Role and influence of soil microbial communities on plant invasion

Ravi, Ravichandran Koshila; Muthukumar, Thangavelu

doi:10.12775/eq.2017.024

Cited by 10 publications

(7 citation statements)

References 148 publications

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“…It can do so through enhancing or suppressing germination, have positive or negative feedback systems, engage in symbiotic interactions or alternatively influence soil nutrient cycles and soil enzyme concentrations [139][140][141]. Numerous hypotheses have been put forward to explain or understand the role of microorganisms in the success of invasive plant species [141,142] (Table 1). However, very little research has been undertaken on the role of microorganisms on the success of invasive plants into the fynbos biome.…”

Section: The Role Of Microorganisms In Invasionmentioning

confidence: 99%

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Microbial Communities in the Fynbos Region of South Africa: What Happens during Woody Alien Plant Invasions

2020

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The Cape Floristic Region (CFR) is globally known for its plant biodiversity, and its flora is commonly referred to as fynbos. At the same time, this area is under severe pressure from urbanization, agricultural expansion and the threat of invasive alien plants. Acacia, Eucalyptus and Pinus are the common invasive alien plants found across the biome and considerable time, effort and resources are put into the removal of invasive alien plants and the rehabilitation of native vegetation. Several studies have shown that invasion not only affects the composition of plant species, but also has a profound effect on the soil chemistry and microbial populations. Over the last few years, a number of studies have shown that the microbial populations of the CFR are unique to the area, and harbour many endemic species. The extent of the role they play in the invasion process is, however, still unclear. This review aims to provide an insight into the current knowledge on the different microbial populations from this system, and speculate what their role might be during invasion. More importantly, it places a spotlight on the lack of information about this process.

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Section: The Role Of Microorganisms In Invasionmentioning

confidence: 99%

“…This may be true for Eucalyptus and Pinus species in the fynbos, but the evidence is still anecdotal. [141,142]).…”

Section: The Role Of Microorganisms In Invasionmentioning

confidence: 99%

Microbial Communities in the Fynbos Region of South Africa: What Happens during Woody Alien Plant Invasions

2020

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“…As a result, plant expansion affects soil microbial community structure (Stefanowicz et al, 2019; Yang et al, 2016), composition (Batten et al, 2006), and functions (Souza‐Alonso et al, 2014; Zhao et al, 2019). These changes also drive plant nutrient uptake, thus increasing their competitiveness (Ravichandran & Thangavelu, 2017; Sun et al, 2019). Poisonous weeds such as S. chamaejasme can also interact with soil microbes to promote positive feedback for their expansion (Cheng et al, 2021), especially in rhizosphere soil (Chen et al, 2002), and its rhizosphere maintains the complex interactions between soil, microorganisms, and roots (Reinhold‐Hurek et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Response of bacterial community characteristics in the rhizosphere soil of Stellera chamaejasme L. to its expansion on the Qinghai‐Tibet Plateau

Sun

et al. 2023

Land Degrad Dev

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Qinghai‐Tibet Plateau is facing a serious environmental and ecological problem of Meadow degradation. Toxic weed invasion is a typical characteristic of grassland degradation. Soil microbial community composition is sensitive to environmental changes; however, the effects of poisonous weed expansion on soil bacterial communities are unclear. Here, we investigated the effects of Stellera chamaejasme L. expansion on the rhizosphere soil bacterial community structure and function using high‐throughput sequencing. The results showed that expansion of Stellera chamaejasme L. changed soil nitrogen(e.g., total nitrogen [TN, −39.02%], available nitrogen [AN, −32.95%]) and other soil nutrients. Redundancy analysis (RDA) and Variance partitioning analysis (VPA) showed that soil nutrients changed, leading to significant changes in the bacterial community structure. The expansion of Stellera chamaejasme L significantly reduced its rhizosphere bacterial alpha diversity, and the beta diversity had significant differences (p < 0.05). Principal coordinates analysis (PCoA) and analysis of similarity (ANOSIM) indicated that the expansion caused significant variations in the rhizosphere bacterial community (R = 0.7037, p < 0.01). The linear discriminant analysis (LDA) effect size (LEfSe) analysis identified 23 biomarkers, most of which were Proteobacteria, indicating that bacteria involved in soil nutrient cycling were better able to survive in the alpine grassland. The Biolog EcoPlate method was used to determine the soil microbial metabolic capacity in different S. chamaejasme expansions. The result showed that heavy expansion had higher carbon source usage ability and microbial diversity index values. Furthermore, it was also found that heavy expansion improved the usage rate of amino acid carbon sources. Tax4Fun prediction analysis further indicated that carbohydrate metabolism, amino acid metabolism, and membrane transport were central metabolic pathways of rhizosphere soil bacteria. Our study found that Stellera chamaejasme L. changed rhizosphere soil nutrient and bacterial community structure during expansion and helped it tolerate harsh conditions by enriching bacterial communities actively involved in carbon and nitrogen metabolism and promoting plant growth. These findings provided evidence to propose effective restoration measures for poisonous grassland degradation.

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“…Soil microbes play an important role in alien plant invasion. Invasive plants can modify native soil microbial community; in turn, changes in soil microbes can result in a positive or negative effect on the competition between native and invasive plants (Ravichandran & Thangavelu, 2017). Therefore, considering these effects is beneficial to predict the invasion mechanism.…”

Section: Introductionmentioning

confidence: 99%

Effects of Spartina alterniflora invasion on the community structure and diversity of wetland soil bacteria in the Yellow River Delta

Shang

Liu

et al. 2022

Ecology and Evolution

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The exotic plant Spartina alterniflora is expanding rapidly along China's coast regions, seriously threatening native ecosystems. Soil bacteria are important for biogeochemical cycles, including those of carbon, nitrogen, and sulfur, in wetland ecosystems. There is growing evidence that microorganisms are important in case of plant invasion. In the present study, we studied the interlacing area of S. alterniflora and Suaeda heteroptera, selected soil of invaded and non‐invaded regions and explored the effect of the composition and diversity of bacterial communities in coastal wetlands. The bacterial community composition of invasive and noninvasive areas was subjected to high‐throughput sequencing. In the five areas tested, the main bacterial phyla were Proteobacteria, Bacteroides, and Acidobacteria; the richness of the bacterial community in the soil increased after S. alterniflora invasion, most changes occurred at the genus level. The relative abundances of Desulfobulbus and Sulfurovum were higher in invasive areas than in noninvaded areas. PCA, RDA, and LEfSe analyses found that the S. alterniflora invasion significantly influenced the bacterial community and physicochemical properties of wetland soil. In conclusion, soil microbial community composition was tightly associated with S. alterniflora invasion. This study provide an important scientific basis for further research on the invasion mechanism of S. alterniflora.

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Role and influence of soil microbial communities on plant invasion

Cited by 10 publications

References 148 publications

Microbial Communities in the Fynbos Region of South Africa: What Happens during Woody Alien Plant Invasions

Microbial Communities in the Fynbos Region of South Africa: What Happens during Woody Alien Plant Invasions

Response of bacterial community characteristics in the rhizosphere soil of Stellera chamaejasme L. to its expansion on the Qinghai‐Tibet Plateau

Effects of Spartina alterniflora invasion on the community structure and diversity of wetland soil bacteria in the Yellow River Delta

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