不同浓度Cd对蛇泡草生理生化特性的影响

【目的】研究Cd污染对蛇泡草生理生化特性指标的影响,为重金属对中草药的毒害作用研究提供参考。【方法】采用盆栽模拟试验,待蛇泡草幼苗待生长稳定后,以50 m L/d的量浇灌不同浓度（11、22、45、90和134 mg/kg）的Cd2＋溶液,记录蛇泡草5、30和45 d的生长情况,同时测定其的可溶性总糖含量、总黄酮含量、及抗氧化酶活性。【结果】随Cd溶液浓度的增加,蛇泡草体内Cd含量不断增大,同时蛇泡草叶片、茎部和根部的可溶性总糖、总黄酮、及抗氧化酶活性均呈现出不断降低的趋势。【结论】Cd较易在蛇泡草体内积累,并会破坏植物的新成代谢和正常生长,导致各项生理生化特性指标下降,表现出明显的毒害作用。...

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Published in西南农业学报 Vol. 30; no. 6; pp. 1299 - 1303
Main Author 蒋翠文 李娟娟 蔡卓
Format Journal Article
LanguageChinese
Published 广西农业科学院农产品质量安全与检测技术研究所,广西南宁,530007%广西大学化学化工学院,广西南宁,530004 2017
Subjects
生理生化特性
蛇泡草
重金属
镉
Cadmium
Duchesnea indica (Andr.) Focke
蛇泡草
镉
生理生化特性
重金属
Heavy metal
Physiological and biochemical characteristics
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ISSN1001-4829
DOI10.16213/j.cnki.scjas.2017.6.010

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Summary:【目的】研究Cd污染对蛇泡草生理生化特性指标的影响,为重金属对中草药的毒害作用研究提供参考。【方法】采用盆栽模拟试验,待蛇泡草幼苗待生长稳定后,以50 m L/d的量浇灌不同浓度（11、22、45、90和134 mg/kg）的Cd2＋溶液,记录蛇泡草5、30和45 d的生长情况,同时测定其的可溶性总糖含量、总黄酮含量、及抗氧化酶活性。【结果】随Cd溶液浓度的增加,蛇泡草体内Cd含量不断增大,同时蛇泡草叶片、茎部和根部的可溶性总糖、总黄酮、及抗氧化酶活性均呈现出不断降低的趋势。【结论】Cd较易在蛇泡草体内积累,并会破坏植物的新成代谢和正常生长,导致各项生理生化特性指标下降,表现出明显的毒害作用。
Bibliography:51-1213/S
[ Objective ] To provide scientific reference for the investigation of heavy metal toxicity on Chinese herbal medicine, the effects of Cd pollution on the variation of plant physiological and biochemical characteristics of Duchesnea indica （ Andr. ） Focke were studied. [ Meth- od ] The simulated experiments of Cd contamination were carried out in pots which was used for planting Duchesnea indica （ Andr. ） Foeke. After a certain period of growth, the stable seedlings were irrigated by Cd2 ＋ solution of different concentration （ 11,22, 45,90 and 134 rag/ kg） with 50 mL/d, and their growth status of 5,30,45 days were recorded. Meanwhile, the contents of total soluble sugar, total flavonoids, and antioxidant enzyme activity of the plant were determined. [ Result ] It showed that with increasing Cd pollution in the soil, Cd content in Duchesnea indica （ Andr. ） Focke was kept rising. In the meantime, the total soluble sugar, total flavonoids and the activity of antioxidant enzymes in leaf, stem and root s
ISSN:1001-4829
DOI:10.16213/j.cnki.scjas.2017.6.010