ABSTRACT
Catalpol is a active component in Rehmannia Root, and its pharmacological effects are extensive. In this paper its effects and chemical changes were summarized. This will offer the reference for further research work catalpol.
Subject(s)
Animals , Humans , Antineoplastic Agents, Phytogenic , Pharmacology , Drugs, Chinese Herbal , Chemistry , Pharmacology , Glucosides , Chemistry , Pharmacology , Hypoglycemic Agents , Pharmacology , Iridoid Glucosides , Iridoids , Chemistry , Pharmacology , Neuroprotective Agents , Pharmacology , Plants, Medicinal , Chemistry , Rehmannia , Chemistry , Technology, Pharmaceutical , MethodsABSTRACT
The progress in the studies on chemical constituents and pharmacological activity of the genus Pfaffia is summarized in recent 20 years. These plants contain various chemical constituents and have broad bioactivities such as sthenic, anti-tumor, analgesic and anti-inflammatory and should be further investigated.
Subject(s)
Animals , Humans , Amaranthaceae , Chemistry , Classification , Anti-Inflammatory Agents, Non-Steroidal , Pharmacology , Antineoplastic Agents, Phytogenic , Pharmacology , Hypnotics and Sedatives , Pharmacology , Molecular Structure , Plant Roots , Chemistry , Plants, Medicinal , Chemistry , Steroids , Chemistry , Triterpenes , ChemistryABSTRACT
<p><b>OBJECTIVE</b>To establish a method for the germplasm preservation of R. glutinosa.</p><p><b>METHOD</b>Plantlets of different cultivars obtained by tip culture were inoculated into test tubes with MS medium supplemented with 0.2 mg.L-1 BA and 0.02 mg.L-1 NAA, and preserved at 4-6 degrees C in dark. At the same time, different media (A. distilled water + 10 g.L-1 agar; B. 1/2 MS + 5 g.L-1 agar; C. MS + 10 g.L-1 agar; D. 1/2 MS + 0.5 BA + 0.02 NAA + 10 g.L-1 agar; E. MS + 0.5 BA + 0.02 NAA + 10 g.L-1 agar) were set to conserve plantlets of "85-5" on the same condition.</p><p><b>RESULT</b>4 months later, the death rate of "Xinggeda" was 73%, "Tucheng" 60%, "85-5" 33%, and "Beijing 1" 9%. All of the plantlets of "85-5" in different media kept alive. 10 months later, most of the preserved plantlets browned and wilted except those on medium A.</p><p><b>CONCLUSION</b>The low temperature endurance of R. glutinosa is cultivar-dependent. Medium A can preserve "85-5" for more than 10 months in vitro.</p>
Subject(s)
Agar , Culture Media , Culture Techniques , Plants, Medicinal , Rehmannia , Temperature , Tissue Preservation , MethodsABSTRACT
<p><b>OBJECTIVE</b>To evaluate the germplasm of Rehmannia glutinosa on the basis of photosynthetic pigment contents (PPC).</p><p><b>METHOD</b>20 cultivars were planted on the same condition. On Oct. 23 and Sept. 25, 3 leaves per cultivar were collected on different plants, and 80 mg mesophyll was collected among upper lateral veins and was ground in 96% alcohol, and the supernatant was subjected to measure on a spectrophotometer (Angilent 8453).</p><p><b>RESULT</b>The PPCs among cultivars were significantly different at a P < or = 0.01 level. The results of the measurements were similar. Chlolophyll a was the most abundant pigment, but varied to a great extent among different cultivars. 20 cultivars were divided into 9 homogeneous groups according to the contents of chlorophyll a by Duncan's multiple range test at P < or = 0.05. In addition, the content of chlorophyll a was closely related to leaf color. The cultivars with higher chlolophyll a had deep green leaves, and those with lower had yellow green or pale green leaves.</p><p><b>CONCLUSION</b>PPC was an inherent character and an important index for the germplasm evaluation of R. glutinosa.</p>