Effects of phytotoxic extracts from peach root bark and benzoic acid on peach seedlings growth, photosynthesis, antioxidance and ultrastructure properties

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• 作者：Wei Zhu ; Junwei Liu ; Junli Ye ; Guohuai Li ; ^{liguohuai@mail.hzau.edu.cn}
• 关键词：AC ; activated charcoal ; BA ; benzoic acid ; CAT ; catalase ; CN&minus ; cyanide ; EERB ; ethanol extracts of root bark ; ML ; middle lamella ; MDA ; malondialdehyde ; POD ; peroxidase ; SOD ; superoxide dismutase ; SRL ; specific root length ; WERB ; water extracts of root bark
• 刊名：Scientia Horticulturae
• 出版年：2017
• 出版时间：27 January 2017
• 年：2017
• 卷：215
• 期：Complete
• 页码：49-58
• 全文大小：4402 K
• 卷排序：215

文摘

The water- or ethanol-extracts of peach root bark and benzoic acid caused retarded growth of peach seedlings. Root bark extracts and BA triggered lipid peroxidation and activity of antioxidative enzymes;. Root bark extracts and BA reduced photosynthesis and pigment (chlorophylls and carotenoids) levels;. Root bark extracts and BA changed the root ultrastructure in varying degrees;. GC–MS identified 49 chemicals in peach root bark, among which, four potent allelopathic compounds occurred in higher amounts.