湖北农业科学
湖北農業科學
호북농업과학
2009年
10期
2411-2413
,共3页
甘草%盐胁迫%碱胁迫%膜质过氧化%保护酶活性
甘草%鹽脅迫%堿脅迫%膜質過氧化%保護酶活性
감초%염협박%감협박%막질과양화%보호매활성
Glycyrrhiza uralensis Fisch%saline stress%alkaline stress%lipid peroxidation%activity of defense enzymes
以沙基培养的甘草幼苗为材料,研究不同浓度NaCl和Na_2CO_3胁迫对其膜质过氧化作用和保护酶活性的影响.结果表明,随盐处理浓度的升高,膜透性、MDA含量呈现上升趋势、POD和SOD两种保护酶的活性先上升后下降.在相同[Na~+]胁迫强度下,碱胁迫下的胁变反应均比盐胁迫强烈.
以沙基培養的甘草幼苗為材料,研究不同濃度NaCl和Na_2CO_3脅迫對其膜質過氧化作用和保護酶活性的影響.結果錶明,隨鹽處理濃度的升高,膜透性、MDA含量呈現上升趨勢、POD和SOD兩種保護酶的活性先上升後下降.在相同[Na~+]脅迫彊度下,堿脅迫下的脅變反應均比鹽脅迫彊烈.
이사기배양적감초유묘위재료,연구불동농도NaCl화Na_2CO_3협박대기막질과양화작용화보호매활성적영향.결과표명,수염처리농도적승고,막투성、MDA함량정현상승추세、POD화SOD량충보호매적활성선상승후하강.재상동[Na~+]협박강도하,감협박하적협변반응균비염협박강렬.
Lipid peroxidation and activity of defense enzymes in sand-cultured seedlings of Glycyrrhiza uralensis Fisch were studied under stress with different concentration of NaCl and Na_2CO_3. The results showed that with the increase of salt contents ,the membrane permeability and the content of MDA increase ,the activity of two kinds of defensive enzyme POD and SOD increased at first and then declined later. Under the same concentration of Na~+,the reaction of alkaline stress was more seriously than that of the saline stress.
