Adding experimental precision to the realism of field observations: Plant communities structure bacterial communities in a glacier forefield

Environmental Microbiology, Journal Year: 2024, Volume and Issue: 26(2)

Published: Feb. 1, 2024

Abstract Ecological studies are aligned along a realism–precision continuum ranging from field observations to controlled lab experiments that each have their own strengths and limitations. insight may be most robust when combining approaches. In successional gradient, we found correlations between plant species composition soil bacterial communities, while Shannon diversity was unrelated vegetation characteristics. To add causal understanding of the processes community assembly, designed specifically test influence on communities. Using seeds our site, added different combinations surface‐sterilised homogenised samples in microcosms analysed communities 4 months later. Our results confirmed suggesting experimental shaped composition, unaffected. These reflect intimate plant–bacteria interactions important drivers health assembly. While this study provided insights into role plants underlying assembly did not experimentally manipulate other such as abiotic factors. Therefore, recommend multi‐factorial laboratory quantify relative importance factors contributing microbial composition.

Language: Английский

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Rapid differentiation of soil and root microbiomes in response to plant composition and biodiversity in the field

ISME Communications, Journal Year: 2023, Volume and Issue: 3(1)

Published: April 19, 2023

Research suggests that microbiomes play a major role in structuring plant communities and influencing ecosystem processes, however, the relative roles strength of change microbial components have not been identified. We measured response fungal, arbuscular mycorrhizal fungal (AMF), bacteria, oomycete composition 4 months after planting field plots varied diversity. Plots were planted using 18 prairie species from three families (Poaceae, Fabaceae, Asteraceae) monoculture, 2, 3, or 6 richness mixtures either within multiple one family. Soil cores collected homogenized per plot DNA extracted soil roots each plot. found all groups responded to design, indicating rapid microbiome composition. Fungal pathogen strongly affected by identified OTUs genera putatively pathogenic fungi increased with family, likely specificity. Bacteria differentiated family but soil. diversity richness, while diversity, as well bacterial roots, decreased. AMF differentiation was detected individual species, richness. saprotroph between plots, providing evidence for decomposer home-field advantage. The observed patterns are consistent composition, which could generate feedbacks on growth field, thereby potentially community structure, influence processes. These findings highlight importance native inoculation restoration.

Language: Английский

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Using root economics traits to predict biotic plant soil-feedbacks

Plant and Soil, Journal Year: 2023, Volume and Issue: 485(1-2), P. 71 - 89

Published: March 2, 2023

Plant-soil feedbacks have been recognised as playing a key role in range of ecological processes, including succession, invasion, species coexistence and population dynamics. However, there is substantial variation between the strength plant-soil predicting this remains challenging. Here, we propose an original concept to predict outcome feedbacks. We hypothesize that plants with different combinations root traits culture proportions pathogens mutualists their soils contributes differences performance home (cultured by conspecifics) versus away heterospecifics). use recently described economics space, which identifies two gradients traits. A conservation gradient distinguishes fast vs. slow species, from growth defence theory these amounts soils. collaboration associate mycorrhizae outsource soil nutrient acquisition those "do it yourself" strategy capture nutrients without relying strongly on mycorrhizae. provide framework, predicts direction biotic feedback pair determined dissimilarity them along each axis space. then data case studies show how apply analysing response measures distance position find some support for our predictions. Finally, highlight further areas where framework could be developed study designs would help fill current research gaps.

Language: Английский

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Harnessing microbial interactions with rice: Strategies for abiotic stress alleviation in the face of environmental challenges and climate change

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 912, P. 168847 - 168847

Published: Nov. 28, 2023

Language: Английский

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Forest tree community ecology and plant–soil feedback: Theory and evidence

Ecological Research, Journal Year: 2024, Volume and Issue: 39(3), P. 257 - 272

Published: Jan. 30, 2024

Abstract Mounting evidence suggests that reciprocal interactions between plants and the soil microbiota can be a primary force generates key macroscopic patterns of plant communities (coexistence, dominance, succession) in forest ecosystems. The aim this article is to review empirical theoretical perspectives plant–soil feedback research context community ecology. I first use simple model get insights into an array dynamics generated by feedback: negative maintains species diversity reduces growth, while positive drives growth certain hence their dominance. then describe how ecologists have unveiled enormously complex plant‐microbiota interaction (i.e., conditioning experiment) linkage with three patterns: (i) (ii) spatial structure (iii) succession. highlight one belowground trait (mycorrhizal type) mediate these linkages: arbuscular mycorrhizal tend exhibit ectomycorrhizal feedback. Although potentially explains tree from local global scales, many questions remain. Future studies should expand theory incorporate numerous other mechanisms test types net effects could propagate shape large‐scale structures dynamics.

Language: Английский

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