45th, 60th day).