Integrating physiological, community, and evolutionary perspectives on the arbuscular mycorrhizal symbiosis

被引:44
|
作者
Lekberg, Ylva [1 ]
Koide, Roger T. [2 ]
机构
[1] Univ Montana, Dept Ecosyst & Conservat Sci, Missoula, MT 59812 USA
[2] Brigham Young Univ, Dept Biol, Provo, UT 84602 USA
基金
美国食品与农业研究所; 美国国家科学基金会;
关键词
arbuscular mycorrhiza; mutualism; parasitism; physiology; evolution; community ecology; FUNCTIONAL DIVERSITY; PHOSPHORUS FLUXES; UNDISTURBED VEGETATION; PLANT NUTRITION; FUNGI; CARBON; GROWTH; ROOTS; SPECIFICITY; NITROGEN;
D O I
10.1139/cjb-2013-0182
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
Our knowledge of arbuscular mycorrhizal (AM) function is largely based on results from short-term studies in controlled environments. While these have provided many important insights into the potential effects of the symbiosis on the two symbionts and their communities, they may have also inadvertently led to faulty assumptions about the function of the symbiosis in natural settings. Here we highlight the consequences of failing to consider the AM symbiosis from the perspectives of community ecology and evolutionary biology. Also, we argue that by distinguishing between physiological and evolutionary viewpoints, we may be able to resolve controversies regarding the mutualistic vs. parasitic nature of the symbiosis. Further, while most AM research has emphasized resource transfers, primarily phosphate and carbohydrate, our perceptions of parasitism, cheating, bet-hedging, and partner choice would most likely change if we considered other services. Finally, to gain a fuller understanding of the role of the AM symbiosis in nature, we need to better integrate physiological processes of plants and their AM fungi with their naturally occurring temporal and spatial patterns. It is our hope that this article will generate some fruitful discussions and make a contribution toward this end.
引用
收藏
页码:241 / 251
页数:11
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