氨基酸螯合镧(La(Ⅲ)-AA)对模拟酸雨胁迫下三种作物生理指标的影响  

Effects of La(Ⅲ)-AA on Physiological Indicators of three crops under artificial acid rain stress

作　　者：谢恩耀 郑玉童 冯梦玲 陆梅 钱加越 王霞[1] 吴炜 张慧引 周淘淘 朱海莉 陈佳佳 金琎[1] XIE Enyao;ZHENG Yutong;FENG Mengling;LU Mei;QIAN Jiayue;WANG Xia;WU Wei;ZHANG Huiyin;ZHOU Taotao;ZHU Haili;CHEN Jiajia;JIN Jin(School of Chemistry and Life Sciences,Suzhou University of Science and Technology,Suzhou,215009,China;GenChim Testing Technology(Shanghai)Co.,LTD,Shanghai,201403,China)

机构地区：[1]苏州科技大学化学与生命科学学院,苏州215009 [2]鉴甄检测技术(上海)有限公司,上海201403

出　　处：《环境化学》2023年第9期3199-3209,共11页Environmental Chemistry

基　　金：苏州市科技计划项目(SNG201905);江苏省高校青蓝工程(201806)资助.

摘　　要：酸雨对农业生态系统中作物的影响,攸关粮食安全,抗酸(雨)减灾研究迫在眉睫.本文采用模拟酸雨污染盆栽实验方法,研究一种新型氨基酸螯合镧对酸雨胁迫下玉米、水稻、小麦等8项生理指标的影响.结果表明,与对照组相比预施氨基酸螯合镧能有效降低酸雨对3种作物叶片质膜透性(45.95%—54.22%)、超氧阴离子自由基产生速率(28.44%—42.31%)、丙二醛含量(31.03%—38.71%)、脯氨酸(36.23%—47.17%)含量及过氧化物酶活性(48.3%—57.92%)的影响,提高过氧化氢酶活性(29.43%—78.61%)、叶绿素含量(7.89%—18.76%)和氮代谢强度(21.37%—60.63%).由此可见,氨基酸螯合镧对酸雨胁迫下,作物的过氧化损伤具有一定防护效应,预喷氨基酸螯合镧可在一定程度上减轻酸雨污染对作物的伤害.The impact of acid rain on crops is critical to food security,and reducing acid rain damage to crops is a top priority.In this paper,the effect of a novel amino acid chelated lanthanum La(Ⅲ)-AA on 8 physiological indices of three crops,Zea mays L.,Oryza sativa L.and Triticum aestivum L.were studied under simulated acid rain pollution.The results showed that pre-application of La(Ⅲ)-AA could effectively reduce the plasma membrane permeability(45.95%—54.22%),ROS production rate(28.44%—42.31%),malondialdehyde content(31.03%-38.71%),proline content(36.23%—47.17%)and peroxidase activity(48.3%—57.92%).Meanwhile,catalase activity(29.43%—78.61%),chlorophyll content(7.89%—18.76%)and nitrogen metabolism intensity(21.37%—60.63%)were increased.In conclusion,La(Ⅲ)-AA exhibits protective effect against the peroxidative stress caused by acid rain,and pre-spraying La(Ⅲ)-AA can reduce the damage of acid rain pollution to crops.

关 键 词：氨基酸螯合镧 模拟酸雨 农作物 生理指标 

分 类 号：X517[环境科学与工程—环境工程] X173[农业科学—作物栽培与耕作技术] S311[农业科学—农艺学]