| 丛枝菌根真菌与根瘤菌对3种豆禾混播植物种间互作的影响 |
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| 引用本文： | 潘越,周冀琼,郭川,杨喆,刘琳,闫艳红,赵艳兰,刘珊,孙飞达.丛枝菌根真菌与根瘤菌对3种豆禾混播植物种间互作的影响[J].草地学报,2021,29(4):644-654. |
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| 作者姓名： | 潘越 周冀琼 郭川 杨喆 刘琳 闫艳红 赵艳兰 刘珊 孙飞达 |
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| 作者单位： | 四川农业大学草业科技学院,四川成都 611130 |
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| 基金项目： | 国家自然科学青年基金项目(31901379);四川省科技厅应用基础项目(2019YJ0431);新疆维吾尔自治区区域协同创新专项(科技援疆计划2019E0211)资助。 |
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| 摘 要： | 丛枝菌根真菌(Arbuscular mycorrhizal fungi,AMF)和根瘤菌是两类重要的土壤微生物,可与宿主植物形成互利共生关系.本研究通过对多年生黑麦草(Loliumperenne)、鸭茅(Dactylis glomerata)和白三叶(Trifolium repens)构建的混播组合接种AMF和根瘤菌,...
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| 关 键 词： | 豆禾混播 丛枝菌根真菌 根瘤菌 种间竞争 |
| 收稿时间： | 2020-10-21 |
Arbuscular Mycorrhizal Fungi and Rhizobia Regulate Plant Interspecific Interaction of Three Legumes and Grasses Species |
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| PAN Yue,ZHOU Ji-qiong,GUO Chuan,YANG Zhe,LIU Lin,YAN Yan-hong,ZHAO Yan-lan,LIU Shan,SUN Fei-da.Arbuscular Mycorrhizal Fungi and Rhizobia Regulate Plant Interspecific Interaction of Three Legumes and Grasses Species[J].Acta Agrestia Sinica,2021,29(4):644-654. |
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| Authors: | PAN Yue ZHOU Ji-qiong GUO Chuan YANG Zhe LIU Lin YAN Yan-hong ZHAO Yan-lan LIU Shan SUN Fei-da |
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| Institution: | College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu, Sichuan Province 611130, China |
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| Abstract: | Arbuscular mycorrhizal fungi(AMF)and rhizobia are well-known microbes which can influence plant coexistence and grassland productivity,due to their complementary roles in meeting plant nutritional needs.However,the effect of these two microbial symbionts on the component of a plant community varies with the mycorrhizal dependence of different species.Our study was conducted to measure the effects of AMF,rhizobia and their potential interactions on the productivity and interspecific competition of different plant species.Trifolium repens,Lolium perenne and Dactylis glomerata were used to establish legumes-grasses mixture,associated with AMF/rhizobia or both AMF and rhizobia.The plant height and biomass of T.repens were greater in monocultures than polycultures,whereas the plant height and biomass of L.perenne and D.glomerata were greater in polycultures than their monocultures respectively.Compared to non-AMF inoculated treatments,AMF inoculation significantly promoted plant height,aboveground biomass and root nodulation of T.repens,but decreased the biomass of D.glomerata in polycultures.This resulted in the decreased competitive exclusion from dominant grass,D.glomerata.Co-inoculated with AMF and rhizobia typically altered interspecies competitive relationship between legumes and grasses,significantly increased the root development and N 2 fixing capability of T.repens,and enhanced soil nutrient availability for neighbouring grasses.Our study promise that these two microbial symbioses are critical drivers of productivity and stability of legumes-grasses mixture. |
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| Keywords: | Legumes-grasses mixture Arbuscular mycorrhizal fungi Rhizobia Interspecific competition |
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