Coevolutionary legacies for plant decomposition

Cornelissen, Johannes H. C.; Cornwell, William K.; Freschet, Grégoire T.; Weedon, James T.; Berg, M.P.; Zanne, Amy E.

doi:10.1016/j.tree.2022.07.008

Cited by 22 publications

(21 citation statements)

References 99 publications

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“…Together with the lasting impact of the initial plant invasion on soil organic C, pH, and total N, our findings suggest that past invasion pathways were largely due to changes in decomposition processes. This is consistent with the observed association of these pathways with fungal networks only, as fungi are well-known for their crucial role in decomposing plant litter 24,25 . Furthermore, plant species litter attracts specific fungal decomposers 24,25 , which could explain why fungal networks were particularly linked to past compositional pathways in which plant identity plays a key role.…”

Section: Discussionsupporting

confidence: 90%

“…This is consistent with the observed association of these pathways with fungal networks only, as fungi are well-known for their crucial role in decomposing plant litter 24,25 . Furthermore, plant species litter attracts specific fungal decomposers 24,25 , which could explain why fungal networks were particularly linked to past compositional pathways in which plant identity plays a key role. The successional transformation of fungal communities from early to late decomposers suggests that changes in litter input may result in long-lasting effects 24,25 .…”

Section: Discussionsupporting

confidence: 90%

“…Given that we took six soil cores from each mesocosm and pooled these, it is likely that plant diversity pathways related to the extent of spatial heterogeneity of the communities. Diverse plant communities are inherently more spatially heterogenous above- and belowground, and this is likely to result in higher fungal diversity, as different plant species have unique associated fungi 25,35 . In other words, a higher fungal diversity would be observed when sampling at multiple spaces in a diverse plant community compared to a low diverse community.…”

Section: Discussionmentioning

confidence: 99%

“…Furthermore, plant species litter attracts specific fungal decomposers 24,25 , which could explain why fungal networks were particularly linked to past compositional pathways in which plant identity plays a key role. The successional transformation of fungal communities from early to late decomposers suggests that changes in litter input may result in long-lasting effects 24,25 . We conclude that litter input and decomposition processes likely create long-lasting soil legacies, critical for the decoupling of prokaryote and fungal networks, which ensure network stability (Fig 6).…”

Section: Plant-mediated Soil Legacies Play a Key Role In Decoupling M...mentioning

confidence: 99%

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Plant community stability is associated with a decoupling of prokaryote and fungal soil networks

Zandt

Kolaříková

Cajthaml

et al. 2022

Preprint

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Soil microbial networks play a crucial role in plant community stability. However, we lack knowledge on the network topologies associated with stability and the pathways that shape these networks. In a 13-year mesocosm experiment, we determined how natural grassland soil and soil abandoned from agricultural practices 60 years before the start of the experiment affected soil microbial network topologies. Abandoned arable soil promoted destabilising properties both above- and belowground. Aboveground, instability was associated with invading plant species reaching dominance. Belowground, instability was associated with soil microbial networks coupled in prokaryote and fungal responses, which were both shaped by a few, dominating plant community parameters. Conversely, in stable, natural grassland communities, soil prokaryote and fungal responses were decoupled. This decoupling was associated with different sets of plant community parameters shaping prokaryote and fungal niches. We conclude that plant community stability is associated with soil microbial networks with a high niche differentiation.

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Section: Discussionsupporting

confidence: 90%

Section: Discussionsupporting

confidence: 90%

Section: Discussionmentioning

confidence: 99%

Section: Plant-mediated Soil Legacies Play a Key Role In Decoupling M...mentioning

confidence: 99%

See 2 more Smart Citations

Plant community stability is associated with a decoupling of prokaryote and fungal soil networks

Zandt

Kolaříková

Cajthaml

et al. 2022

Preprint

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“…Imaging analyses that examine the localization of flavan‐3‐ols in mycorrhizal roots could further elucidate their protective roles for mycorrhizal‐associated plants. The accumulation of flavan‐3‐ols in mycorrhizal roots may also have ecological consequences as specialized metabolites can influence litter decomposition (Chomel et al, 2016; Cornelissen et al, 2022).…”

Section: Discussionmentioning

confidence: 99%

Common and lifestyle‐specific traits of mycorrhizal root metabolome reflect ecological strategies of plant–mycorrhizal interactions

et al. 2023

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1. Mycorrhizas are widespread below-ground symbioses formed between plant roots and soil fungi. This plant-fungal partnership impacts terrestrial ecosystems by mediating plant performance and biogeochemical processes. The influence of mycorrhizas on plant and ecosystem functioning is ultimately driven by the biological processes that regulate plant-mycorrhizal interactions. Although convergent patterns in morphological and genetic traits of mycorrhizas have been well-documented and reflect key selection forces that shape the biology of mycorrhizas, generalizable traits of mycorrhizal-associated root metabolome, which are more intimately linked to plant and ecosystem functioning, remain unexplored.2. Here, we compared mycorrhizal-associated metabolome alterations across multiple plant-mycorrhizal fungus combinations. Specifically, we inoculated a phylogenetically diverse set of temperate tree species with either arbuscular mycorrhizal or ectomycorrhizal fungi (the two major mycorrhizal lifestyles). Using comprehensive metabolomics approaches, we then assessed the metabolome in mycorrhizal and non-mycorrhizal roots and the corresponding leaves. 3. Comparing across multiple plant-mycorrhizal fungus combinations, our data revealed metabolite alterations unique to mycorrhizal lifestyle as well as those common across plant-fungus combinations irrespective of lifestyles. Roots colonized by arbuscular mycorrhizal and ectomycorrhizal fungi accumulated different sets of carbohydrates, reflecting unique carbon allocation strategies for mycorrhizas. Arbuscular mycorrhizal roots accumulated cyclic polyols (e.g. inositols) inaccessible to their fungal partners, suggesting tight regulation of carbon partitioning. Such accumulation did not occur in ectomycorrhizal-colonized roots, which instead accrued acyclic polyols (e.g. mannitol and arabitol) that were undetected in non-mycorrhizal roots and likely of fungal origin. Mycorrhizas also altered specialized metabolism, featuring frequent increases in flavan-3-ols (e.g. catechins, gallocatechins, and their oligomers) but decreases in flavanols irrespective of mycorrhizal lifestyles, suggesting tactical reconfiguration of specialized metabolites This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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The evolutionary adaptation of wood‐decay macrofungi to host gymnosperms differs from that to host angiosperms

Zhang,

Dong,

et al. 2024

Ecology and Evolution

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Wood‐decay macrofungi play a vital role in forest ecosystems by promoting nutrient cycling and soil structure, and their evolution is closely related to their host plants. This study investigates the potential evolutionary adaptation of wood‐decay macrofungi to their host plants, focusing on whether these relationships differ between gymnosperms and angiosperms. While previous research has suggested non‐random associations between specific fungi and plant deadwood, direct evidence of evolutionary adaptation has been lacking. Our study, conducted in a subtropical region, utilized metabarcoding techniques to identify deadwood species and associated fungi. We found significant evidence of evolutionary adaptation when considering all sampled species collectively. However, distinct patterns emerged when comparing angiosperms and gymnosperms: a significant evolutionary adaptation was observed of wood‐decay macrofungi to angiosperms, but not to gymnosperms. This variation may be due to the longer evolutionary history and more stable species interactions of gymnosperms, as indicated by a higher modularity coefficient (r = .452), suggesting greater specialization. In contrast, angiosperms, being evolutionarily younger, displayed less stable and more coevolving interactions with fungi, reflected in a lower modularity coefficient (r = .387). Our findings provide the first direct evidence of differential evolutionary adaptation dynamics of these fungi to angiosperms versus gymnosperms, enhancing our understanding of forest ecosystem carbon cycling and resource management.

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Coevolutionary legacies for plant decomposition

Cited by 22 publications

References 99 publications

Plant community stability is associated with a decoupling of prokaryote and fungal soil networks

Plant community stability is associated with a decoupling of prokaryote and fungal soil networks

Common and lifestyle‐specific traits of mycorrhizal root metabolome reflect ecological strategies of plant–mycorrhizal interactions

The evolutionary adaptation of wood‐decay macrofungi to host gymnosperms differs from that to host angiosperms

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