Results 111 to 120 of about 507 (153)

Non-taxane compounds from the bark of Taxus yunnanensis

Journal of Asian Natural Products Research, 2002
From the bark of Taxus yunnanensis, 15 non-taxane compounds were isolated. Through spectroscopic methods such as ID and 2D NMR and MS experiments, one of them was determined as a new abietane-type diterpenoid named taxayunnin (1). The other 14 known compounds were identified as taxamairin C (2), taxamairin A (3), 3beta-hydroxy-sandaracopimaric acid (4),
Sheng-Hong Li, Han-Dong Sun, Xue-Mei Niu   +2 more
exaly   +3 more sources

Taxuyunnanines S-V, New Taxoids from Taxus yunnanensis

Planta Medica, 2002
Four new 11(15-->1)-abeotaxoids with an opened oxetane ring system, taxuyunnanines S, T, U and V (1 - 4) were isolated from the bark of Taxus yunnanensis. Taxuyunnanine S (1), is the most hydroxylated abeotaxoid discovered to date from Taxus species. The structures were determined by spectroscopic means including 1D and 2D NMR experiments.
Sheng-Hong Li, Han-Dong Sun, Harry H S Fong   +2 more
exaly   +3 more sources

Development of the male reproductive structures in Taxus yunnanensis

Plant Systematics and Evolution, 2008
Taxus yunnanensis Cheng et L. K. Fu is a rare species endemic to Southeast Asia. The development of the male reproductive structures with emphasis on microsporogenesis and microgametogenesis are described for the first time. Our results showed that T.yunnanensis exhibits several features that are very different from other species of Taxus, such as ...
Danilo Fernando, Chen Xiao-Ming
exaly   +2 more sources

Isolation and characterization of microsatellite markers for the endangered Taxus yunnanensis

Conservation Genetics, 2008
Eleven polymorphic microsatellite loci were characterized for the endangered conifer Taxus yunnanensis. Eight loci were isolated through SSR-anchored PCR, one locus was developed by cross-species amplification tests, while the last two loci were obtained from cross-species microsatellite sequences available in GenBank.
Ya-Ping Zhang, Zhang Ya-Ping
exaly   +2 more sources

Cytochrome P450 3A4 Inhibitory Constituents of the Wood ofTaxus yunnanensis [PDF]

Journal of Natural Products, 2010
From the aqueous extract of the wood of Taxus yunnanensis, which showed cytochrome P450 3A4 (CYP3A4) inhibition, a new isoflavan [(3S,4R)-4'-hydroxy-6,3'-dimethoxyisoflavan-4-ol (1)], a new degraded lignan [2,3-bis(hydroxymethyl)-7-hydroxy-6-methoxy-1-tetralone (2)], and a new lignan [(7R)-7-hydroxytaxiresinol (3)] were isolated, together with nine ...
Yasuhiro, Tezuka, Kouhei, Morikawa, Feng, Li, Lidyawati, Auw, Suresh, Awale, Takahiro, Nobukawa, Shigetoshi, Kadota   +6 more
openaire   +3 more sources

ChemInform Abstract: Three New Taxanes from the Roots of Taxus yunnanensis. [PDF]

ChemInform, 1994
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
H. ZHANG, Y. TAKEDA, Y. MINAMI, K. YOSHIDA, T. MATSUMOTO, W. XIANG, O. MU, H. SUN   +7 more
openaire   +2 more sources

ChemInform Abstract: Four New Taxanes from the Roots of Taxus yunnanensis. [PDF]

ChemInform, 1996
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
H. ZHANG, H. SUN, Y. TAKEDA
openaire   +2 more sources

Transcriptome profiling reveals specific patterns of paclitaxel synthesis in a new Taxus yunnanensis cultivar [PDF]

Plant Physiology and Biochemistry, 2018
The difference in contents of paclitaxel and 10-deacetylbaccatin III (10-DABIII) in needles between wildtype (WT) and a new cultivar (Zhongdayihao, ZD1) of Taxus yunnanensis was examined. Transcriptome profiling was conducted for different tissues of the ZD1 and WT to illustrate the regulation mechanism of paclitaxel biosynthesis.
Chun-Tao, He, Zhi-Liang, Li, Qian, Zhou, Chuang, Shen, Ying-Ying, Huang, Samavia, Mubeen, Jun-Zhi, Yang, Jian-Gang, Yuan, Zhong-Yi, Yang   +8 more
openaire   +3 more sources

DPPH Radical Scavenging and Nitric Oxide Inhibitory Activities of the Constituents from the Wood ofTaxus yunnanensis [PDF]

Planta Medica, 2003
The H2O, H2O/MeOH (1 : 1) and MeOH extracts of the wood of Taxus yunnanensis possessed significant DPPH radical scavenging and nitric oxide (NO) inhibitory activities. Chemical investigation of these extracts led us to isolation of nineteen compounds, i.
Trung Nhan Nguyen, Suresh Awale, Arjun H Banskota   +2 more
exaly   +2 more sources

Comparative Transcriptome Analysis Revealed the Tissue-Specific Accumulations of Taxanes among Three Experimental Lines of Taxus yunnanensis [PDF]

Journal of Agricultural and Food Chemistry, 2018
Taxus yunnanensis (Yew) is known for natural anticancer metabolite paclitaxel (Taxol) and its biosynthesis pathway in yew species still needs to be completely elucidated. In the current study, productions of paclitaxel and 10-DAB III from three different
Zhongyi Yang, Chuntao He
exaly   +2 more sources