| 玉米根系内生细菌种群及动态分析 |
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| 引用本文： | 高增贵,庄敬华,陈捷,刘限,唐树戈.玉米根系内生细菌种群及动态分析[J].应用生态学报,2004,15(8):1344-1348. |
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| 作者姓名： | 高增贵 庄敬华 陈捷 刘限 唐树戈 |
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| 作者单位： | 1. 沈阳农业大学植物保护学院农业部北方农作物病害免疫重点开放实验室,沈阳,110161
2. 沈阳农业大学植物保护学院农业部北方农作物病害免疫重点开放实验室,沈阳,110161;上海交通大学农业与生物学院,上海,201101 |
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| 基金项目： | 国家“十五”科学技术攻关资助项目 ( 2 0 0 1BA5 0 90 40 5 ) |
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| 摘 要： | 2000-2002年，先后对辽宁省14个玉米主栽品种进行了根系内主要细菌种群分析．结果表明．玉米内生细菌的主要种群为芽孢杆菌属(Bucillus spp．)，此外还包括肠杆菌属、沙雷氏杆菌属、假单胞菌属、黄单胞菌属和棍状杆菌属．其中Bacillus分布最广，已鉴定出8个种，包括枯草芽孢杆菌、巨大芽孢杆菌、蜡状芽孢杆菌、地衣芽孢杆菌、炭疽芽孢杆菌、蕈状芽孢杆菌、短小芽孢杆菌、环状芽孢杆菌．Bacillusspp．总量占根系内生细菌总量比苗期和成株期分别为75．5％和76．6％．内生细菌在不同玉米品种和不同生育期之间存在程度不同的差异．研究发现，品种的遗传背景与其内生细菌的种类和数量显著相关．
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| 关 键 词： | 拟步甲 鞘翅目 阿拉善高原 气象因子 空间分布格局 |
| 文章编号： | 1001-9332(2004)08-1344-05 |
| 修稿时间： | 2002年10月12 |
Population of entophytic bacteria in maize roots and its dynamic analysis |
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| GAO Zenggui ,ZHUANG Jinghua ,CHEN Jie ,LIU Xian ,TANG Shuge.Population of entophytic bacteria in maize roots and its dynamic analysis[J].Chinese Journal of Applied Ecology,2004,15(8):1344-1348. |
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| Authors: | GAO Zenggui ZHUANG Jinghua CHEN Jie LIU Xian TANG Shuge |
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| Affiliation: | Key Laboratory of North Crop Immunology China's Ministry of Agriculture, Plant Protection College, Shengyang Agricultural University. gaozenggui@sina.com |
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| Abstract: | In 2001-2002, 14 maize cultivars in Liaoning Province were used for the analysis of their entophytic bacteria population. The entophytic bacteria strains with a higher frequency in maize roots were Bacillus spp., Enterobacter spp., Serratia spp., Pseudomonas spp., Xanthomonas spp., Clavibacter spp., Bacillus spp., Enterobacter spp. and Serratia spp. Comparatively, Bacillus spp. was the most prevalent entophytic bacterium, including 8 species, B. subtilis, B. megaterium, B. cereus, B. licheniformis, B. anthracis, B. mycoides, B. pumilus and B. circulans, and with an average isolation frequency of 75.5% at seedling stage and 77.6% at adult stage. There existed significant differences in the population and dynamics of endophytic bacteria among maize cultivars and growth periods, and a significant correlation was found between maize genetic background and entophytic bacteria population. |
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| Keywords: | Maize Entophytic bacteria Population Dynamic analysis Genetic background |
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