外源水杨酸诱导玉米纹枯病抗性的生理机制
分别以抗、感纹枯病的玉米自交系CML429、DM9为材料,研究接种纹枯病菌后喷施水杨酸对玉米叶片过氧化物酶、超氧化物歧化酶活性及产量的影响。结果表明,接种纹枯病菌后5d内,两玉米自交系叶片SOD活性先下降后升高并回到初始水平,而POD活性则表现持续的升高,CML429的SOD、POD活性均明显高于DM9。用不同浓度的水杨酸处理玉米叶片后,两个玉米自交系的SOD活性均逐渐下降,而POD则先略有下降后逐渐升高,在达到高峰后大部分处理有所回落。此外,所有外源水杨酸处理均能增强高感玉米自交系DM9对纹枯病的抗性,明显提高玉米产量,平均产量比对照高17.97%,而对抗性自交系的产量没有明显效果,以0.5...
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| Published in | Guangxi nong ye ke xue Vol. 40; no. 3; pp. 242 - 245 |
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| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
广西玉米研究所,南宁明阳,530227
2009
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1002-8161 |
| DOI | 10.3969/j.issn.2095-1191.2009.03.006 |
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| Abstract | 分别以抗、感纹枯病的玉米自交系CML429、DM9为材料,研究接种纹枯病菌后喷施水杨酸对玉米叶片过氧化物酶、超氧化物歧化酶活性及产量的影响。结果表明,接种纹枯病菌后5d内,两玉米自交系叶片SOD活性先下降后升高并回到初始水平,而POD活性则表现持续的升高,CML429的SOD、POD活性均明显高于DM9。用不同浓度的水杨酸处理玉米叶片后,两个玉米自交系的SOD活性均逐渐下降,而POD则先略有下降后逐渐升高,在达到高峰后大部分处理有所回落。此外,所有外源水杨酸处理均能增强高感玉米自交系DM9对纹枯病的抗性,明显提高玉米产量,平均产量比对照高17.97%,而对抗性自交系的产量没有明显效果,以0.5mmol/L的处理效果最好。因此,外源水杨酸处理能降低玉米植株体内的活性氧水平,减轻纹枯病菌的伤害。 |
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| AbstractList | S435.131; 分别以抗、感纹枯病的玉米自交系CMLA29、DM9为材料,研究接种纹枯病菌后喷施水杨酸对玉米叶片过氧化物酶、超氧化物歧化酶活性及产量的影响.结果表明,接种纹枯病菌后5d内,两玉米自交系叶片SOD活性先下降后升高并回到初始水平,而POD活性则表现持续的升高,CMLA29的SOD、POD活性均明显高于DM9.用不同浓度的水杨酸处理玉米叶片后,两个玉米自交系的SOD活性均逐渐下降,而POD则先略有下降后逐渐升高,在达到高峰后大部分处理有所回落.此外,所有外源水杨酸处理均能增强高感玉米自交系DM9对纹枯病的抗性,明显提高玉米产量,平均产量比对照高17.97%,而对抗性自交系的产量没有明显效果,以0.5mmol/L的处理效果最好.因此,外源水杨酸处理能降低玉米植株体内的活性氧水平,减轻纹枯病菌的伤害. 分别以抗、感纹枯病的玉米自交系CML429、DM9为材料,研究接种纹枯病菌后喷施水杨酸对玉米叶片过氧化物酶、超氧化物歧化酶活性及产量的影响。结果表明,接种纹枯病菌后5d内,两玉米自交系叶片SOD活性先下降后升高并回到初始水平,而POD活性则表现持续的升高,CML429的SOD、POD活性均明显高于DM9。用不同浓度的水杨酸处理玉米叶片后,两个玉米自交系的SOD活性均逐渐下降,而POD则先略有下降后逐渐升高,在达到高峰后大部分处理有所回落。此外,所有外源水杨酸处理均能增强高感玉米自交系DM9对纹枯病的抗性,明显提高玉米产量,平均产量比对照高17.97%,而对抗性自交系的产量没有明显效果,以0.5mmol/L的处理效果最好。因此,外源水杨酸处理能降低玉米植株体内的活性氧水平,减轻纹枯病菌的伤害。 |
| Author | 江禹奉 程伟东 覃兰秋 谭贤杰 周锦国 谢和霞 陈露 |
| AuthorAffiliation | 广西玉米研究所,南宁明阳530227 |
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| Author_FL | JIANG Yu-feng XIE He-xia CHEN Lu ZHOU Jin-guo CHENG Wei-dong QIN Lan-qiu TAN Xian-jie |
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| Keywords | 立枯丝核菌 玉米 超氧化物歧化酶 过氧化物酶 纹枯病 水杨酸 |
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| Notes | maize (Zea Mays L) ; sheath blight ; salicylic acid ; Rhizoctonia solani; superoxide dismutase ; peroxidase 45-1129/S peroxidase superoxide dismutase sheath blight Rhizoctonia solani S435.131 salicylic acid maize (Zea Mays L) |
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| Snippet | 分别以抗、感纹枯病的玉米自交系CML429、DM9为材料,研究接种纹枯病菌后喷施水杨酸对玉米叶片过氧化物酶、超氧化物歧化酶活性及产量的影响。结果表明,接种纹枯病菌后5d内,两... S435.131; 分别以抗、感纹枯病的玉米自交系CMLA29、DM9为材料,研究接种纹枯病菌后喷施水杨酸对玉米叶片过氧化物酶、超氧化物歧化酶活性及产量的影响.结果表明,接种纹枯病菌... |
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| SubjectTerms | 水杨酸 玉米 立枯丝核菌 纹枯病 超氧化物歧化酶 过氧化物酶 |
| Title | 外源水杨酸诱导玉米纹枯病抗性的生理机制 |
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