Exotic Spartina alterniflora Loisel. Invasion significantly shifts soil bacterial communities with the successional gradient of saltmarsh in eastern China

Yang, Wen; Cai, Andong; Wang, Jinsong; Luo, Yiqi; Cheng, Xiaoli; An, Shuqing

doi:10.1007/s11104-020-04470-y

Cited by 41 publications

(40 citation statements)

References 81 publications

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“…Previous studies have documented that the availability of soil nutrient is the dominating factor that impacts the F:B PLFA ratio 32 . The responses of soil bacterial and fungal communities to the availability of soil nutrient can entirely differ 32 , 41 – 43 . Generally, soil bacterial communities with higher organic matter inputs, combined with plentiful available nutrients are more remarkably abundant compared with fungal communities 32 , 43 .…”

Section: Discussionmentioning

confidence: 99%

“…The responses of soil bacterial and fungal communities to the availability of soil nutrient can entirely differ 32 , 41 – 43 . Generally, soil bacterial communities with higher organic matter inputs, combined with plentiful available nutrients are more remarkably abundant compared with fungal communities 32 , 43 . Soil fungal communities have the capacity to degrade more recalcitrant organic materials and prefer nutrient-poor environments 41 , 42 .…”

Section: Discussionmentioning

confidence: 99%

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Coastal reclamation alters soil microbial communities following different land use patterns in the Eastern coastal zone of China

Yang

Jeelani

Cai

et al. 2021

Sci Rep

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Coastal reclamation seriously disturbs coastal wetland ecosystems, while its influences on soil microbial communities remain unclear. In this study, we examined the impacts of coastal reclamation on soil microbial communities based on phospholipid fatty acids (PLFA) analysis following the conversion of Phragmites australis wetlands to different land use types. Coastal reclamation enhanced total soil microbial biomass and various species (i.e., gram-positive bacterial, actinomycete, saturated straight-chain, and branched PLFA) following the conversion of P. australis wetland to aquaculture pond, wheat, and oilseed rape fields. In contrast, it greatly decreased total soil microbial biomass and various species following the conversion of P. australis wetland to town construction land. Coastal reclamation reduced fungal:bacterial PLFA, monounsaturated:branched PLFA ratios, whereas increasing gram-positive:gram-negative PLFA ratio following the conversion of P. australis wetland to other land use types. Our study suggested that coastal reclamation shifted soil microbial communities by altering microbial biomass and community composition. These changes were driven primarily by variations in soil nutrient substrates and physiochemical properties. Changes in soil microbial communities following coastal reclamation impacted the decomposition and accumulation of soil carbon and nitrogen, with potential modification of carbon and nitrogen sinks in the ecosystems, with potential feedbacks in response to climate change.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Coastal reclamation alters soil microbial communities following different land use patterns in the Eastern coastal zone of China

Yang

Jeelani

Cai

et al. 2021

Sci Rep

Self Cite

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“…A two-way analysis of variance (ANOVA) was used to analyze the effects of plant invasion, wetland types, and their interactions on SOC and other soil physicochemical properties. One-way ANOVA was performed to analyze the differences in the effects of plant invasion on SOC and other soil physicochemical properties in the river and the constructed wetland, and it was also conducted when the interaction effects were significant in the two-way ANOVA (Nitao, 1989;Qi et al, 2019;Yang et al, 2020). Spearman correlation analyses were conducted in R (v4.0.1) to study the relationships between SOC and other soil physicochemical properties.…”

Section: Statistical Analysesmentioning

confidence: 99%

“…For example, the abundance of heterotrophic bacteria such as Bacteroidetes was increased with Spartina alterniflora invasion, which increased microbial respiration and resulted in the decrease of SOC (Song et al, 2020). Therefore, the indirect effect of plant invasion on SOC storage in wetlands is the key part of the influence mechanism of plant invasion on SOC (Zhang G. et al, 2019;Yang et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

The Invasion of Alternanthera philoxeroides Increased Soil Organic Carbon in a River and a Constructed Wetland With Different Mechanisms

Yang¹,

Li²,

Fang³

et al. 2020

Front. Ecol. Evol.

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“…Second, invasive species release novel phytochemicals into soils as root exudates or foliar excretions that can directly interact with soil microbes (Callaway et al 2008;Hierro and Callaway 2003;Morris et al 2016;Zhang et al 2009). While the impacts of invasive plants on soil microbial community structure and function have attracted a lot of attention recently (Keet et al 2021;Song et al 2015;Xiao et al 2014;Yang et al 2020;Zhang et al 2019), it is generally not well-understood what the contribution of these two main pathways are to changes in soil microbial communities under invasion.…”

Section: Introductionmentioning

confidence: 99%

Effects of Mikania Sesquiterpene Lactones on Soil Microbes

Yu¹,

Roux²,

Zhao³

et al. 2021

Preprint

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Background and aims Allelopathy is frequently invoked as being important for successful invasion by non-native plants. Yet, the effects of specific phytochemicals of invasive plants on soil microbes remain unexplored. Methods Here we used manipulative experiments and next generation sequencing (NGS) approaches to investigate how the sesquiterpene lactones (STLs) of invasive Mikania micrantha influence soil microbial communities and nutrients.Results We found Mikania STLs to significantly increase the regulation of soil microbial activity (i.e. increased CO2 concentrations). Using the specific STL, dihydromikanolide, we found available soil nutrients to increase in the presence of this phytochemical and that bacterial richness increased while fungal richness decreased. The presence of dihydromikanolide also increased the abundance of beneficial soil bacteria and fungi associated with nutrient cycling and supply, while simultaneously lowering pathogen abundance. Clustering analysis found bacterial functional groups, such as those involved in carbon, nitrogen, phosphorus, and sulfur metabolism, to be similar in experimentally-treated dihydromikanolide soils and Mikania-invaded soils collected from the field, but significantly higher than those in uninvaded soils. This suggests that M. micrantha can enhance certain bacterial functional groups via its phytochemicals. Soil fungi, on the other hand, appeared to be less sensitive to dihydromikanolide than bacteria. Conclusions We conclude Mikania STLs, and in particular dihydromikanolide, may be key factors in determining soil microbial structure and function and may contribute to the invasion success of the species. Our findings provided a new perspective for understanding the effects of invasive plants on soil microbial communities via their impacts through phytochemicals.

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Exotic Spartina alterniflora Loisel. Invasion significantly shifts soil bacterial communities with the successional gradient of saltmarsh in eastern China

Cited by 41 publications

References 81 publications

Coastal reclamation alters soil microbial communities following different land use patterns in the Eastern coastal zone of China

Coastal reclamation alters soil microbial communities following different land use patterns in the Eastern coastal zone of China

The Invasion of Alternanthera philoxeroides Increased Soil Organic Carbon in a River and a Constructed Wetland With Different Mechanisms

Effects of Mikania Sesquiterpene Lactones on Soil Microbes

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