A native parasitic plant and soil microorganisms facilitate a native plant co-occurrence with an invasive plant
| Autor: | Ayub M. O. Oduor, Junmin Li, Fei-Hai Yu, Ming Dong |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
0106 biological sciences
Parasitic plant Microorganism Parasitism 010603 evolutionary biology 01 natural sciences Invasive species 03 medical and health sciences soil microbes lcsh:QH540-549.5 Botany invasive plants Mikania micrantha Ecology Evolution Behavior and Systematics 030304 developmental biology Nature and Landscape Conservation Original Research 0303 health sciences biotic resistance Ecology biology fungi coexistence food and beverages Cuscuta campestris Native plant native plants biology.organism_classification Fungicide parasitic plants lcsh:Ecology |
| Zdroj: | Ecology and Evolution Ecology and Evolution, Vol 9, Iss 15, Pp 8652-8663 (2019) |
| ISSN: | 2045-7758 |
| Popis: | Invasive plants often interact with antagonists that include native parasitic plants and pathogenic soil microbes, which may reduce fitness of the invaders. However, to date, most of the studies on the ecological consequences of antagonistic interactions between invasive plants and the resident biota focused only on pairwise interactions. A full understanding of invasion dynamics requires studies that test the effects of multiple antagonists on fitness of invasive plants and co‐occurring native plants. Here, we used an invasive plant Mikania micrantha, a co‐occurring native plant Coix lacryma‐jobi, and a native holoparasitic plant Cuscuta campestris to test whether parasitism on M. micrantha interacts with soil fungi and bacteria to reduce fitness of the invader and promote growth of the co‐occurring native plant. In a factorial setup, M. micrantha and C. lacryma‐jobi were grown together in pots in the presence versus absence of parasitism on M. micrantha by C. campestris and in the presence versus absence of full complements of soil bacteria and fungi. Fungicide and bactericide were used to suppress soil fungi and bacteria, respectively. Findings show that heavy parasitism by C. campestris caused the greatest reduction in M. micrantha biomass when soil fungi and bacteria were suppressed. In contrast, the co‐occurring native plant C. lacryma‐jobi experienced the greatest increase in biomass when grown with heavily parasitized M. micrantha and in the presence of a full complement of soil fungi and bacteria. Taken together, our results suggest that selective parasitism on susceptible invasive plants by native parasitic plants and soil microorganisms may diminish competitive ability of invasive plants and facilitate native plant coexistence with invasive plants. |
| Databáze: | OpenAIRE |
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