摘要
以菊花(Chrysanthemum morifolium)品种‘神马’的扦插苗为试验试材,在40℃下对其进行8 h的热激锻炼,然后在50℃下分别进行0、1、1.5、2、2.5、4 h不同时间的高温胁迫。通过对其相对电导率、丙二醛(MDA)、脯氨酸和可溶性蛋白质含量及过氧化物歧化酶(POD)和超氧化物歧化酶(SOD)活性的测定,研究了热激锻炼对菊花耐热性的影响。结果表明,热激锻炼的菊花叶片相对电导率比对照减小,MDA含量也比对照减小,而可溶性蛋白质和脯氨酸含量及POD和SOD活性比对照增加,说明热激锻炼在一定程度上提高了菊花幼苗的耐热性。
To investigate the effects of heat shock on the heattolerance, the ‘Jinba’ were treated at 40℃ for 8 hours, and then the changes of electrolytic 1 cuttings of chrysanthemum eakage, content of malondialdehyde level （ MDA）, soluble protein, proline and activity of superoxide dismutase （SOD） and peroxidase （POD） were measured after high temperature stress with different times （ 1 -4 h ）. The results showed that the electrolytic leakage and the content of MDA in leaves treated with heat acclimation were lower than those of non-treated, the contents of soluble protein and proline and the activities of SOD and POD kept higher levels compared with those of controls. The results indicated that the heat tolerance of chrysanthemum was improved by heat shock treatment.
出处
《武汉植物学研究》
CSCD
北大核心
2008年第2期175-178,共4页
Journal of Wuhan Botanical Research
基金
河北农业大学留学回国人员科研启动基金:菊花抗性育种(2004-897)资助
关键词
菊花
热激锻炼
高温胁迫
耐热性
Chrysanthemum morifolium
Heat shock
High temperature stress
Heattolerance
