种植三七的土壤中柠檬酸含量对土壤铅(Pb)形态和植株抗性的影响  

Effect of Citric Acid Content in Soil Planted with Panax Notoginsengon Soil Lead (Pb) Morphology and Plant Resistance

作　　者：赵媛 王旭 范梦林 唐振亚 樊芳玲 黄益宗 ZHAO Yuan;WANG Xu;FAN Menglin;TANG Zhenya;FAN Fangling;HUANG Yizong(School of Energy and Environment Science,Yunnan Normal University,Kunming 650500,China;Faculty of Modern Agricultural Engineering,Kunming University of Science and Technology,Kunming 650500,China;Yunnan Key Laboratory of Rural Energy Engineering,Kunming 650500,China)

机构地区：[1]云南师范大学能源与环境科学学院,云南昆明650500 [2]昆明理工大学现代农业工程学院,云南昆明650500 [3]云南省农村能源工程重点实验室,云南昆明650500

出　　处：《云南师范大学学报（自然科学版）》2024年第5期36-42,共7页Journal of Yunnan Normal University:Natural Sciences Edition

基　　金：国家自然科学基金资助项目(42107256);云南省基础研究计划资助项目(202201AT070036,202201AU070147,202301AT070460);云南师范大学高层次引进人才资助项目(ZX22020102).

摘　　要：以种植三七1年(T1)、2年(T2)、3年(T3)和8年(T4)的土壤为研究对象,探讨种植三七的土壤中柠檬酸含量对土壤Pb形态和三七植株抗性的影响.随着三七种植年限增加,土壤柠檬酸含量增高,土壤中酸提取态Pb含量随柠檬酸含量升高而显著上升,还原态Pb含量随柠檬酸浓度的增加而下降,CK氧化态Pb和残渣态Pb含量显著高于T4和T3处理.T4处理三七根、茎和叶中Pb含量均最高,其根、茎和叶富集系数均显著高于其他处理.三七根系、茎、叶SOD、POD和CAT活性随着柠檬酸浓度的升高而显著上升.Soils planted with Panax notoginseng for 1(T1),2(T2),3(T3)and 8(T4)years were used to investigate the effects of citric acid content in soils planted with Panax notoginseng on soil Pb morphology and Panax notoginseng plant resistance.As the number of years of Panax notoginseng cultivation increased,the citric acid content of soil increased,the acid-extractable Pb content of soil increased significantly with the increase of citric acid content,the reduced Pb content decreased with the increase of citric acid concentration,and the oxidized and residual Pb contents of CK were significantly higher than those of T4 and T3 treatments.T4 treatment of Panax notoginseng had the highest Pb content in roots,stems and leaves,and its enrichment coefficients of roots,stems and leaves were significantly higher than those of other treatments.The activities of SOD,POD and CAT in Panax notoginseng roots,stems and leaves increased significantly with the increase of citric acid concentration.

关 键 词：三七 种植年限 柠檬酸含量 铅形态 植株抗性 

分 类 号：Q94[生物学—植物学]