Feedback in the plant-soil system
TL;DR: In this article, the authors review the mechanistic basis and assess the evidence that feedback occurs between plants and the soil and find that the evidence of feedback is strongest for plants growing in extreme environments and for plant-mutualist or plant-enemy interactions.
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Abstract: ▪ Abstract Feedback between plants and the soil is frequently invoked on the basis of evidence of mutual effects. Feedback can operate through pathways involving soil physical properties, chemical and biogeochemical properties and processes, and biological properties, including the community composition of the microbiota and soil fauna. For each pathway, we review the mechanistic basis and assess the evidence that feedback occurs. We suggest that several properties of feedback systems (for example, their complexity, specificity, and strength relative to other ecological factors, as well as the temporal and spatial scales over which they operate) be considered. We find that the evidence of feedback is strongest for plants growing in extreme environments and for plant-mutualist or plant-enemy interactions. We conclude with recommendations for a more critical appraisal of feedback and for new directions of research. Let us not make arbitrary conjectures about the greatest matters. Heraclitus (1)
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Citations
Characterization of the Soil Bacterial Community from Selected Boxwood Gardens across the United States
Xiaoping Li,Ping Kong,Margery L. Daughtrey,Kathleen Kosta,Scott Schirmer,Matthew B. Howle,Michael Likins,Chuanxue Hong +7 more
TL;DR: In this article , the authors used the Nanopore MinION platform to characterize the soil bacterial community in these boxwood gardens and identified 66 bacterial taxa that are known to have strains with biological control activity (BCA) against plant pathogens.
Density-dependent plant-soil feedbacks of two plant species affected by plant competition.
TL;DR: In this paper, the authors conducted a fully reciprocal experiment with two plant species (Polygonum criopolitanum and Carex thunbergii) and their associated soil biota communities to untangle the relative importance of PSF and competition.
The role of plant-soil feedback in long-term species coexistence cannot be predicted from its effects on plant performance.
TL;DR: This paper investigated the role of plant-soil feedback (PSF) in intra-and interspecific competition, using two co-occurring dry grassland species as models and found strong negative intraspecific PSF for biomass production in the first year in both species.
Soil physicochemical properties explain land use/cover histories in the last sixty years in China
Hao Chen,Mehdi Rahmati,Carsten Montzka,Huiran Gao,Harry Vereecken +4 more
Interactions Between Species
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TL;DR: The limited amount of energy available at each level of the community web gives rise to competition between species with overlapping requirements and this competition constitutes an alternative direction of relationships in the community often described in the terms of trophic levels.
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