Self-Inhibition Effects of Litter-Mediated Plant-Phyllosphere Feedback on Seedling Growth in Invasive and Native Congeneric Species
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View abstract on PubMed
Summary
This summary is machine-generated.Plant-phyllosphere feedback (PPF) affects plant growth, with negative feedback common across species. This study found similar feedback intensity between invasive and native plants, suggesting microbial advantages for invaders.
Area Of Science
- Ecology
- Plant Science
- Microbiology
Background
- Plant-phyllosphere feedback (PPF) involves microbes from plant litter influencing plant growth via aerosols.
- The cross-species generality and role of PPF in plant invasions are not fully understood.
Purpose Of The Study
- To investigate the universality of PPF across different plant families.
- To compare PPF intensity between invasive and native plant species.
- To explore the relationship between PPF strength and plant traits/phylogeny.
Main Methods
- Systematic examination of PPF effects on six plant species from three invasive/native congeneric pairs.
- Analysis of biomass changes under conspecific litter treatments.
- Mantel tests to assess correlations between PPF strength and plant functional traits or phylogenetic distance.
Main Results
- Significant conspecific negative feedback observed in four of six species, reducing biomass by 6.2-12.7%.
- PPF intensity was comparable between invasive (I = -0.05) and native (I = -0.04) species.
- No correlation found between PPF strength and plant traits or phylogenetic distance, unlike soil feedback systems.
Conclusions
- PPF is a universal mechanism across multiple plant families, not just Asteraceae.
- Microbial-mediated advantages may contribute to the success of invasive plants.
- Future research should use metagenomic and metabolomic approaches to understand PPF dynamics.
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