Two Invasive Plants Alter Soil Microbial Community Composition in Serpentine Grasslands

Batten, Katharine M.; Scow, Kate M.; Davies, Kendi F.; Harrison, Susan

doi:10.1007/s10530-004-3856-8

Cited by 233 publications

(176 citation statements)

References 59 publications

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“…Plant invasions considerably reduce the diversity and abundance, or change the composition of aboveground and belowground communities, including soil microbial communities (Belnap and Phillips 2001;Yeates and Williams 2001;Broz et al 2007; Kappes et al 2007;Hejda et al 2009;Moroń et al 2009;Aguilera et al 2010;Lenda et al 2013). Indeed, invasive plants can change the composition or abundance of complex microbial communities and particular microbial groups, such as saprotrophic, mycorrhizal or pathogenic fungi, or ammonia-oxidizing bacteria (Kourtev et al 2002;Hawkes et al 2005;Batten et al 2006;Broz et al 2007;Niu et al 2007;Zhang et al 2009aZhang et al , 2009bMincheva et al 2014;Majewska et al 2015). Crucial ecosystem processes, for example, organic matter decomposition and mineralization or nitrogen fixation, are also modified by invaders (Rice et al 2004;Hawkes et al 2005;Liao et al 2008;Tharayil et al 2013;Mincheva et al 2014).…”

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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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: 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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“…Various factors may affect the structure of the rhizospheric microbial communities such as plant species (Batten et al, 2006), the growth stage of plants (Mougel et al 2006), and the distance from roots (Papavizas and Davey 1961). In this study, we explored the microeukaryotic community structures of the rice rhizosphere (roots and the rhizosphere soil) through denaturing gradient gel electrophoresis (DGGE) targeting the 18S rRNA gene.…”

Section: Introductionmentioning

confidence: 99%

Community structure of microeukaryotes in a rice rhizosphere revealed by DNA-based PCR-DGGE

Asiloglu

Honjo²,

Saka³

et al. 2015

Soil Science and Plant Nutrition

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Rice roots provide a specific habitat for microorganisms in the rhizosphere of a submerged field through supply of oxygen and organic matter. Many studies have focused on the microbial community in the rice rhizosphere, but less is still known about the microeukaryotic community structure of rice rhizosphere. This study explored the microeukaryotic community structure of a rice rhizosphere through denaturing gradient gel electrophoresis (DGGE) targeting 18S rRNA gene. The rice roots and the rhizosphere soil samples, which were collected from a field under rice-wheat rotation system, were separately analyzed. To characterize the rice rhizosphere-specific community, the bulk soil of rice field and the wheat rhizosphere samples were also examined. DGGE fingerprints showed that the microeukaryotic community of rice roots were distinct from the community of the bulk soil and showed a temporal shift with the growth stage. The rhizosphere soil community was distinct from the root and bulk soil communities, but this could be explained by that the root and bulk soil communities were shared in the rhizosphere. The rice rhizosphere community was also distinct from those in the wheat rhizosphere. Microeukaryotes that characterized the rice rhizosphere (roots and the rhizosphere soil) community could be affiliated to Polymyxa, flagellates, and oomycetes, which suggested that microeukaryotes with various ecological roles, e.g., parasites, bacterial grazers, and decomposers, inhabit the rice rhizosphere. The results showed that the rice root and its growth stages are key factors shaping the microeukaryotic community structure in the rhizosphere.

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“…In its new habitat, the invasive plant can alter the soil microbial community (Kourtev et al 2002, Batten et al 2006, Greipsson and DiTommaso 2006. This can be achieved directly through exuded allelochemicals decimating indigenous AMFs (Stinson et al 2006, Zhang et al 2007).…”

Section: Introductionmentioning

confidence: 99%

Arbuscular mycorrhizal colonisation of roots of grass species differing in invasiveness

2013

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Recent research indicates that the soil microbial community, particularly arbuscular mycorrhizal fungi (AMF), can influence plant invasion in several ways. We tested if 1) invasive species are colonised by AMF to a lower degree than resident native species, and 2) AMF colonisation of native plants is lower in a community inhabited by an invasive species than in an uninvaded resident community. The two tests were run in semiarid temperate grasslands on grass (Poaceae) species, and the frequency and intensity of mycorrhizal colonisation, and the proportion of arbuscules and vesicles in plant roots have been measured. In the first test, grasses representing three classes of invasiveness were included: invasive species, resident species becoming abundant upon disturbance, and non-invasive native species. Each class contained one C3 and one C4 species. The AMF colonisation of the invasive Calamagrostis epigejos and Cynodon dactylon was consistently lower than that of the non-invasive native Chrysopogon gryllus and Bromus inermis, and contained fewer arbuscules than the post-disturbance dominant resident grasses Bothriochloa ischaemum and Brachypodium pinnatum. The C3 and C4 grasses behaved alike despite their displaced phenologies in these habitats. The second test compared AMF colonisation for sand grassland dominant grasses Festuca vaginata and Stipa borysthenica in stands invaded by either C. epigejos or C. dactylon, and in the uninvaded natural community. Resident grasses showed lower degree of AMF colonisation in the invaded stand compared to the uninvaded natural community with F. vaginata responding so to both invaders, while S. borysthenica responding to C. dactylon only. These results indicate that invasive grasses supposedly less reliant on AMF symbionts have the capacity of altering the soil mycorrhizal community in such a way that resident native species can establish a considerably reduced extent of the beneficial AMF associations, hence their growth, reproduction and ultimately abundance may decline. Accumulating evidence suggests that such indirect influences of invasive alien plants on resident native species mediated by AMF or other members of the soil biota is 1 probably more the rule than the exception.Keywords: arbuscular mycorrhizal fungi (AMF), Calamagrostis epigejos, Cynodon dactylon, grasses, invasive plants, semiarid temperate grassland.Nomenclature: Tutin et al. (1964Tutin et al. ( -1993.Abbreviations: AMF -Arbuscular Mycorrhizal Fungi; a% -percentage arbuscule occurence of the AMF colonised root section; A% -percentage arbuscule occurence of the whole root; F% -frequency of root segments colonised by AMF; M% -intensity of mycorrhizal colonisation; v% -percentage vesicle occurence of the AMF colonised root section; V% -percentage vesicle occurence of the whole root;

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Two Invasive Plants Alter Soil Microbial Community Composition in Serpentine Grasslands

Cited by 233 publications

References 59 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

Community structure of microeukaryotes in a rice rhizosphere revealed by DNA-based PCR-DGGE

Arbuscular mycorrhizal colonisation of roots of grass species differing in invasiveness

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