| 拮抗内生细菌与附生细菌及其组合对烟草赤星病的诱导抗性和控病作用 |
| |
| 引用本文： | 易龙,肖崇刚,马冠华,杨水英.拮抗内生细菌与附生细菌及其组合对烟草赤星病的诱导抗性和控病作用[J].中国生物防治,2007,23(2):165-169. |
| |
| 作者姓名： | 易龙 肖崇刚 马冠华 杨水英 |
| |
| 作者单位： | 西南大学植物保护学院,重庆,400716 |
| |
| 基金项目： | 重庆市自然科学基金;重庆市教委资助项目 |
| |
| 摘 要： | 内生细菌菌株Itb162和附生细菌菌株Ata28能有效地抑制烟草赤星病，本试验观测和比较拮抗内生细菌和拮抗附生细菌及其混合菌液对烟草赤星病的控病作用及其对烟草苯丙氨酸解氨酶、多酚氧化酶、过氧化物酶活性的诱导情况及病程相关蛋白的变化。结果表明，内生细菌和附生细菌及其混合菌液都能显著地抑制烟草赤星病，混合菌液处理效果最好。在诱导抗性试验中，经内生细菌和混合菌液处理，烟草体内PAL、PPO、POD活性有不同程度的提高，病程相关蛋白也有量的积累，而附生细菌没有诱导作用。上述试验结果说明内生细菌比附生细菌更易对烟草产生诱导抗性，其混合作用的诱导抗性主要来自于内生细菌。
|
| 关 键 词： | 内生细菌 附生细菌 烟草赤星病 控病作用 诱导抗性 |
| 文章编号： | 1005-9261（2007）02-0165-05 |
| 修稿时间： | 2006-10-10 |
Antagonistic Endophytic and Epiphytic Bacteria, and Their Combination, Induced Tobacco to Resist against Brown Spot Disease |
| |
| YI Long,XIAO Chong-gang,MA Guan-hua,YANG Shui-ying.Antagonistic Endophytic and Epiphytic Bacteria, and Their Combination, Induced Tobacco to Resist against Brown Spot Disease[J].Chinese Journal of Biological Control,2007,23(2):165-169. |
| |
| Authors: | YI Long XIAO Chong-gang MA Guan-hua YANG Shui-ying |
| |
| Institution: | College of Plant Protection, Southwest University, Chongqing 400716, China |
| |
| Abstract: | Tobacco brown spot could be significantly suppressed by endophytic bacterium(Itb162) and epiphytic bacterium(Ata28).Phenylalanine ammonium-lyase(PAL),peroxidase(POD),and polyphenol oxidase(PPO) activities and pathogensisrelated proteins(PRP) induced by inoculation with endophytic bacterium,epiphytic bacterium and their mixture were studied.The results showed that the control efficacy could be improved by treatment with mixture;the activities of PAL,POD,and PPO were increased in various levels.PR-protein was also increased in content by treatment with endophytic bacterium.The results suggested endophytic bacterium could induce higher resistance than epiphytic bacterium,and the induced resistance of mixture mainly come from endophytic bacterium. |
| |
| Keywords: | endophytic bacteria epiphytic bacteria tobacco brown spot biocontrol induced resistance |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
