| 摘要: |
| 在灭菌条件下，利用人工接种丛枝菌根真菌（Arbuscular mycorrhizal fungi，AMF）的方法，探讨不同AMF对枣树幼苗生长的影响以及在枣树和小麦之间所形成的菌丝网络（Common mycorrhizal networks，CMNs）对间作小麦的生物量、氮和磷浓度及含量的影响，揭示枣麦间作系统中CMNs的形成对间作小麦生长及养分吸收利用的调节机理。结果表明：1）不同AMF对枣树生长具有很大的差异性，接种Funneliformis intraradices和F.mosseae处理的枣苗的生物量分别是不接种处理的1.06和1.31倍；2）在枣麦间作系统中CMNs的形成可显著促进相邻小麦对磷元素的吸收，当接种AMF时，30.00 μm网膜处理小麦磷含量分别是Seal和0.45 μm处理的1.49和1.38倍。综上所述，不同AMF对枣苗的生长及氮、磷养分吸收具有明显的差异；在枣树和小麦之间所形成的CMNs可以改善小麦对磷养分的吸收利用，促进间作小麦的生长。 |
| 关键词: 枣树 小麦 间作系统 丛枝菌根真菌 菌丝网络 |
| DOI：10.11841/j.issn.1007-4333.2018.03.03 |
| 投稿时间：2017-03-28 |
| 基金项目:国家自然科学基金-地区科学基金项目（31560587）；新疆农业科学院青年科技基金项目（xjnkq-2014019）；国家现代农业产业技术体系专项（CARS-3-2-51） |
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| Effects of common mycorrhizal networks on wheat growth in jujube-wheat intercropping system |
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QIAO Xu1,2, XUE Lihua1, CHEN Xingwu1
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| (1.Institute of Grain Crops, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China;2.Institute of Medicinal Plant Development/Key Laboratory Bioactive Substances and Resources Utilization of Chinese Herbal Medicine of the Ministry of Education, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, China) |
| Abstract: |
| To reveal the formation of common mycorrhizal networks (CMNs) on wheat growth and nutrient absorption regulating mechanism in jujube-wheat intercropping system,the influence of different AMF on the growth of jujube tree seedlings, by using arbuscular mycorrhizal fungi (AMF) inoculation method under sterilized conditions, and the effect of CMNs on wheat growth,N/P concentration,and N/P content were investigated.The results showed that:1) Different AMF displayed significant different impacts on the growth of jujube tree seedlings.The biomass of jujube seedlings that inoculated Funneliformis intraradices and F. mosseae treatments were respectively 1.06 and 1.31 times higher than that of control;2) The formation of CMNs between jujube tree and neighboring wheats significantly promoted P absorption of the neighboring wheats.Under inoculated AMF conditions,the P content of 30.00 μm mesh treatment were respectively 2.09 and 1.38 times higher than that of the seal and 0.45 μm mesh treatments.In conclusion,different AMF showed significant difference in the growth and N and P content of jujube seedlings.The formation of CMNs between jujube tree and neighboring wheats could significantly improve P absorption for the neighboring wheats and promote the growth of wheat ultimately. |
| Key words: jujube wheat intercropping system Arbuscular mycorrhizal fungi common mycorrhizal networks |
