烯草酮和镉对芹菜生理生化过程的影响及其毒性机理

doi:10.14088/j.cnki.issn0439-8114.2018.16.009

摘要/Abstract

摘要： 通过盆栽试验,评价烯草酮和镉单一污染及复合污染对芹菜生理生化过程的影响,探究复合污染的危害及两者之间是否具有相互作用。对不同处理下芹菜中的SOD、POD、CAT、GSH等酶活性,以及丙二醛、脯氨酸、总酚和镉含量的变化进行研究。结果表明,复合污染相比于单一因素处理,对芹菜有更大的毒害作用,氧化酶系统在受到伤害时,芹菜同时表现出GSH、总酚和脯氨酸含量升高,减轻植株受到的氧化损伤,致使丙二醛的含量有一定的下降。烯草酮和镉复合污染,两者之间存在拮抗作用,烯草酮的施加对于芹菜中镉的富集有一定的抑制作用,且在镉浓度为0.7 mg/kg时,抑制效果明显。

关键词: 烯草酮, 镉, 芹菜, 酶活性, 复合污染

Abstract: Through pot experiment, an evaluation of the single and combined stress effects of the cadmium and clethodim on the physiological and biochemical process of celery were made. Meanwhile the study explored the interaction between the two combined pollution. The experiment determines the enzyme activities of SOD, POD, CAT, GSH and the content of MDA, proline, total phenols and cadmium content. The results showed that the combined pollution of clethodim and cadmium had more damage to celery, compared to the single factor treatment. The enzymes hurted was one of toxic mechanism of clethodim and cadmium, celery showed the increase of total phenols, proline and GSH, which could alleviate the oxidative damage and decrease the content of MDA. There was a certain antagonism between clethodim and cadmium, Clethodim had certain inhibitory effect on the enrichment of cadmium in celery, when the concentration of cadmium was 0.7 mg/kg, the inhibitory effect was obvious.

Key words: clethodim, cadmium, celery, enzymatic activity, combined pollution

中图分类号:

S636.3
X173

黄思达, 郭留阳, 武延利, 黄颖, 绳慧珊, 崔新仪. 烯草酮和镉对芹菜生理生化过程的影响及其毒性机理[J]. 湖北农业科学, 2018, 57(16): 37-41.

HUANG Si-da, GUO Liu-yang, WU Yan-li, HUANG Ying, SHENG Hui-shan, CUI Xin-yi. The Physiological and Biochemical Processes Effect and the Toxicity Mechanism of Celery under Cadmium and Clethodim Stresse[J]. HUBEI AGRICULTURAL SCIENCES, 2018, 57(16): 37-41.

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