CAJ | 학술논문

利用盆栽试验，以花育33号为供试品种，研究不同施镁量对花生叶片膜脂过氧化程度及抗氧化酶活性的影响。结果表明，在缺镁胁迫下，花生叶片内脯氨酸(Pro)含量升高，丙二醛(MDA)含量积累，膜脂过氧化程度加重，产生的活性氧物质诱导超氧化物歧化酶(SOD)和过氧化氢酶(CAT)的活性暂时升高；适量施镁可以降低花生叶片中的 MDA 含量，提高 SOD、过氧化物酶(POD)、CAT 的活性，有利于提高花生抵抗膜脂过氧化的能力，提高花生叶片生理活性，延缓衰老；不同施镁量对于花生叶片中 POD 的活性影响不大，镁胁迫下，出苗后70d 清除花生植株体内活性氧的关键酶是 SOD 和 CAT。
이용분재시험，이화육33호위공시품충，연구불동시미량대화생협편막지과양화정도급항양화매활성적영향。결과표명，재결미협박하，화생협편내포안산(Pro)함량승고，병이철(MDA)함량적루，막지과양화정도가중，산생적활성양물질유도초양화물기화매(SOD)화과양화경매(CAT)적활성잠시승고；괄량시미가이강저화생협편중적 MDA 함량，제고 SOD、과양화물매(POD)、CAT 적활성，유리우제고화생저항막지과양화적능력，제고화생협편생리활성，연완쇠로；불동시미량대우화생협편중 POD 적활성영향불대，미협박하，출묘후70d 청제화생식주체내활성양적관건매시 SOD 화 CAT。
A culture experiment which taking Huayu33 as test material was conducted to investi-gate different Mg application Amount on membrane lipid peroxidation and activities of protective en-zymes of peanut.The results indicated that malondialdehyde (MDA) and proline (Pro) significantly rose under the stress of Mg deficiency, the produced active oxygen leaded to a temporary increase of superoxide dismutase (SOD) and catalase (CAT) activities.The content of MDA was decreased and the activity of SOD, POD,CAT was improved with reasonable application of Mg, that could improve capacity and physiological activity of peanut leaves and retard the senescence.The activity of POD changed slightly under different Mg applications.SOD and CAT were the dominant enzymes that clean active oxygen after 70 days of emergence.