ArticleBotanical studies2017
Allelopathy and resource competition: the effects of Phragmites australis invasion in plant communities.
Article in Botanical studies, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed, 43 citations in OpenAlex.
- Allelopathic activity ofFrontiers in plant science · 2025Article
- The Specific Impacts of Allelopathy and Resource Competition fromPlants (Basel, Switzerland) · 2024Article
- Nitrogen deposition further increases Ambrosia trifida root exudate invasiveness under global warming.Environmental monitoring and assessment · 2023Article
- Article
- Nature of phytotoxic interference of alien weed 'Calyptocarpus vialis' against some crop plants.Environmental monitoring and assessment · 2021Article
- Invasive alien plant species: Their impact on environment, ecosystem services and human health.Ecological indicators · 2020Review
- Allelopathy: The Chemical Language of Plants.Progress in the chemistry of organic natural products · 2020Review
- Potential Phytotoxic Effect of Essential Oil of Non-Native SpeciesPlants (Basel, Switzerland) · 2019Article
- Main Allelochemicals from the Rhizosphere Soil ofMolecules (Basel, Switzerland) · 2018Article
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Authors and funding
2 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundPhragmites australis, a ubiquitous wetland plant, has been considered one of the most invasive species in the world. Allelopathy appears to be one of the invasion mechanisms, however, the effects could be masked by resource competition among target plants. The difficulty of distinguishing allelopathy from resource competition among plants has hindered investigations of the role of phytotoxic allelochemicals in plant communities. This has been addressed via experiments conducted in both the greenhouse and laboratory by growing associated plants, Melaleuca ericifolia, Rumex conglomeratus, and model plant, Lactuca sativa at varying densities with the allelopathic plant, P. australis, its litter and leachate of P. australis litter. This study investigated the potential interacting influences of allelopathy and resource competition on plant growth-density relationships.
resultsIn greenhouse, the root exudates mediated effects showed the strongest growth inhibition of M. ericifolia at high density whereas litter mediated results revealed increased growth at medium density treatments compared to low and high density. Again, laboratory experiments related to seed germination and seedling growth of L. sativa and R. conglomeratus exhibited phytotoxicity decreased showing positive growth as plant density increased and vice versa. Overall, the differential effects were observed among experiments but maximum individual plant biomass and some other positive effects on plant traits such as root and shoot length, chlorophyll content occurred at an intermediate density. This was attributed to the sharing of the available phytotoxin among plants at high densities which is compatible to density-dependent phytotoxicity model.
conclusionsThe results demonstrated that plant-plant interference is the combined effect of allelopathy and resource competition with many other factors but this experimental design, target-neighbor mixed-culture in combination of plant grown at varying densities with varying level of phytotoxins, mono-culture, can successfully separate allelopathic effects from competition.
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