摘要
对不同干椒品种(系)进行15、24、33和42℃温度处理,以适温24℃为对照,结果表明:绿株干椒四川朝天椒及99012的细胞膜伤害率、丙二醛(MDA)和脯氨酸(Pm)含量及过氧化氢酶(CAT)活性都有不同程度的增加,各指标增幅与品种对低、高温的耐性有关,前两者呈负相关,后两者呈正相关;而过氧化物酶(POD)活性与抗逆温性强弱不相关。紫株干椒永宁紫椒和紫茸干椒99007,除MDA含量在15、33、42℃时比24℃下有减少外,其余指标变化规律与绿株干椒相似,但变幅显著增大。具有紫色、茸毛性状品种(系)的抗逆温性在生理上比绿株品种(系)强些。
The four chili varieties were treated with 15, 24, 33 and 42℃, using 24℃ as a check. The results showed that the injured rate of cell membrane, the contents of malondialdehyde (MDA), proline, and catalase (CAT) activity of green plant cvs. Sichuanchaotian and 99012 increased in varying degrees. The injured rate and MDA were negatively related to tolerance of varieties to low and high temperature, while Pro and CAT were positively related to it. The activity of peroxidase (POD) had no correlation with the resistance to temperature stress. Purple plant cv. Yongningzijiao and purple-downy variety 99007 displayed similar change to the green ones on studied indexes except MDA, which decreased at temperature of 15, 33,42℃, but the change degrees increased significantly. The varieties with purple or downy characteristics were superior to the one with green in resistance to temperature stress.
出处
《植物生理学通讯》
CSCD
北大核心
2004年第6期693-695,共3页
Plant Physiology Communications
基金
安徽省教育厅自然科学基金(2002jk074)。
