Archaeal and bacterial communities assembly and co-occurrence networks in subtropical mangrove sediments under Spartina alterniflora invasion

Chen, Weidong; Wen, Donghui

doi:10.1186/s40793-021-00377-y

Cited by 80 publications

(60 citation statements)

References 74 publications

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“…Plant invasions are an important threat to local biodiversity conservation and ecosystem maintenance in the context of global change (Bradley et al, 2010; Theoharides & Dukes, 2007). In the last few decades, many studies have been conducted focusing on the effects of S. alterniflora invasion on plant communities and soil biotas in coastal wetlands (Chen & Wen, 2021; Yang et al, 2016). However, most of the previous studies focusing on soil communities have been carried out at a local scale.…”

Section: Discussionmentioning

confidence: 99%

Continental‐scale plant invasions reshuffle the soil microbiome of blue carbon ecosystems

Gao

Shi

et al. 2022

Global Change Biology

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Theory and experiments support that plant invasions largely impact aboveground biodiversity and function. Yet, much less is known on the influence of plant invasions on the structure and function of the soil microbiome of coastal wetlands, one of the largest major reservoirs of biodiversity and carbon on Earth. We studied the continental‐scale invasion of Spartina alterniflora across 2451 km of Chinese coastlines as our model‐system and found that S. alterniflora invasion can largely influence the soil microbiome (across six depths from 0 to 100 cm), compared with the most common microhabitat found before invasion (mudflats, Mud). In detail, S. alterniflora invasion was not only positively associated with bacterial richness but also resulted in important biotic homogenization of bacterial communities, suggesting that plant invasion can lead to important continental scale trade‐offs in the soil microbiome. We found that plant invasion changed the community composition of soil bacterial communities across the soil profile. Moreover, the bacterial communities associated with S. alterniflora invasions where less responsive to climatic changes than those in native Mud microhabitats, suggesting that these new microbial communities might become more dominant under climate change. Plant invasion also resulted in important reductions in the complexity and stability of microbial networks, decoupling the associations between microbes and carbon pools. Taken together, our results indicated that plant invasions can largely influence the microbiome of coastal wetlands at the scale of China, representing the first continental‐scale example on how plant invasions can reshuffle the soil microbiome, with consequences for the myriad of functions that they support.

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Section: Discussionmentioning

confidence: 99%

Continental‐scale plant invasions reshuffle the soil microbiome of blue carbon ecosystems

Gao

Shi

et al. 2022

Global Change Biology

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“…To reconcile these opposite perspectives, several underlying mechanisms have been proposed, such as non-linear responses and saturating effects ( Butler and O’Dwyer, 2018 ). Furthermore, how strongly and tightly individual bacteria link together also reflects community stability ( Chen and Wen, 2021 ; Price et al, 2021 ). However, the topological properties of interspecific interactions of bacterial communities under climate change remains unknown.…”

Section: Introductionmentioning

confidence: 99%

Convergency and Stability Responses of Bacterial Communities to Salinization in Arid and Semiarid Areas: Implications for Global Climate Change in Lake Ecosystems

Jiang

Shao

et al. 2022

Front. Microbiol.

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Climate change has given rise to salinization and nutrient enrichment in lake ecosystems of arid and semiarid areas, which have posed the bacterial communities not only into an ecotone in lake ecosystems but also into an assemblage of its own unique biomes. However, responses of bacterial communities to climate-related salinization and nutrient enrichment remain unclear. In September 2019, this study scrutinized the turnover of bacterial communities along gradients of increasing salinity and nutrient by a space-for-time substitution in Xinjiang Uyghur Autonomous Region, China. We find that salinization rather than nutrient enrichment primarily alters bacterial communities. The homogenous selection of salinization leads to convergent response of bacterial communities, which is revealed by the combination of a decreasing β-nearest taxon index (βNTI) and a pronounced negative correlation between niche breadth and salinity. Furthermore, interspecific interactions within bacterial communities significantly differed among distinct salinity levels. Specifically, mutualistic interactions showed an increase along the salinization. In contrast, topological parameters show hump-shaped curves (average degree and density) and sunken curves (modularity, density, and average path distance), the extremums of which all appear in the high-brackish environment, hinting that bacterial communities are comparatively stable at freshwater and brine environments but are unstable in moderately high-brackish lake.

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“…Based on the properties of the co-occurrence network, including the bacterial and fungal communities, the levels of most network indices were reduced more by T4 than T2 ( Figure 5 , Supplementary Table S3 ), suggesting that the relationships of microbial communities were altered, and the complexity and stability of the co-occurrence network were reduced because of the interspecific interactions in the intercrop mixture. The keystone taxa often had higher relative abundances and fewer core OTUs, which may significantly impact network stability (Chen and Wen, 2021 ). The interspecific interactions of peanut and sorghum, and wheat and faba bean were also helpful for maintaining the stability and ecological functions of microbial communities by restructuring the otherwise stable core microbiome.…”

Section: Discussionmentioning

confidence: 99%

“…The network indices and hubs in the G model were significantly higher than those in the T model, in which the levels of most network indices and hubs were enhanced by G4 ( Figure 5 , Supplementary Table S3 ). This result suggested that G4 possibly neutralized the relationships of keystone taxa of microbes and improved the network complexity and stability of the microbial community (Chen and Wen, 2021 ). As indicated by the fungal Bray-Curtis and weighted UniFrac distances, the fungal community homogenized from G2 to G4.…”

Section: Discussionmentioning

confidence: 99%

Plant Interaction Patterns Shape the Soil Microbial Community and Nutrient Cycling in Different Intercropping Scenarios of Aromatic Plant Species

et al. 2022

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Intercropping systems improve the soil nutrient cycle through microbial community activity and then land productivity. However, their interactions mechanism underlying that the mixed aromatic plant species intercropping regulate the soil microbiome and nutrient cycling on the perennial woody orchard is still uncovered. We designed treatments with 0, 1, and 3 aromatic plant species intercropped in two scenarios of clean tillage (T model, T1, T2, and T4) and natural grass (G model, G1, G2, and G4) in apple orchards, and investigated intercrops effects at the branch growing stage (BGS) and fruit development stage (FDS), respectively. Compared with T model, G model in FDS increased alpha diversity of bacterial community and Shannon index fungal community, the relative abundance of dominant taxa, such as Acidobacteria and Actinobacteria, and also the numbers of up and down-regulated OTUs, the most of indices of co-occurrence network in both bacterial and fungal community, and then improved invertase activity and available nitrogen content. Relative to G1, G2 and G4 reduced diversity bacterial community in FDS, the relative abundance of dominant taxa, the most of indices of co-occurrence network, and then improved soil invertase activity and total phosphorus content in soil. Moreover, Shannon index of fungal community, the altered number of OTUs and the most indices of co-occurrence network were higher in G4 than those in G2 in FDS. These changes above in FDS were more markedly than those in BGS, suggesting that chemical diversity of litter from mixed species of aromatic plants in natural grass scenario led to diversity, complexity, and stability of soil microbial community and then nutrient cycling. It provided a novel highlight and method to modulate biocenosis and then improve the soil nutrient cycling.

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Archaeal and bacterial communities assembly and co-occurrence networks in subtropical mangrove sediments under Spartina alterniflora invasion

Cited by 80 publications

References 74 publications

Continental‐scale plant invasions reshuffle the soil microbiome of blue carbon ecosystems

Continental‐scale plant invasions reshuffle the soil microbiome of blue carbon ecosystems

Convergency and Stability Responses of Bacterial Communities to Salinization in Arid and Semiarid Areas: Implications for Global Climate Change in Lake Ecosystems

Plant Interaction Patterns Shape the Soil Microbial Community and Nutrient Cycling in Different Intercropping Scenarios of Aromatic Plant Species

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