Influence of Mycorrhiza on C:N:P Stoichiometry in Senesced Leaves

Wu, Shanwei; Shi, Zhengxiang; Huang, Ming; Yang, Shuang; Yang, Wenya; Li, Youjun

doi:10.3390/jof9050588

Cited by 2 publications

(2 citation statements)

References 99 publications

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“…carbon:nitrogen:phosphorus ratio, lignin concentration), which can influence colonization of decomposers and their interactions, also has a profound impact on this process (Graça et al., 2001; Yue et al., 2022). Moreover, a growing number of studies have suggested that mycorrhizal association of plants has a strong link with leaf chemistry (Keller & Phillips, 2019; Wu et al., 2023; Zhang et al., 2019). Plants associated with arbuscular mycorrhizae (AM) are usually associated with lower lignin and cellulose concentrations (Peng et al., 2022), and lower carbon:nitrogen ratios (Taylor et al., 2016) compared with those associated with ectomycorrhizae (EcM), and such traits can influence the rate at which leaf litter decomposes.…”

Section: Introductionmentioning

confidence: 99%

Multiple‐stressor effects on leaf litter decomposition in freshwater ecosystems: A meta‐analysis

Medina Madariaga,

Ferreira,

Arora

et al. 2024

Functional Ecology

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Recent years have witnessed a surge in research on the effects of multiple stressors in freshwater ecosystems. While studies have increased, the synthesis of their findings into a broader understanding of ecosystem‐level effects remains an ongoing endeavour. Leaf litter decomposition, a frequently investigated and pivotal ecosystem function in freshwaters, is sensitive to changes in abiotic conditions and biotic communities, and therefore susceptible to multiple‐stressor effects. Here, we synthesize findings from 27 manipulative experimental studies encompassing 61 responses of litter decomposition to paired stressors such as warming, nutrient enrichment and emerging pollutants in freshwater ecosystems. We calculated the individual and overall interaction effect sizes resulting from two stressors occurring simultaneously. Furthermore, we analysed the effect of moderator variables in the size and direction of interaction effect sizes using a meta‐analytical approach. Although the vote‐counting method showed additive interactions to dominate individual observations (91.8%), weighted random‐effects meta‐analysis revealed an overall antagonistic interaction between stressors (i.e. the cumulative effect of paired stressors on litter decomposition was less than the sum of their single effects). Our results emphasized the influence of experimental characteristics such as macroinvertebrate involvement, habitat type (lentic vs. lotic) and litter quality (assumed from plant mycorrhizal association) in shaping the responses of litter decomposition to multiple stressors. Our meta‐analysis highlights the need to incorporate local ecological complexities in manipulative experiments to improve predictions of multiple‐stressor effects on biodiversity and ecosystem functions. The present study underscores the importance of considering biotic interactions and adopting the metacommunity framework in conservation and restoration actions to support the management of freshwater ecosystems in an era of rapid global change. Read the free Plain Language Summary for this article on the Journal blog.

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Section: Introductionmentioning

confidence: 99%

Multiple‐stressor effects on leaf litter decomposition in freshwater ecosystems: A meta‐analysis

Medina Madariaga,

Ferreira,

Arora

et al. 2024

Functional Ecology

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“…C:N:P stoichiometry can reflect nutrient restriction in plants, which is a crucial index of nutrient decomposition [5]. Many studies have focused on the response of the leaf C:N:P stoichiometry to environmental changes at regional scales [6,7]; however, little is known about the fine-root C:N:P stoichiometry.…”

Section: Introductionmentioning

confidence: 99%

Fine-Root C:N:P Stoichiometry and Its Driving Factors Are Different between Arbuscular and Ectomycorrhizal Plants in China

Jing,

Shi,

Gao

et al. 2023

Agronomy

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Fine roots are essential for terrestrial biogeochemical cycles. Mycorrhizal fungi’s functions in regulating the uptake of carbon (C), nitrogen (N), and phosphorus (P) in plants are increasingly being recognized. However, the influence of mycorrhizae on Chinese plants’ fine-root stoichiometry has not been considered. Herein, 772 plants with identified mycorrhizal types were divided into arbuscular mycorrhizal (AM) and ectomycorrhizal (ECM) types to investigate the differences in their fine-root stoichiometry and their driving factors. The results showed that the AM and ECM fine-root stoichiometries were significantly different (p < 0.001; p < 0.05). The AM plants’ fine-root stoichiometry was mainly affected by the soil environment (8.76–90.12%), while ECM plants were more sensitive to climatic factors (23.51–52.41%). Further analysis showed that the mean annual temperature (MAT) was significantly correlated with AM plants’ fine-root C and P and ECM plants’ fine-root N and P. Mean annual precipitation (MAP) was significantly correlated with all AM plants’ fine-root elements (p < 0.01) but was only negatively correlated with ECM fine-root P. It was concluded that the mycorrhizal type affects the response of the fine-root stoichiometry to climate and soil variations. Therefore, the mycorrhizal effect deserves attention when studying the relationship between plant nutrient uptake and environmental changes.

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Influence of Mycorrhiza on C:N:P Stoichiometry in Senesced Leaves

Cited by 2 publications

References 99 publications

Multiple‐stressor effects on leaf litter decomposition in freshwater ecosystems: A meta‐analysis

Multiple‐stressor effects on leaf litter decomposition in freshwater ecosystems: A meta‐analysis

Fine-Root C:N:P Stoichiometry and Its Driving Factors Are Different between Arbuscular and Ectomycorrhizal Plants in China

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