Nitrogen and phosphorus additions affect fruiting of ectomycorrhizal fungi in a temperate hardwood forest

IF 1.9 3区环境科学与生态学 Q3 ECOLOGY Fungal Ecology Pub Date : 2024-10-07 DOI:10.1016/j.funeco.2024.101388

Claudia Bashian-Victoroff , Ruth D. Yanai , Thomas R. Horton , Louis J. Lamit

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Abstract

The functioning of mycorrhizal symbioses is tied to soil nutrient status, suggesting that nutrient availability should influence the reproduction of mycorrhizal fungi. To quantify the effects of nitrogen (N) and phosphorus (P) availability on ectomycorrhizal fungal fruiting, we collected >4000 epigeous sporocarps representing 19 families during the course of a season in a full factorial NxP addition experiment in six replicate forest stands. Nutrient effects on fruiting shifted as the season progressed, with early fruiting species responding more to P and late-fruiting species responding more to N. The composition of species fruiting in young successional forests differed more with nutrient addition than in mature forests. Sporocarp abundance and species richness were suppressed by N addition. This work shows that N and P availability affect ectomycorrhizal fungal fruiting, with these effects taking place within a context defined by stand age and the progression of fruiting across the season.

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氮和磷的添加影响温带硬木林中外生菌根真菌的结果

菌根共生体的功能与土壤养分状况息息相关，这表明养分的可用性会影响菌根真菌的繁殖。为了量化氮（N）和磷（P）的供应对外生菌根真菌结果的影响，我们在六个重复林分中进行了一次全因子 NxP 添加实验，在一个季节中收集了代表 19 个科的 4000 个附生孢子块。养分对结果的影响随着季节的进展而变化，早期结果的物种对钾的反应更大，晚期结果的物种对氮的反应更大。孢子囊丰度和物种丰富度受到氮添加的抑制。这项研究表明，氮和磷的可用性会影响外生菌根真菌的结果，而这些影响是在林分年龄和整个季节结果进展的背景下产生的。

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来源期刊

Fungal Ecology 环境科学-生态学

CiteScore

5.80

自引率

3.40%

发文量

审稿时长

3 months

期刊介绍： Fungal Ecology publishes investigations into all aspects of fungal ecology, including the following (not exclusive): population dynamics; adaptation; evolution; role in ecosystem functioning, nutrient cycling, decomposition, carbon allocation; ecophysiology; intra- and inter-specific mycelial interactions, fungus-plant (pathogens, mycorrhizas, lichens, endophytes), fungus-invertebrate and fungus-microbe interaction; genomics and (evolutionary) genetics; conservation and biodiversity; remote sensing; bioremediation and biodegradation; quantitative and computational aspects - modelling, indicators, complexity, informatics. The usual prerequisites for publication will be originality, clarity, and significance as relevant to a better understanding of the ecology of fungi.