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当前位置: 首页 > 文章 > 氯化镧对矮抗58幼苗叶片抗旱生理特性的影响 灌溉排水学报 2014,33 (1) 107-110
Position: Home > Articles > Effects of Lanthanum Chloride on the Physiological Properties of Aikang58 Seedling Leaves under Drought Stress Journal of Irrigation and Drainage 2014,33 (1) 107-110

氯化镧对矮抗58幼苗叶片抗旱生理特性的影响

作  者：
单长卷;李淦;赵元增;夏永永
单  位：
河南科技学院
关键词：
矮抗58;渗透调节物质;抗氧化特性;氯化镧;干旱胁迫
摘  要：
采用15%PEG6000模拟干旱胁迫,研究了不同物质的量浓度的氯化镧对干旱胁迫下矮抗58幼苗叶片抗氧化酶活性、渗透调节物质和抗氧化物质等的影响。结果表明,在一定物质的量浓度范围内,外源施加氯化镧均能显著改善干旱胁迫条件下矮抗58幼苗叶片的抗氧化系统和渗透调节物质而增强其抗旱性,尤以10μmol/L和30μmol/L氯化镧更为明显。与单独干旱胁迫相比,10μmol/L LaCl3使干旱下叶片SOD、GR和DHAR活性、GSH及可溶性蛋白分别增加13.2%、212.5%、50%、23.1%和10.6%,使其膜透性和MDA分别降低53.2%和59.4%;30μmol/L LaCl3使SOD、APX和GR活性、GSH、可溶性糖和可溶性蛋白分别增加10%、20%、43.7%、46.2%、18.6%和14.2%,使膜透性和MDA分别降低47.8%和53.6%。
译  名：
Effects of Lanthanum Chloride on the Physiological Properties of Aikang58 Seedling Leaves under Drought Stress
作  者：
SHAN Chang-juan;LI Gan;ZHAO Yuan-zeng;XIA Yong-yong;Henan Institute of Science and Technology;
关键词：
Aikang58;;osmotic adjustment substance;;antioxidant properties;;lanthanum chloride;;drought stress
摘  要：
The effects of lanthanum chloride on physiological properties of Aikang58 seedling leaves were studied under drought stress induced by 15%PEG6000.The results showed that lanthanum chloride could improve the drought tolerance of Aikang58 seedling leaves through increasing the activities of antioxidant enzymes and the contents of osmotic adjustment substances in a certain concentration range,especially for10μmol/L and 30μmol/L LaCl3.Compared with drought stress alone,10μmol/L LaCl3 could increase the activities of SOD,GR and DHAR,and the contents of GSH,soluble sugar and soluble protein in leaves of Aikang58 by 13.2%,212.5%,50%,23.1%and 10.6%,respectively.10μmol/L LaCl3 could reduce the membrane permeability and MDA content in leaves by 53.2% and 59.4%,respectively.30μmol/L LaCl3 could increase the activities of SOD,APX and GR,and the contents of GSH,soluble sugar and soluble protein by 10%,20%,43.7%,46.2%,18.6%and 14.2%,respectively.30μmol/L LaCl3 could reduce the membrane permeability and MDA content in leaves by 47.8%and 53.6%,respectively.

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