ABSTRACT
<p><b>OBJECTIVE</b>To study the reason for the deep dormancy of the aged Cuscuta chinensis seed and find the solving method.</p><p><b>METHOD</b>The separated and combined treatments were applied in the orthogonal designed experiments.</p><p><b>RESULT</b>The aged seed had well water-absorbency; the water and ethanol extracts of the seeds showed an inhibition effect on germination capacity of the seeds.</p><p><b>CONCLUSION</b>The main reason for the deep dormancy of aged C. chinensis seed is the inhibitors existed in seed. There are two methods to solve the problem. The seeds is immersed in 98% of H2SO4 for 2 min followed by 500 mg x L(-1) of GA3 treatment for 60 min, or in 100 mg x L(-1) of NaOH for 20 min followed by 500 mg x L(-1) of GA3 treatment for 120 min.</p>
Subject(s)
Cuscuta , Physiology , Germination , Gibberellins , Pharmacology , Seeds , Physiology , Sodium Hydroxide , Pharmacology , Sulfuric Acids , PharmacologyABSTRACT
Objective: The experiment was designed to study the effects of compound Konjac glucomannan on hyperlipidemia for the purpose of improving the therapeutic efficacy. Method: First, hyperlipidemia rat models were established. Then the effects of compound Konjac glucomannan and Konjac glucomannan on blood lipids levels and hepatic tissue morphous of rats were detected. Result; The compound Konjac glucomannan could decrease LDL-C and ApoB levels of serum TC significantly, while notably increase HDL-C and ApoA-1 levels. The result also shows that compound Konjac glucomannan could obviously improve the TG metabolism and decrease blood glucose concentration. The morphologic observation indicates that both Konjac glucomannan and flavonids could protect liver tissues of rats. Conclusion; Compound Konjac glucomannan could improve regulative ability of lipids metabolism and decrease serum lipids levels.
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Objective: To study the effects of Amorphophallus konjac refined powder combined with minimal flavonids on antioxidation , serum lipids and body weight in rats .Method: Wistar rats were divided into four groups fed with different diets, and then antioxidative ability of blood and liver, levels of serum lipids and body weight were detected and analysed in rats. Results: Konjac refined powder combined with Ginkgo biloba flavonids could decrease MDA content and increase activities of SOD and GSH-Px significantly, and also reduce serum TC, LDL-C, TG levels, improve HDL-C level in rats. As to antiobesity, no notable difference was found .Conclusion: Combined with flavonids, the antioxidation of Konjac food is improved significantly, and serum lipids level is decreased, but antiobesity effect is in-significant.
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Objective To simulate the solution drought stress conditions with polyethylene glycol (PEG) 6000 for study on the seed germination of Cassia occidentalis.Methods The seed of C.occidentalis was treated with 5% and 10% PEG 6000,respectively,then the germination rate,the activity of superoxide dismutase (SOD),peroxidase (POD),and content of malondialdehyde (MDA) were measured.Results Compared with the same period of the control,soaking with 5% PEG 6000 for 5 h could increase the activity of SOD and POD,decrease the content of MDA.PEG Pretreatment could decrease free radical accumulation and make cell membrane system less damaged in the course of absorbing water in seed.Conclusion Soaking with 5% PEG 6000 for 5 h could increase the seed germination rate of C.occidentalis.