摘要
通过水培方法,研究了4种不同葫芦科植物对酞酸酯的胁迫反应与吸收作用.结果表明,黄瓜、南瓜、丝瓜在一系列PAEs浓度胁迫下其常见生理指标变化差异不大,在低浓度时对某些指标还具有促进作用,在一定范围内对PAEs具有较好的耐受能力.对DBP的吸收作用,黄瓜和南瓜根部含量远大于冬瓜和丝瓜(P<0.05);除冬瓜外,其余三种植物的地上部DBP含量均大于根部的含量(P<0.05).对DEHP的吸收作用,4种植物的根部含量均远高于各自地上部的;冬瓜和黄瓜根部含量明显大于南瓜和丝瓜(P<0.05);南瓜地上部的含量显著大于其余三种植物地上部的含量(P<0.05).4种葫芦科植物对DBP和DEHP的吸收能力强于一些常见的叶菜类植物.黄瓜和南瓜比其余两种葫芦科植物对DBP和DEHP均有更强的吸收能力,是PAEs修复的潜力植物,较适于在酞酸酯污染土壤中种植.
Changes in the growth and physiological characteristics of 4 different Cucurbitaceae plants grown in phthalate esters(PAEs) contaminated water was studied under laboratory simulation testing.The results showed that physiological indexes of Cucumis sativus,Cucurbita moschata and Luffa cylindrical changed little under PAEs stress,and PAEs even enhanced some physiological indexes at low concentration.C.sativus,C.moschata and L.cylindrical had good tolerance to PAEs in certain range.DBP contents in roots were higher in C.sativus and C.moschata than Benincasa hispida and L.cylindrical(P<0.05).Apart from B.hispida,DBP contents were higher in aboveground parts than root for 3 other kinds of Cucurbitaceae(P < 0.05).DEHP contents were higher in aboveground parts than roots for all 4 plants(P<0.05).DEHP contents were higher in the roots of B.hispida and C.sativus than C.moschata and L.cylindrical(P<0.05),while DEHP content was highest in the aboveground parts of C.moschata(P<0.05).The absorbability of DBP and DEHP for all 4 Cucurbitaceae plants were stronger than common leafy plants.Although,absorbabilities of C.sativus and C.moschata were stronger than L.cylindrical and B.hispida,so they were potential to be applied to remediate PAEs contaminated soil.
出处
《福建农林大学学报（自然科学版）》
CSCD
北大核心
2017年第6期618-622,共5页
Journal of Fujian Agriculture and Forestry University:Natural Science Edition
基金
江苏省自然科学基金项目(BK20130421)
国家环境保护公益性行业科研专项(201409055)
关键词
酞酸酯
植物修复
葫芦科
胁迫反应
phthalate acid ester
plant remediation
Cucurbitaceae
stress response
