A new coumarin was obtained from the stems and roots of Wikstroemia indica （L.） C. A. Mey. Its structure was elucidated as methyl 3-（2-hydroxy-4-（7-hydroxy-6-methoxy-2-oxo-2H-chromen-3-yloxy） phenyl） propanoate ...A new coumarin was obtained from the stems and roots of Wikstroemia indica （L.） C. A. Mey. Its structure was elucidated as methyl 3-（2-hydroxy-4-（7-hydroxy-6-methoxy-2-oxo-2H-chromen-3-yloxy） phenyl） propanoate by spectroscopic methods.展开更多
[ Objective ] The aim was to select appropriate sterilization methods and explants for tissue culture of Haloxylon ammodendron （ C. A. Mey. ）. [Method] H. ammodendron （C. A. Mey. ） seeds were used as experimental ...[ Objective ] The aim was to select appropriate sterilization methods and explants for tissue culture of Haloxylon ammodendron （ C. A. Mey. ）. [Method] H. ammodendron （C. A. Mey. ） seeds were used as experimental materials to investigate the sterilization results of different sterilization treatments and the effect of different seed sizes on the survival rate of aseptic seedlings. [ Result] Sterilization of H. ammodendron （ C.A. Mey. ） seeds achieved the best result by using 75% alcohol for 15 min and 0.1% mercuric chloride for 8 min. Seeds with diameter φ 〉 2.0 mm were used as explants and achieved relatively high surviv- al rate of aseptic seedlings, which reached above 65%. [ Conclusion] This study established a surface sterilization method for tissue culture of H. ammodendron （ C. A. Mey. ） Bunge seeds.展开更多
Introduction The plants of genus Cistanche G. Beck, which belong to Orobanchaceae family, include about twenty species, and there are four species and one variety are distributed in the northwest part of China. The d...Introduction The plants of genus Cistanche G. Beck, which belong to Orobanchaceae family, include about twenty species, and there are four species and one variety are distributed in the northwest part of China. The dried fleshy stem of Cistanche genus plant known as ＇Roucongrong＇ in Chinese traditional medicine, has long been used for kidney deficiency, female infertility, morbid leucorrhea, and neurasthenia. Studies on active components and pharmacological activities show that it possesses significant activities in enhancing potency, anti-fatigue, immuno-modulability, etc, and phenylethanoid glycosides are the major active components. Due to excessive exploitation, its natural resources are facing with exhaustion. In order to improve this situation, the plant has been cultivated on a large scale in the northwest part of China. Up to now, the chemical investigations of the cultivated Cistartcbe salsa have not been undertaken. In this paper we report seven phenylethanoid glycosides from the cultivated Cistanche salsa： echinacoside （1）, cistanoside A （2）, acteoside （3）, isoacteoside （4）, 2＇-acetylacteoside （5）, tubuloside B （6）, and eutigoside A （7）. Among them, compound 7 isolated fronl family Orobanchaceae was reported previously, and compounds 1, 2, 3, 4, 5 and 6 from the cultivated Cistanche salsa are reported for the first time.展开更多
Following six compounds have been at first time isolated from the stems and leaves of Ginseng Panax ginseng C.A.Meyer by TLC technique and identified by IR, LC MS and NMR as: (Ⅰ)hexadecanoic acid, (Ⅱ)1,7,7 trimethyl...Following six compounds have been at first time isolated from the stems and leaves of Ginseng Panax ginseng C.A.Meyer by TLC technique and identified by IR, LC MS and NMR as: (Ⅰ)hexadecanoic acid, (Ⅱ)1,7,7 trimethyl bicyclo 2,3 hexandione, (Ⅲ)(2 E,4E ) decadienal, (Ⅳ) Δ 4(8) ρ menthene 3 one, (Ⅴ)2,6 di tert butyl 4 methylphenol and (Ⅵ)2 methylmethahexadecanoate.展开更多
文摘A new coumarin was obtained from the stems and roots of Wikstroemia indica （L.） C. A. Mey. Its structure was elucidated as methyl 3-（2-hydroxy-4-（7-hydroxy-6-methoxy-2-oxo-2H-chromen-3-yloxy） phenyl） propanoate by spectroscopic methods.
基金Supported by Open Project of Key Laboratory of Tarim Animal Husbandry Science and Technology from Xinjiang Production & Construction Crops(HS20901)
文摘[ Objective ] The aim was to select appropriate sterilization methods and explants for tissue culture of Haloxylon ammodendron （ C. A. Mey. ）. [Method] H. ammodendron （C. A. Mey. ） seeds were used as experimental materials to investigate the sterilization results of different sterilization treatments and the effect of different seed sizes on the survival rate of aseptic seedlings. [ Result] Sterilization of H. ammodendron （ C.A. Mey. ） seeds achieved the best result by using 75% alcohol for 15 min and 0.1% mercuric chloride for 8 min. Seeds with diameter φ 〉 2.0 mm were used as explants and achieved relatively high surviv- al rate of aseptic seedlings, which reached above 65%. [ Conclusion] This study established a surface sterilization method for tissue culture of H. ammodendron （ C. A. Mey. ） Bunge seeds.
文摘Introduction The plants of genus Cistanche G. Beck, which belong to Orobanchaceae family, include about twenty species, and there are four species and one variety are distributed in the northwest part of China. The dried fleshy stem of Cistanche genus plant known as ＇Roucongrong＇ in Chinese traditional medicine, has long been used for kidney deficiency, female infertility, morbid leucorrhea, and neurasthenia. Studies on active components and pharmacological activities show that it possesses significant activities in enhancing potency, anti-fatigue, immuno-modulability, etc, and phenylethanoid glycosides are the major active components. Due to excessive exploitation, its natural resources are facing with exhaustion. In order to improve this situation, the plant has been cultivated on a large scale in the northwest part of China. Up to now, the chemical investigations of the cultivated Cistartcbe salsa have not been undertaken. In this paper we report seven phenylethanoid glycosides from the cultivated Cistanche salsa： echinacoside （1）, cistanoside A （2）, acteoside （3）, isoacteoside （4）, 2＇-acetylacteoside （5）, tubuloside B （6）, and eutigoside A （7）. Among them, compound 7 isolated fronl family Orobanchaceae was reported previously, and compounds 1, 2, 3, 4, 5 and 6 from the cultivated Cistanche salsa are reported for the first time.
文摘Following six compounds have been at first time isolated from the stems and leaves of Ginseng Panax ginseng C.A.Meyer by TLC technique and identified by IR, LC MS and NMR as: (Ⅰ)hexadecanoic acid, (Ⅱ)1,7,7 trimethyl bicyclo 2,3 hexandione, (Ⅲ)(2 E,4E ) decadienal, (Ⅳ) Δ 4(8) ρ menthene 3 one, (Ⅴ)2,6 di tert butyl 4 methylphenol and (Ⅵ)2 methylmethahexadecanoate.
