| 番茄抗感青枯病品种的生理生化差异 |
| |
| 引用本文： | 寿森炎,冯壮志,殷一平,谭芸,苗立祥.番茄抗感青枯病品种的生理生化差异[J].浙江大学学报(农业与生命科学版),2005,31(5):550-554. |
| |
| 作者姓名： | 寿森炎 冯壮志 殷一平 谭芸 苗立祥 |
| |
| 作者单位： | 浙江大学园艺系蔬菜研究所生长发育与生物技术农业部重点实验室,浙江杭州310029 |
| |
| 基金项目： | 国家高技术研究发展计划(863计划) |
| |
| 摘 要： | 为了研究番茄抗青枯病育种的生理基础,对差异很大的两个品种接种青枯病菌(Ralstonia solanacearum),分析其品种间与防卫系统相关的动态变化.结果表明,受青枯菌侵染后,抗病品种T51A的苯丙氨酸解氨酶(PAL)活性高于对照,而感病品种T9230的却与对照一致;抗病品种T51A的超氧化物歧化酶(SOD)活性高于对照,其峰值比对照高16.12%,而感病品种T9230的却低于对照,其峰值低于对照25.14%;抗病品种T51A与感病品种T9230的多酚氧化酶(PPO)、过氧化物酶(POD)活性变化无明显差异;抗病品种T51A抑制叶绿素含量下降的能力及保持较高胡萝卜素含量的能力明显强于感病品种T9230.
|
| 关 键 词： | 番茄 品种 青枯菌 酶 |
| 文章编号： | 1008-9209(2005)05-0550-05 |
| 修稿时间： | 2004年11月26 |
Biochemical and physiological differences between resistant and susceptible tomato cultivars infected by Ralstonia solanacearum Smith |
| |
| SHOU Sen-yan,FENG Zhuang-zhi,YIN Yi-ping,TAN Yun,MIAO Li-xlang.Biochemical and physiological differences between resistant and susceptible tomato cultivars infected by Ralstonia solanacearum Smith[J].Journal of Zhejiang University(Agriculture & Life Sciences),2005,31(5):550-554. |
| |
| Authors: | SHOU Sen-yan FENG Zhuang-zhi YIN Yi-ping TAN Yun MIAO Li-xlang |
| |
| Abstract: | To study the physiological basis of tomato breeding for resistant to bacterial wilt,we inoculated the resistant and susceptible tomato cultivars with the pathogen bacterium to reveal the dynamic changes in the activities of four enzymes in plants of different cultivars in relation to their resistance.The results showed that the phenylanine ammonia lyase(PAL) activity of 'T51A',a resistant cultivar,was higher than that of the control(CK),while for 'T9230',a susceptible one,the activity was at about the similar level as the control(CK) following their infection by Ralstonia solanacearum.The resistant cultivar exhibited higher activity of superoxide dismutase(SOD) than the control(CK),with the peak value increased by 16.12%.But the susceptible cultivar was inferior to the CK,with the peak value decreased by 25.14%.The activity of peroxidase(POD) and polyphenoloxidase(PPO) did not differ significantly between resistant and susceptible cultivar.The capacity of the resistant cultivar in inhibiting chlorophyll disintegration and maintaining higher carotenoid content was significantly stronger than that of the susceptible cultivar. |
| |
| Keywords: | tomato cultivars Ralstonia solanacearum enzyme |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《浙江大学学报(农业与生命科学版)》浏览原始摘要信息 |
| 点击此处可从《浙江大学学报(农业与生命科学版)》下载免费的PDF全文 |
|
