首页 | 本学科首页   官方微博 | 高级检索  
     

玉米、花生根间菌丝桥对氮传递的研究
引用本文:艾为党,李晓林,左元梅,李隆. 玉米、花生根间菌丝桥对氮传递的研究[J]. 作物学报, 2000, 26(4): 473-481
作者姓名:艾为党  李晓林  左元梅  李隆
作者单位:1. 北京航天医学工程研究所,北京,100094
2. 中国农业大学植物营养系,北京,100094
基金项目:国家自然科学基金,国家重点基础研究发展计划(973计划) 
摘    要:应用五室分隔法研究了玉米和花生根间菌丝桥对氮的传递作用。 研究表明: 供体接种菌根 , 对花生、 玉米的生长均有明显的促进作用, 且对玉米的促进作用明显大于对花生的促 进 作用。 此外, 无论是以玉米为供体, 还是以花生为供体, 接种后, 均能在玉米和花 生根间形成菌丝桥, 形成的菌丝桥能传递氮, 且传递方向是双向

关 键 词:菌丝桥    15N  玉米  花 生
收稿时间:1998-07-07
修稿时间:1999-06-25

Nitrogen Transfer between Maize and Peanut by A Common Mycorrhizal Fungi
Abstract:By 15N-isotope dilution methods, the five compartments system was designed to study15N transfer via vesicular-arbuscular mycorrhizal hyphae between maize and peanut: the rootcompartment for the growth of donor and receiver plants, and two adjacent outer ones for water and hyphae growth, and the central compartment for hyphae links. Compartmentation wasaccomplished by a 30-μm nylon net mesh where hyphae could penetrate and grow while plantroots couldn't. The donor plants, which were labeled 15N by its roots absorbing directly fromsolution in the pot under the compartment at one month of plants growth, were grown in symbiosis with mycorrhizal fungus Glomus mosseae or as non-mycorrhizal controls. The plantswere harvested 40 days afterwards. The results showed that hyphae links were formed betweenroots of maize and peanut when the donor plants were inoculated, while couldn't in nonmycorrhizal controls. Mycorrhizal colonization slightly increased the N transfer from the donor to the receiver. Nitrogen uld translcated in both directions between peanut and maize. But the amount of N transferred from peanut to maize was higher than that of N transferred from maize to peanut.
Keywords:Hyphal links  Nutrient transfer  15N  Peanut  Maize
本文献已被 万方数据 等数据库收录!
点击此处可从《作物学报》浏览原始摘要信息
点击此处可从《作物学报》下载全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号