Invasive plant Reynoutria japonica produces large amounts of phenolic compounds and reduces the biomass but not activity of soil microbial communities

Stefanowicz, Anna M.; Kapusta, Paweł; Stanek, Małgorzata; Frąc, Magdalena; Oszust, Karolina; Woch, Marcin W.; Zubek, Szymon

doi:10.1016/j.scitotenv.2021.145439

Cited by 28 publications

(26 citation statements)

References 61 publications

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“…In general, TPC, emodin, and resveratrol in plant tissues in our study were similar to or slightly lower than the reported values by Stefanowicz et al. (2021). A reason for these observed differences could be related to growing conditions (Kovárová et al., 2010), for example, natural versus artificial soil (Parepa & Bossdorf, 2016), plant age as well as the absence of competitive plants (Cantarel et al., 2020).…”

Section: Discussionsupporting

confidence: 88%

“…Both leaves and roots of Fallopia spp. were reported to be enriched in polyphenols (Stefanowicz et al., 2021), a substance group associated with allelopathic effects (Abgrall et al., 2018) and known to shape soil biogeochemical processes in terrestrial ecosystems (Hattenschwiler & Vitousek, 2000). Emodin (Fan et al., 2010; Frantik et al., 2013; Kovářová et al., 2011; Piola et al., 2013; Shan et al., 2008) and resveratrol (Chen et al., 2013; Kurita et al., 2014; Lachowicz & Oszmianski, 2019; Piola et al., 2013) are polyphenols that were frequently detected in Fallopia spp.…”

Section: Introductionmentioning

confidence: 99%

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Nitrification inhibition by polyphenols from invasive Fallopia japonica under copper stress

Girardi

Korz

Muñoz

et al. 2022

J. Plant Nutr. Soil Sci.

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Background:The invasive plant species Fallopia japonica is suspected to use polyphenols as a novel weapon to inhibit nitrification in soil. Both specific polyphenols and their entry pathways are yet to be determined. As plants may increase the production of polyphenols under copper (Cu) stress, an additive effect can be expected in contaminated (riparian) areas.Aims: This study aimed to identify the entry pathways of total and specific polyphenols in F. japonica and to test whether polyphenols inhibit nitrification with Cu contamination. Methods: Combining F. japonica and a Cu gradient in a 2-year mesocosm experiment, total polyphenol, emodin, and resveratrol concentrations were analyzed in the plant (roots, root exudates, vital and senescent leaves) and soil (rhizosphere, non-rooted soil) representing different entry pathways. We measured the potential nitrification rate (PNR) under stress caused by F. japonica and Cu as well as the response of PNR under resveratrol and emodin addition.Results: Emodin and resveratrol were detected in all plant tissues. Emodin concentrations significantly increased in senescent leaves under Cu stress, while no Cu effect was observed for resveratrol or total polyphenols. Resveratrol decreased the PNR. The stressors had neither a synergistic nor additive effect. Nitrification inhibition was lower in the rhizosphere compared to the non-rooted soil, suggesting that F. japonica reduced nitrate availability for co-occurring plants.Conclusions: Joint occurrence of F. japonica and Cu did not amplify the PNR inhibition over the individual effect. Our study emphasizes the effectiveness of F. japonica in inhibiting the PNR in invaded riparian ecosystems with potentially negative effects on biodiversity.

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Section: Discussionsupporting

confidence: 88%

Section: Introductionmentioning

confidence: 99%

Nitrification inhibition by polyphenols from invasive Fallopia japonica under copper stress

Girardi

Korz

Muñoz

et al. 2022

J. Plant Nutr. Soil Sci.

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“…Most of the soil variables we measured responded to the knotweed invasion; for example, nitrate available for plants strongly increased in the invaded sites in meadow habitats and C:N ratio was highest in invaded forest habitats. Similarly to Stefanowicz et al [40], our soils from forest-invaded plots had a much lower microbial biomass than soils from uninvaded plots. It is, therefore, possible that knotweed affects microbial biomass through competition for N due to the increase in soil C:N ratio, and/or through allelopathy on microbial communities, which may ultimately cascade through Collembola and Nematoda groups feeding on these microorganisms.…”

Section: Knotweed Effects On Native Plants and Soil Variablessupporting

confidence: 84%

Alien Invasive Plant Effect on Soil Fauna Is Habitat Dependent

2022

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Invasive alien plants often modify the structure of native plant communities, but their potential impact on soil communities is far less studied. In this study, we looked at the impact of invasive Asian knotweed (Reynoutria spp.) on two major soil mesofauna (Collembola) and microfauna (Nematodes) communities. We expected ingress of knotweed to differentially affect faunal groups depending on their trophic position, with the lower trophic levels being more impacted than the higher trophic groups according to the closer relationship to plants for basal trophic groups. Furthermore, we expected the knotweed impact to depend on habitat type (forest vs. meadow) with more pronounced changes in abundances of soil invertebrate in invaded meadows. Plant and soil invertebrates were sampled in six sites (three forest and three meadows) in northern France in both control and invaded plots. Our results showed that the presence of knotweed strongly reduced native plant species’ diversity and abundance. Soil fauna also responded to the invasion by Asian knotweed with different responses, as hypothesized, according to trophic position or life-forms. Furthermore, abundances of several collembolan life-forms were influenced by the interaction between the factors “Habitat” and “Knotweed”. This may explain the difficulty to easily generalize and predict the consequences of plant invasion on belowground diversity, although this is of crucial importance for alleviating negative consequences and costs of biological invasion.

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“…Moreover, emodin and artinemol may be effective antiviral drugs for the treatment of patients with COVID-19 [28]. Emodin can be found in the roots, leaves, bark and trunk of several plants, such as Senna alata (Cassia alata) [12], Rumex abyssinicus [13], Odontites serotina [14], Reynoutria japonica [15], Polygonum cuspidatum [16]. The source of emodin in the human diet is rhubarb [17].…”

Section: Pharmacological Effects Of Emodinmentioning

confidence: 99%

The Health Benefits of Emodin, a Natural Anthraquinone Derived from Rhubarb—A Summary Update

Stompor-Gorący

2021

IJMS

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Emodin (6-methyl-1,3,8-trihydroxyanthraquinone) is a naturally occurring anthraquinone derivative found in roots and leaves of various plants, fungi and lichens. For a long time it has been used in traditional Chinese medicine as an active ingredient in herbs. Among other sources, it is isolated from the rhubarb Rheum palmatum or tuber fleece-flower Polygonam multiflorum. Emodin has a wide range of biological activities, including diuretic, antibacterial, antiulcer, anti-inflammatory, anticancer and antinociceptive. According to the most recent studies, emodin acts as an antimalarial and antiallergic agent, and can also reverse resistance to chemotherapy. In the present work the potential therapeutic role of emodin in treatment of inflammatory diseases, cancers and microbial infections is analysed.

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Invasive plant Reynoutria japonica produces large amounts of phenolic compounds and reduces the biomass but not activity of soil microbial communities

Cited by 28 publications

References 61 publications

Nitrification inhibition by polyphenols from invasive Fallopia japonica under copper stress

Nitrification inhibition by polyphenols from invasive Fallopia japonica under copper stress

Alien Invasive Plant Effect on Soil Fauna Is Habitat Dependent

The Health Benefits of Emodin, a Natural Anthraquinone Derived from Rhubarb—A Summary Update

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