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A Systematic Review of Terrestrial Plant Invasion Mechanisms Mediated by Microbes and Restoration Implications

American Journal of Plant Sciences 2022年第2期13卷 205-222页

作者： K. Dawkins J. Mendonca O. Sutherland N. Esiobu Microbial Biotech Lab Florida Atlantic University Boca Raton USA

Terrestrial invasive plant species continue to wreak havoc on a global economic and ecological scale. With the advent of climate change and pending future catastrophes, the spread of resilient invasive plants will only increase exponentially. Here, the search continues for a better understanding of the below-ground microbially driven mechanisms involved in plant invasion where other above-ground mechanisms have been exhausted. Microbes govern the world around us and interact with every living and non-living facet of the world. To reinforce the important underpinnings of the role of microorganisms in plant invasion, a systematic review of recently published articles was undertaken. Using the ScienceDirect database, five (5) search queries were used to generate 1221 research articles. After a two-step reduction was made based on relevance of the articles, a final total of 59 articles were retrieved. An additional 18 relevant articles were also assessed through the PubMed database for analysis to account for other invasive plants. Thirty-seven (37) invasive species were investigated where soil physiochemical and microbial community structure changes were most prevalent (32% & 39% respectively) while enhanced mutualism, allelopathy and pathogen accumulation were reported less (16%, 10% & 3% respectively). In all invasive species assessed, the impact on plant invasion and inability of the native plants to compete was due to specific microbial associations of the invasive plant or disruption of the soil microbial community. This microbial community shift coincided with changes in physiochemical properties of the soil and the subsequent negative soil feedback for native plants. There is still an expanding potential for the use of biocontrol agents to aid restoration once the underpinnings of biotic resistance and enemy release are understood in a microbial and physiochemical context. The active and functional microbial community structure of the invasive plant rhizosphere

关键词： Invasive Plant Biotic Resistance Biocontrol Agents enemy release Restoration

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Increased competitive ability and herbivory tolerance in the invasive plant Sapium sebiferum

Increased competitive ability and herbivory tolerance in the...

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第一届全国生物入侵学术研讨会

作者： William E.Rogers Evan Siemann Department of Ecology and Evolutionary Biology Rice UniversityHoustonTX 77005USA Department of Rangeland Ecology and Management Texas A&M UniversityCollege StationTX 77843USA

The evolution of increased competitive ability(EICA) hypothesis predicts that release from natural enemies in the introduced range favors exotic plants evolving to have greater competitive ability and lower herbivore resistance than conspecifics from the native *** tested the EICA hypothesis in a common garden experiment with Sapium sebiferum in which seedlings from native(China) and invasive(USA) populations were grown in all pairwise combinations in the native range(China) in the presence of *** paired seedlings were from the same continent,shoot mass and leaf damage per seedling were significantly greater for plants from invasive populations than those from native *** more damage from herbivores,plants from invasive populations still outperformed those from native populations when they were grown *** competitive ability and higher herbivory damage of invasive populations relative to native populations of S. sebiferum support the EICA *** of biomass against percent leaf damage showed that plants from invasive populations tolerated herbivory more effectively than those from native *** results of this study suggest that *** has become a faster-growing,less herbivore-resistant and more herbivore-tolerant plant in the introduced *** implies that increased competitive ability of exotic plants may be associated with evolutionary changes in both resistance and tolerance to herbivory in the introduced *** these evolutionary changes has important implications for biological control strategies targeted at problematic invaders.

关键词： biological invasions biological control EICA hypothesis enemy release herbivore resistance herbivore tolerance

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