نتایج جستجو برای: افوبیاشیرادنیا euphorbia cheiradenia

تعداد نتایج: 2245  

2007
Wei Jiao Zhi-hua Mao Wei-wei Dong Mei-cai Deng Run-hua Lu

THE TITLE COMPOUND [SYSTEMATIC NAME: (2S*,3S*,4R*,5R*,9S*,11S*,15R*)-5,15-diacet-oxy-3-nicotino-yloxy-14-oxolathyra-6(17),12(E)-diene], C(30)H(37)NO(7), was isolated from the seeds of Euphorbia lathyris. The tricyclic diterpenoid molecule contains an 11-membered ring, a five-membered ring exhibiting an envelope conformation and a three-membered ring. The 11-membered ring is cis-fused with the t...

Journal: :Zeitschrift fur Naturforschung. C, Journal of biosciences 2008
Jianxiao Shi Zhixuan Li Teruhiko Nitoda Minoru Izumi Hiroshi Kanzakia Naomichi Baba Kazuyoshi Kawazu Shuhei Nakajima

Under the bioassay-guided method, two diterpenes, 3-O-(2",3"-dimethylbutanoyl)-13-O-dodecanoylingenol (1) and 3-O-(2",3"-dimethylbutanoyl)-13-O-decanoylingenol (2) isolated from Euphorbia kansui, showed a pronounced antinematodal activity against the nematode Bursaphelenchus xylophilus at the same minimum effective dose (MED) of 5 microg per cotton ball and still displayed antinematodal activit...

Journal: :Zeitschrift fur Naturforschung. C, Journal of biosciences 2004
Amir Reza Jassbi Simin Zamanizadehnajari Satoshi Tahara

Acetone extract of aerial parts of Euphorbia marschalliana collected from Iran has been subjected to different chromatography techniques for fractionation and purification. The stereo-structures of the myrsinol esters 15-O-acetyl-3-O-propionyl-5-O-butanoyl-7-O-nicotinoylmyrsinol (1) and 15-O-acetyl-3,5-O-dibutanoyl-7-O-nicotinoylmyrsinol (2) have been probed using ROESY spectroscopy and modifie...

Journal: :Zeitschrift fur Naturforschung. C, Journal of biosciences 2011
Noureddine Mazoir Ahmed Benharref María Bailén Matías Reina Azucena González-Coloma Rafael A Martínez-Díaz

The in vitro activity on Leishmania infantum promastigotes and Trypanosoma cruzi epimastigotes of 25 semisynthetic terpenoid derivatives has been evaluated. These compounds were obtained through chemical modifications of the major components of Euphorbia resinifera (alpha-euphol and alpha-euphorbol) and Euphorbia officinarum (obtusifoliol and 31-norlanosterol). Leishmaniasis and Chagas' disease...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2016
Dan Luo Roberta Callari Britta Hamberger Sileshi Gizachew Wubshet Morten T Nielsen Johan Andersen-Ranberg Björn M Hallström Federico Cozzi Harald Heider Birger Lindberg Møller Dan Staerk Björn Hamberger

The seed oil of Euphorbia lathyris L. contains a series of macrocyclic diterpenoids known as Euphorbia factors. They are the current industrial source of ingenol mebutate, which is approved for the treatment of actinic keratosis, a precancerous skin condition. Here, we report an alcohol dehydrogenase-mediated cyclization step in the biosynthetic pathway of Euphorbia factors, illustrating the or...

2013
S. Yodyingyong C. Nuchsuk C. Chaichana S. Roytrakul

Protein hydrolysates prepared from a number of medicinal plants are promising sources of various bioactive peptides. In this work, proteins from dried whole plant of Euphorbia hirta Linn. were extracted and digested with pepsin for 12h. The hydrolysates of lesser than 3 KDa were fractionated by a cut-off membrane. The peptide hydrolysate was then purified by an anionexchange chromatography on D...

2011
S. Chanda

Infectious diseases, particularly skin and mucosal infections, are common in most of the tribal inhabitants due to lack of sanitation, potable water and awareness of hygienic food habits. Skin diseases like wounds, furuncles, sepsis, atopic dermatitis, cellulitis, gas gangrene, acne, candidiasis can be caused by a variety of the microbes. Plants produce a diverse range of bioactive molecules, m...

1988
V. K. Lal K. K. Panday M. L. Kapoor

Shilajit, exuding from the rocks of mountains has been proved to be basically derived from the latex of cactus like Euphorbia species. Therefore, in the present communication, an attempt has been made to provide similar information from the ayurvedic literatures.

2013
Diane L. Larson James B. Grace Paul A. Rabie Paula Andersen

Integrated pest management (IPM) for invasive plant species is being advocated by researchers and implemented by land managers, but few studies have evaluated the success of IPM programs in natural areas. We assessed the relative effects of components of an IPM program for leafy spurge (Euphorbia esula), an invasive plant, at Theodore Roosevelt National Park, North Dakota. Effects of herbicides...

Journal: :Oesterreichische Botanische Zeitschrift 1886

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید