Niche construction by the invasive Asian knotweeds (species complex Fallopia): impact on activity, abundance and community structure of denitrifiers and nitrifiers

Dassonville, Nicolas; Guillaumaud, Nadine; Piola, Florence; Meerts, Pierre Jacques; Poly, Franck

doi:10.1007/s10530-011-9954-5

Cited by 143 publications

(109 citation statements)

References 56 publications

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“…Mincheva et al (2014) discovered that R. japonica litter decomposed 3-4 times more slowly than the litter of native grassland species. Dassonville et al (2011) and Tharayil et al (2013) found that R. japonica, or other species of the Reynoutria genus, decreased enzyme activities related to N mineralization and/or denitrification, although the changes were season dependent (Tharayil et al 2013). Our soils invaded by R. japonica, which is a nonmycorrhizal plant, showed a reduced abundance and species richness of arbuscular mycorrhizal fungi (AMF) (Zubek et al unpublished).…”

Section: Discussionmentioning

confidence: 99%

“…These species are considered transformers (Tokarska-Guzik et al 2010), i.e., invasive species that Bchange the character, condition, form, or nature of ecosystems over a substantial area^ (Pyšek et al 2004); therefore, their effects on soil microbial processes and thus soil functioning (Nannipieri et al 2003) require detailed investigations. Previous research has been often conducted using either one or a small number of study sites, a single invasive species/ genus, and/or measuring few microbial properties, making generalizations on the impact of the invasion on soil functioning problematic Herr et al 2007;Scharfy et al 2009Scharfy et al , 2010Aguilera et al 2010;Dassonville et al 2011;Tharayil et al 2013;Mincheva et al 2014). To the best of our knowledge, data on the influence of R. laciniata invasion on soil microbial properties are lacking.…”

Section: Introductionmentioning

confidence: 99%

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Species-specific effects of plant invasions on activity, biomass, and composition of soil microbial communities

et al. 2016

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This study assessed the effects of Reynoutria japonica, Rudbeckia laciniata, and Solidago gigantea invading sites within and outside river valleys on activity, biomass, and composition of soil microbial communities. Microbial properties such as soil respiration, urease and arylsulfatase activities, microbial biomass (based on substrate-induced respiration, or SIR, and phospholipid fatty acids, or PLFA), and community composition (based on PLFA) were determined. R. japonica encroached on sites characterized by the lowest values of microbiological properties and R. laciniata on sites with the highest microbiological quality. The effect of invasion on soil microbial properties depended on the invasive plant species. R. japonica significantly decreased microbial biomass, determined by both SIR and total PLFA, urease activity, fungal PLFA, fungal:bacterial PLFA ratio, gram-negative bacterial PLFA, and soil respiration in comparison to soil under adjacent native plant communities. Microbial community composition also differed between soils under R. japonica and those under native plants. In contrast, R. laciniata and S. gigantea did not influence most microbial properties, though S. gigantea significantly increased fungal PLFA and R. laciniata and S. gigantea increased fungal:bacterial PLFA ratio. The effects of plant invasion on microbial properties were basically similar in soils located within and outside river valleys, probably because initially (i.e., before invasion) soils from the two locations were largely similar in terms of basic properties such as texture, moisture, pH, C:N ratio, and most microbial properties.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Species-specific effects of plant invasions on activity, biomass, and composition of soil microbial communities

et al. 2016

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“…Most interestingly, nitrogen resorption from senescing leaves appears to be less efficient in FS, although this result should be taken with caution as only one site was examined. The ability to efficiently recycle N from senescing leaves has been put forward as one of the key attributes of invasive knotweeds enabling them to outcompete the native flora (FJ: Dassonville et al 2011;FS: Urgenson et al 2009). In addition, low N concentrations in its litter result in very slow decomposition rates and N immobilization (Dassonville 2008).…”

Section: Discussionmentioning

confidence: 99%

“…In particular, very high stem elongation rate and the ability to quickly develop a dense canopy may impart a high competitive ability for light (Marigo and Pautou 1998). High nitrogen use efficiency may also be a key attribute of the complex (Dassonville et al 2011;Aguilera et al 2010).…”

Section: Introductionmentioning

confidence: 99%

Variation of growth and functional traits of invasive knotweeds (Fallopia spp.) in Belgium

et al. 2011

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Three invasive Fallopia taxa are present in Belgium: F. japonica (FJ), F. sachalinensis (FS) and their hybrid F. 9 bohemica (FB). FS is the least invasive of the three taxa. In this study, we compared the taxa, in sites where they co-occur, for differences in functional traits that might influence their competitive ability and invasiveness-shoot height and ramification, leaf size, specific leaf area (SLA) and foliar nitrogen (N) concentration. The three taxa exhibited similar growth kinetics and similar SLA. However, FS differed in its architecture and allocation of leaf area, having less ramified shoots and a steeper gradient of decreasing leaf size along the main shoot. Also, FS had greater foliar N and less efficient N resorption from senescing leaves. These traits values may result in lower competitive ability of FS for light and nitrogen. For the same traits, FB was generally intermediate between FS and FJ, but often closer to the latter. FB was more variable than FS and FJ, possibly due to larger genetic variation. SLA and ramification varied greatly amongst sites for all taxa, due in part to plastic response to contrasting light regimes. Variation in functional traits values may in part explain the variation in invasiveness amongst the members of the Fallopia complex in Belgium.

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“…This study presents the following hypotheses. First, R. typhina can increase soil pH [25][26] because of the preferences of plant N required [27][28] and/or the alkaline substances in the litters and/or root exudations of invasive species [28][29]. Second, soil pH decreased under N fertilization [6][7][8] due to the release of free H + via the nitrifi cation process under N fertilization [30][31].…”

Section: Introductionmentioning

confidence: 99%

Insights into the Effects of Simulated Nitrogen Deposition on Leaf Functional Traits of Rhus Typhina

Wang¹,

Xiao²,

Liu³

et al. 2016

Pol. J. Environ. Stud.

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The effects of anthropogenic nitrogen (N) deposition on successful plant invaders, particularly potential effects on their leaf functional traits, have stimulated considerable research interest. This study aims to gain insights into the leaf functional traits of the controversial invader Rhus typhina in the presence of a gradient of simulated N deposition (control, 0 g L ). Soil pH is decreased under the growth of R. typhina. The soil acidifi cation mediated by R. typhina may be due to the positive effects of R. typhina on soil ammonium concentration and negative effects on soil nitrate concentration. Soil pH decreased under N fertilization due to the release of free H + via the nitrifi cation process.Leaf width, leaf chlorophyll and N concentrations, SLA, and single leaf wet weight of R. typhina increased in the presence of all N fertilizers; medium N and high N fertilization also increased leaf length and leaf thickness of R. typhina due to the fertilizing effects of the addition of exogenous N on R. typhina growth. Thus, R. typhina leaves may possess higher resource capture ability as well as higher relative growth rate by reducing material investment per unit area under exogenous N fertilization. Meanwhile, medium N fertilization exerts stronger fertilizing effects on leaf length, leaf width, leaf chlorophyll and N concentrations, single leaf wet weight, and leaf thickness of R. typhina than those of high N fertilization. This is possibly because excess N fertilization could drive some unexpected reverse phenomena on leaf growth of R. typhina. Thus, leaf growth of R. typhina may be presumably attenuated with increasing amounts of anthropogenic N deposited into ecosystems in the future, and thereby pose pronounced effects on its subsequent further invasion.

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Niche construction by the invasive Asian knotweeds (species complex Fallopia): impact on activity, abundance and community structure of denitrifiers and nitrifiers

Cited by 143 publications

References 56 publications

Species-specific effects of plant invasions on activity, biomass, and composition of soil microbial communities

Species-specific effects of plant invasions on activity, biomass, and composition of soil microbial communities

Variation of growth and functional traits of invasive knotweeds (Fallopia spp.) in Belgium

Insights into the Effects of Simulated Nitrogen Deposition on Leaf Functional Traits of Rhus Typhina

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