Mycorrhizal fungal diversity determines plant biodiversity, ecosystem variability and productivity
Mycorrhizal fungal diversity determines plant biodiversity, ecosystem variability and productivity
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DOI：
10.1038/23932
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发表时间：
1998-11-05
期刊：
影响因子：
64.8
通讯作者：
Sanders, IR
中科院分区：
文献类型：
--
作者：
van der Heijden, MGA;Klironomos, JN;Sanders, IR
陆地生态系统的功能和稳定性取决于植物生物多样性和物种组成（1-5）。然而.调节和维持植物生物多样性和物种组成的生态机制尚未得到很好的理解。需要确定这些机制，以确保成功管理各种自然生态系统的养护和恢复。在这里，我们表明，通过使用两个独立的，但互补的生态实验，地下丛枝菌根真菌（AMF）的多样性是一个主要因素，有助于维持植物的生物多样性和生态系统功能。在低AMF多样性，植物物种组成和整体结构的缩影，模拟欧洲石灰质草原波动很大时，AMF类群，目前的变化。在模拟北美老田的大宇宙中，植物生物多样性、养分捕获和生产力随着AMF物种丰富度的增加而显著增加。这些结果强调了保护AMF的必要性，并在未来的管理实践中考虑这些真菌，以保持多样的生态系统。我们的研究结果还表明，微生物相互作用可以驱动生态系统功能，例如植物生物多样性、生产力和变异性。
The functioning and stability of terrestrial ecosystems are determined by plant biodiversity and species composition(1-5). However. the ecological mechanisms by which plant biodiversity and species composition are regulated and maintained are not well understood. These mechanisms need to be identified to ensure successful management for conservation and restoration of diverse natural ecosystems. Here we show,by using two-independent, but complementary, ecological experiments, that below-ground diversity of arbuscular mycorrhizal fungi (AMF) is a major factor contributing to the maintenance of plant biodiversity and to ecosystem functioning. At low AMF diversity, the plant species composition and overall structure of microcosms that simulate European calcareous grassland fluctuate greatly when the AMF taxa that are present are changed. Plant biodiversity, nutrient capture and productivity in macrocosms that simulate North American old-fields increase significantly with increasing AMF-species richness. These results emphasize the need to protect AMF and to consider these fungi in future management practices in order to maintain diverse ecosystems. Our results also show that microbial interactions can drive ecosystem functions such as plant biodiversity, productivity and variability.