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| 1 | Soil microbial diversity and agro-ecosystem functioning显示文摘 | Marcel G. A. Heijden Cameron Wagg | 2013 | Plant and Soil2013，，1： | 1 |
| 2 | Diverse plant mixtures sustain a greater arbuscular mycorrhizal fungi spore viability than monocultures after 12 years显示文摘密集的土地管理可能损害土壤生物多样性,从而危害长期的土壤生产力。丛枝菌根真菌(AMF)通过与植物专一性的共生关系,在促进土壤生产力方面发挥着关键作用。然而,目前尚不清楚植物群落的性质,特别是植物物种丰富度和组成如何影响土壤中AMF种群的生存能力。本研究中,我们测试了来自不同植物功能类群的8种植物的单一栽培和不同植物的混合种植,是否可以维持更有活力的AMF繁殖体。为了回答这个问题,我们从12年的单种植物和混种植物中提取AMF孢子,并通过因子设计将单株AMF孢子与单株植物配对,并考察与AMF孢子来源和植物物种特性的交互作用。研究结果表明,不同植物混合种植的AMF孢子比单一栽培的AMF孢子更能成功地定植于多种植物和植株个体中。此外,我们还发现,来自不同混合种植的AMF孢子比来自单一栽培的AMF更能显著提高白车轴草(Trifolium repens L.)的生物量。与单一栽培相比,起源于不同植物混合种植的AMF孢子的生存能力和与多种植物相互作用的能力更强。我们的研究结果首次表明,多样的植物群落可以维持土壤中AMF的活力,也证明了多样的植物群落有潜力维持AMF繁殖体的活力对土壤健康和生产力至关重要。 | Peter Dietrich Christiane Roscher Adam Thomas Clark Nico Eisenhauer Bernhard Schmid Cameron Wagg | 2020 | Journal of Plant Ecology2020，13，4： | 0 |
| 3 | 菌根真菌可减少植物的适应性差异,但其共存取决于植物内在菌根反应的差异显示文摘植物-丛枝菌根真菌(AMF)可以调节竞争植物之间的土壤资源,以影响植物资源的捕获和适应性,使AMF成为植物共存的潜在媒介。本研究使用6种菌根状态不同的植物物种,通过生态位和适应性差异评估植物共存。在有或没有AMF的情况下,将15对竞争植物种植在一起。AMF对共存的影响是通过参数化成对的Lotka-Volterra植物竞争模型来确定的。通过比较在没有与AMF竞争的情况下生长的单个植物的枝条生物量与没有AMF的枝条生物量来确定6种植物物种对AMF的响应。研究结果表明,接种AMF减少了竞争者之间的适应度差异,但AMF介导的共存程度取决于竞争植物物种的身份。竞争植物物种之间更大的AMF响应差异减少了生态位重叠并增加了共存。这些结果说明,虽然AMF通常会减少适应性差异,但AMF的均衡效应并不总是足以克服由于生态位重叠导致的竞争不平衡,因此并不总是导致共存。相反,不同植物物种对AMF的内在生长反应可以预测生态位重叠减少,进而导致共存。这表明菌根依赖是一种旨在降低与竞争植物物种的生态位重叠程度,从而实现更多共存的植物策略。 | Cameron Wagg Andrew McKenzie-Gopsill | 2023 | Journal of Plant Ecology2023，16，2： | 0 |
| 4 | Effects of soil warming history on the performances of congeneric temperate and boreal herbaceous plant species and their associations with soil biota显示文摘Aims Climate warming raises the probability of range expansions of warm-adapted temperate species into areas currently dominated by cold-adapted boreal species.Warming-induced plant range expansions could partly depend on how warming modifies relationships with soil biota that promote plant growth,such as by mineralizing nutri-ents.Here,we grew two pairs of congeneric herbaceous plants spe-cies together in soil with a 5-year warming history(ambient,+1.7℃,+3.4℃)and related their performances to plant-beneficial soil biota.Methods Each plant pair belonged to either the mid-latitude temperate climate or the higher latitude southern boreal climate.Warmed soils were extracted from a chamberless heating experiment at two field sites in the temperate-boreal ecotone of North America.To isolate poten-tial effects of different soil warming histories,air temperature for the greenhouse experiment was identical across soils.We hypothesized that soil with a 5-year warming history in the field would enhance the performance of temperate plant species more than boreal plant species and expected improved plant performances to have positive associations with plant growth-promoting soil biota(microbial-feeding nematodes and arbuscular mycorrhizal fungi).Important Findings Our main hypothesis was partly confirmed as only one temperate spe-cies performed better in soil with warming history than in soil with his-tory of ambient temperature.Further,this effect was restricted to the site with higher soil water content in the growing season of the sampling year(prior to soil collection).One of the boreal species performed con-sistently worse in previously warmed soil,whereas the other species showed neutral responses to soil warming history.We found a positive correlation between the density of microbial-feeding nematodes and the performance of one of the temperate species in previously wetter soils,but this correlation was negative at the site with previously drier soil.We found no significant correlations between the performance of the other temperate species as well as the two boreal species and any of the studied soil biota.Our results indicate that soil warming can modify the relation between certain plant species and microbial-feeding nematodes in given soil edaphic conditions,which might be important for plant performance in the temperate-boreal ecotone. | Madhav P.Thakur Peter B.Reich Cameron Wagg Nicholas A.Fisichelli Marcel Ciobanu Sarah E.Hobbie Roy L.Rich Artur Stefanski Nico Eisenhauer | 2017 | Journal of Plant Ecology2017，10，4： | 0 |
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