Results 61 to 70 of about 191 (111)

Correlation between vegetation and environment at different levels in an arid, mountainous region of China. [PDF]

open access: yesEcol Evol, 2017
Gao N   +9 more
europepmc   +1 more source
Some of the next articles are maybe not open access.

Phytochemical and chemotaxonomic study on Saussurea medusa Maxim. (Compositae)

Biochemical Systematics and Ecology, 2020
Abstract A phytochemical investigation of Saussurea medusa Maxim. led to the isolation of eleven compounds, including neoechinulin A (1), 8-hydroxypinoresinol (2), caruilignan D (3), 7(S)-hydroxyarctigenin (4), pinoresinol (5), arctigenin (6), arctii (7), epipinoresinol (8), loliolide (9), apigenin (10), and luteolin (11).
Nan Wu   +5 more
openaire   +1 more source

Immunosuppressive constituents from Saussurea medusa

Phytochemistry, 2002
The methanol extract of Saussurea medusa Maxim afforded two lignans: 2alpha-guaicyl-4-oxo-6alpha-catechyl-3,7-dioxabicyclo [3.3.0]octane and 1alpha-hydroxy-2alpha,4alpha-guaicyl-3,7-dioxabicyclo[3.3.0]octane; two chlorophyll derivatives: 13-epi-phaeophorbide-a and 13-epi-phaeophorbide-a methyl ester; one megastigmane derivative: 3beta-hydroxy-5alpha ...
Hongquan, Duan   +4 more
exaly   +3 more sources

Alleviation of ultraviolet‐B radiation‐induced photoaging using Saussurea medusa Maxim polysaccharide

Photochemistry and Photobiology, 2023
AbstractSaussurea medusa polysaccharide, the polysaccharide extract of Saussurea medusa Maxim, a traditional Chinese herbal medicine, is used to combat intense ultraviolet radiation, cold, and hypoxia in patients, as well as during drought. This polysaccharide has rich medicinal and ecological values.
Yan Guo   +5 more
openaire   +2 more sources

Dynamic microwave-assisted extraction of flavonoids from Saussurea medusa Maxim cultured cells

Biochemical Engineering Journal, 2006
An approach for automated, continuous and rapid extraction of flavonoids from Saussurea medusa Maxim dried cell cultures has been developed in a new-designed dynamic microwave-assisted extraction system. The main factors affecting the extraction process namely power of microwave irradiation, liquid/solid ratio, flow rate of solvent and irradiation time
Chun-Zhao Liu
exaly   +2 more sources

Chemical constituents of the whole plants of Saussurea medusa

Journal of Natural Medicines, 2009
The chemical constituents of the traditional Tibetan medicine of Saussurea medusa Maxim. (Compositae) were investigated and a new flavonoid glucoside, together with 14 known compounds, was isolated. The structure of the new compound was established as 6''-O-crotonoylhomoplantaginin by using one- and two-dimensional nuclear magnetic resonance ...
Zhuoma, Dawa   +5 more
openaire   +2 more sources

Transformation of Saussurea medusa for hairy roots and jaceosidin production

Plant Cell Reports, 2004
Axenically grown Saussurea medusa plantlets were inoculated with four Agrobacterium rhizogenes strains, and hairy root lines were established with A. rhizogenes strain R1601 in N6 medium. PCR and Southern hybridization confirmed integration of the T-DNA fragment of the Ri plasmid from A. rhizogenes into the genome of S. medusa hairy roots. In N6 medium,
Dexiu, Zhao   +3 more
openaire   +2 more sources

Molecular characterization and expression analysis of dihydroflavonol 4-reductase (DFR) gene in Saussurea medusa

Molecular Biology Reports, 2011
Dihydroflavonol 4-reductase (DFR), which catalyzes the reduction of dihydroflavonols to leucoanthocyanins, is a key enzyme in the biosynthesis of anthocyanidins, proanthocyanidins, and other flavonoids of importance in plant development and human nutrition.
Houhua Li
exaly   +3 more sources

Biologically active phenols from Saussurea medusa

Bioorganic and Medicinal Chemistry, 2003
AbstractFor Abstract see ChemInform Abstract in Full Text.
Cheng-Qi, Fan, Jian-Min, Yue
exaly   +3 more sources

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