| 甘蔗活性氧代谢对水分胁迫的响应 |
| |
| 引用本文： | 罗俊,林彦铨,张木清.甘蔗活性氧代谢对水分胁迫的响应[J].福建农林大学学报(自然科学版),2000,29(4):405-410. |
| |
| 作者姓名： | 罗俊 林彦铨 张木清 |
| |
| 作者单位： | 福建农林大学农业部甘蔗遗传育种重点开放实验室!福建福州350002 |
| |
| 基金项目： | 国家自然科学基金资助项目! (3970 0 0 93) |
| |
| 摘 要： | 中度水分胁迫下蔗叶过氧化物歧化酶 ( SOD)活性、过氧化氢酶 ( CAT)活性、类胡萝卜素 ( car)含量均明显下降 ,膜脂过氧化产物丙二醛 ( MDA)含量随水分胁迫强度加剧而迅速提高 ;同时水分胁迫加速细胞膜系统的损伤 ,质膜相对透性 ( PMP)加大 .耐旱品种如 FA81- 74 5、GT89- 5、YZ89- 151、YT86- 368的 MDA含量和PMP增幅较小 ,而 FI83- 13、MT70 - 611的 MDA含量和 PMP增幅较大 ,耐旱性较弱 .
|
| 关 键 词： | 活性氧代谢 水分胁迫 甘蔗 抗旱性评价 |
Effects of water stress on active oxygen metabolism in sugarcane |
| |
| LUO Jun,LIN Yan quan,ZHANG Mu qing.Effects of water stress on active oxygen metabolism in sugarcane[J].Journal of Fujian Agricultural and Forestry University,2000,29(4):405-410. |
| |
| Authors: | LUO Jun LIN Yan quan ZHANG Mu qing |
| |
| Abstract: | Results of the weakness of active oxygen scavengering involved the decrease of the catalase (CAT) activity, the decline of super oxide dismutase(SOD) activity and the carotenoid (car) content, the active oxygen accumulated to increase the lipid peroxidation of the plasma membrane and to promote the accumulation of malonaldehyde (MDA) under water stress. With the increase of water stress duration, the MDA content and plasma membrane permeability(PMP) were raised in the different degree depending on the tested genotypes and water stress duration. The less increment of the MDA content and PMP in the leaves exposed to water stress showed the strong drought tolerance in FA81 745,GT89 5,YZ89 151,YT86 368.The situations were turned out to be opposite in the other tested genotypes, e.g. FI83 13 and MT70 611. |
| |
| Keywords: | active oxygen metabolism water stress sugarcane assessment of drought tolerance |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
