| 引用本文: | 董登峰, 李杨瑞, 江立庚, 梁 和, 黄京华.长效油菜素内酯TS303和二氢茉莉酸丙酯增强花生抗寒能力(英文)[J].广西植物,2008,(5):675-680.[点击复制] |
| DONG Deng-Feng, LI Yang-Rui, JIANG Li-Geng,
LIANG He, HUANG Jing-Hua.Effects of long-lasting brassinosteroid TS303 and propyl dihydrojasmonate on enhancing peanut resistance to chilling[J].Guihaia,2008,(5):675-680.[点击复制] |
|
| 摘要: |
| 长效油菜素内酯TS303和二氢茉莉酸丙酯(PDJ)浸种能增强花生对低温的忍耐能力,二者显著降低低温诱导的丙二醛含量和电解质渗漏率。低温降低超氧化物歧化酶(SOD)和过氧化氢酶(CAT)活性以及相对含水量,但增加过氧化物酶(POD)活性以及可溶性糖和脯氨酸含量。TS303和PDJ以及它们的混合物TNZ都能延缓低温伤害引起的SOD和CAT活性下降,并能通过增加可溶性糖和脯氨酸含量来提高相对含水量。TS303在延缓SOD和CAT活性降低方面效果比PDJ好,但PDJ在增加可溶性糖和脯氨酸含量方面效果比TS303强,由于TS303和PDJ作用机理不同,二者混合使用表现出加成或协同效应。 |
| 关键词: 油菜素内酯 二氢茉莉酸丙酯 花生 低温 |
| DOI： |
| 分类号:Q565.2,Q945 |
| 基金项目: |
|
| Effects of long-lasting brassinosteroid TS303 and propyl dihydrojasmonate on enhancing peanut resistance to chilling |
|
DONG Deng-Feng1,2, LI Yang-Rui1*, JIANG Li-Geng2,
LIANG He2, HUANG Jing-Hua2
|
|
1.Key Lab of Crop Genetic improvement and Biotechnology, Nanning 530007, China;2.College of Agriculture, Guangxi University, Nanning 530004, China
|
| Abstract: |
| The effects and the action mechanism of long lasting brassinosteroid(coded as TS303)and propyl dihydrojasmonate(PDJ)on peanut resistance to chilling were studied. The enhancement of chilling tolerance was indicated by the reduction of malondialdehyde and electrolyte leakage. Chilling stress decreased superoxide dismutase(SOD)and catalase(CAT)activities and relative water content while it increased the peroxidase(POD)activity and soluble saccharide and proline contents. TS303,PDJ and their mixture TNZ ameliorated the injury caused by chilling stress through preventing decreases in CAT and SOD activities and relative water content by enhancing the increases in proline and soluble saccharide contents. TS303 exhibited better effect than PDJ on preventing decreases in SOD and CAT activities,meanwhile,PDJ exhibited better effect than TS303 on enhancing the increases in soluble saccharide and proline contents,and it might be the difference in action mechanism that resulted in the additive or synergistic protective effect on cell membrane system. |
| Key words: brassinosteroid chilling peanut(Arachis hypogaea) propyl dihydrojasmonate |
