Mycorrhizal type of woody plants influences understory species richness in British broadleaved woodlands.
Mycorrhizal type of woody plants influences understory species richness in British broadleaved woodlands.
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DOI：
10.1111/nph.18274
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发表时间：
2022-09
期刊：
影响因子：
9.4
通讯作者：
Pickles, Brian J.
中科院分区：
文献类型：
--
作者：
Guy, Petra;Sibly, Richard;Smart, Simon M.;Tibbett, Mark;Pickles, Brian J.
关键词：
成熟的温带林地通常以外生菌根乔木为主，而林下植物主要形成丛枝菌根协会。由于冠层和地面层植被之间的植物-真菌相容性不同，“菌根调节假说”预测，草本植物的建立可能受到缺乏合适的菌根真菌接种的限制。我们检查了1971年和2000年记录的英国103个林地的植物物种数据，以检验草本植物物种丰富度是否与丛枝菌根木本植物的比例有关。我们比较了菌根类型与其他林地植物物种丰富度的重要驱动因素的影响。我们发现丛枝菌根木本植物的相对丰富度对草本植物的物种丰富度有积极的影响。观察到的影响小于pH的影响。此外，尽管许多林地经历了显著的演替变化和更多的林下阴影，但这种影响随着时间的推移而持续存在。这项工作支持英国林地的菌根调节假说，并表明丛枝菌根木本植物丰富度的增加与更多的林下植物物种丰富有关。
Mature temperate woodlands are commonly dominated by ectomycorrhizal trees, whereas understory plants predominantly form arbuscular mycorrhizal associations. Due to differences in plant–fungus compatibility between canopy and ground layer vegetation the ‘mycorrhizal mediation hypothesis’ predicts that herbaceous plant establishment may be limited by a lack of suitable mycorrhizal fungal inoculum. We examined plant species data for 103 woodlands across Great Britain recorded in 1971 and in 2000 to test whether herbaceous plant species richness was related to the proportion of arbuscular mycorrhizal woody plants. We compared the effect of mycorrhizal type with other important drivers of woodland plant species richness. We found a positive effect of the relative abundance of arbuscular mycorrhizal woody plants on herbaceous plant species richness. The size of the observed effect was smaller than that of pH. Moreover, the effect persisted over time, despite many woodlands undergoing marked successional change and increased understorey shading. This work supports the mycorrhizal mediation hypothesis in British woodlands and suggests that increased abundance of arbuscular mycorrhizal woody plants is associated with greater understory plant species richness.
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DOI：
10.1073/pnas.1704022114
发表时间：
2017-10-17
影响因子：
11.1
作者：
Gehring, Catherine A.;Sthultz, Christopher M.;Whitham, Thomas G.
通讯作者：
Whitham, Thomas G.
影响因子：
4.8
作者：
Akhmetzhanova, A. A.;Soudzilovskaia, N. A.;Cornelissen, J. H. C.
通讯作者：
Cornelissen, J. H. C.
影响因子：
56.9
作者：
Bennett, Jonathan A.;Maherali, Hafiz;Klironomos, John
通讯作者：
Klironomos, John
影响因子：
2
作者：
Gelman, Andrew
通讯作者：
Gelman, Andrew
影响因子：
5.2
作者：
Aussenac, Raphael;Bergeron, Yves;Drobyshev, Igor
通讯作者：
Drobyshev, Igor