固氮
共生
生物
真菌
植物
生态系统
氮气
蚂蚁
陆地生态系统
生物量(生态学)
氮气循环
细菌
生态学
化学
遗传学
有机化学
作者
Adrian A. Pinto‐Tomás,Mark A. Anderson,Garret Suen,David M. Stevenson,Fiona S. T. Chu,W. W. Cleland,Paul J. Weimer,Cameron R. Currie
出处
期刊:Science
[American Association for the Advancement of Science (AAAS)]
日期:2009-11-20
卷期号:326 (5956): 1120-1123
被引量:341
标识
DOI:10.1126/science.1173036
摘要
Gardening for Ants and Termites Among the social insects, ants and termites are the most diverse and ecologically dominant. Termites are known to engage in a mutualism with nitrogen-fixing bacteria, and Pinto-Tomás et al. (p. 1120 ) have identified similar relationships occurring among leaf-cutter ants, which maintain specialized nitrogen-fixing bacteria in their fungus gardens. Together, these mutualisms are a major source of nitrogen in terrestrial ecosystems. How is the evolutionary stability of such mutualistic cooperation maintained? Aanen et al. (p. 1103 ) show that the Termitomyces fungus cultured by termites remains highly related because mycelia of the same clone fuse together and grow more efficiently to out-compete rare clones.
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