| 桑树内生拮抗细菌枯草芽孢杆菌L144对植物生长及营养代谢的影响 |
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| 引用本文： | 高绘菊,付信芝,董法宝,唐芬芬,王彦文,牟志美.桑树内生拮抗细菌枯草芽孢杆菌L144对植物生长及营养代谢的影响[J].蚕业科学,2010,36(2):214-220. |
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| 作者姓名： | 高绘菊 付信芝 董法宝 唐芬芬 王彦文 牟志美 |
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| 作者单位： | 山东农业大学林学院,山东,泰安,271018;山东省临沭县临沭镇林业站,山东,临沂,276700;华南农业大学动物科学学院,广州,510642 |
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| 基金项目： | 现代农业产业技术体系建设专项(蚕桑)项目，公益性行业(农业)科研专项项目，山东省自然科学基金项目 |
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| 摘 要： | 桑树内生拮抗细菌枯草芽孢杆菌(Bacillus subtilis)L144对多种植物病原菌具有较强的抑制作用。为进一步探讨该内生菌的开发应用价值,研究了该内生菌对植物生长及营养代谢的影响。试验结果表明:适当浓度的L144菌株培养液能明显提高玉米和桑树种子的发芽势、发芽率和胚根长,增加玉米和桑树幼苗的株高及植株鲜质量和干质量,提高植株体内叶绿素、可溶性蛋白和可溶性糖的含量,且以菌株培养液10倍稀释液的促生作用最为显著;该菌株的菌体悬浮液及胞外分泌物对玉米幼苗也表现出不同程度的促生作用;该菌株还具有分泌植物生长激素、溶解无机磷和有机磷的性能,有可能是其促进植株生长的主要作用机制。试验结果提示,L144菌株的培养液及菌体和胞外分泌物对植物有较明显的促生作用。
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| 关 键 词： | 桑树 内生细菌 枯草芽孢杆菌L144菌株 植物生长 植物营养代谢 |
Effects of Mulberry Antagonistic Endophytic Bacterium Bacillus subtilis L144 on Growth Promotion and Nutrition Metabolism of Plants |
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| GAO Hui-Ju,FU Xin-Zhi,DONG Fa-Bao,TANG Fen-Fen,WANG Yan-Wen,MU Zhi-Mei.Effects of Mulberry Antagonistic Endophytic Bacterium Bacillus subtilis L144 on Growth Promotion and Nutrition Metabolism of Plants[J].Acta Sericologica Sinica,2010,36(2):214-220. |
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| Authors: | GAO Hui-Ju FU Xin-Zhi DONG Fa-Bao TANG Fen-Fen WANG Yan-Wen MU Zhi-Mei |
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| Institution: | GAO Hui-Ju1 FU Xin-Zhi2 DONG Fa-Bao1 TANG Fen-Fen3 WANG Yan-Wen1 MU Zhi-Mei1(1College of Forestry,Sh,ong Agricultural University,Taian Sh,ong 271018,China,2Forestry Station of Linshu Town,Linshu County,Linyi Sh,ong 276700,3College of Animal Sciences,South China Agricultural University,Guangzhou 510642,China) |
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| Abstract: | Mulberry antagonistic endophytic bacterium Bacillus subtilis L144 has strong inhibitory effect on various plant pathogens.In order to further explore the development and application value of this bacterium so as to provide new resources for plant microbioecologics,its effects on growth promotion and nutrition metabolism of plants were investigated.The results showed that the culture solution of bacterial strain L144 at certain concentrations could heighten the germinability,germination rate and radicular le... |
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| Keywords: | Morus L Endophytic bacterium Bacillus subtilis strain L144 Plant growth Plant nutrition metabolism |
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