Plant litter decomposition in wetlands is closely associated with phyllospheric fungi as revealed by microbial community dynamics and co-occurrence network

Zhan, Peng; Liu, Yunshuo; Hao-cai, Wang; Wang, Chenli; Xia, Min; Wang, Na; Cui, Wanzhe; Xiao, Derong; Wang, Hang

doi:10.1016/j.scitotenv.2020.142194

Cited by 54 publications

(18 citation statements)

References 52 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In wetlands, Rozellomycota were found to even exceed the portion of Ascomycetes in the microbiome at progressed stages of litter decomposition. This phylum was also observed in heavy-metal-contaminated water samples and paddy soil [53][54][55].…”

Section: Discussionmentioning

confidence: 62%

Biomineralization by Extremely Halophilic and Metal-Tolerant Community Members from a Sulfate-Dominated Metal-Rich Environment

et al. 2021

View full text Add to dashboard Cite

The adaptation to adverse environmental conditions can lead to adapted microbial communities that may be screened for mechanisms involved in halophily and, in this case, metal tolerance. At a former uranium mining and milling site in Seelingstädt, Germany, microbial communities from surface waters and sediment soils were screened for isolates surviving high salt and metal concentrations. The high salt contents consisted mainly of chloride and sulfate, both in soil and riverbed sediment samples, accompanied by high metal loads with presence of cesium and strontium. The community structure was dominated by Chloroflexi, Proteobacteria and Acidobacteriota, while only at the highest contaminations did Firmicutes and Desulfobacterota reach appreciable percentages in the DNA-based community analysis. The extreme conditions providing high stress were mirrored by low numbers of cultivable strains. Thirty-four extremely halotolerant bacteria (23 Bacillus sp. and another 4 Bacillales, 5 Actinobacteria, and 1 Gamma-Proteobacterium) surviving 25 to 100 mM SrCl2, CsCl, and Cs2SO4 were further analyzed. Mineral formation of strontium- or cesium-struvite could be observed, reducing bioavailability and thereby constituting the dominant metal and salt resistance strategy in this environment.

show abstract

Section: Discussionmentioning

confidence: 62%

Biomineralization by Extremely Halophilic and Metal-Tolerant Community Members from a Sulfate-Dominated Metal-Rich Environment

et al. 2021

View full text Add to dashboard Cite

show abstract

“…This is consistent with the changes observed in fungal community composition. This consistency shows that the interactive ability of more abundant fungi is higher within fungal communities (Zhan et al, 2021). However, it must be noted that the key fungi within our network analysis are based on statistical analysis and therefore do not represent realworld relationships among fungal communities, which remain to be verified (Freilich et al, 2018).…”

Section: Microbial Interactions During Litter Decompositionmentioning

confidence: 76%

Litter Decomposition of Imperata cylindrica in a Copper Tailing Areas With Different Restoration History: Fungal Community Dynamics and Driving Factors

et al. 2021

View full text Add to dashboard Cite

Microorganisms drive litter decomposition while maintaining the chemical cycle of ecosystems. We used the dominant vegetation (Imperata cylindrica) in the mining area selected for this study for this experiment to explore fungal community characteristics, key fungal groups, and their associative driving factors during I. cylindrica litter decomposition. Maximum litter C/N values occurred 100days after the commencement of the decomposition experiment during all different recovery years in this copper tailings area. Heavy metals in litter [copper (Cu), zinc (Zn), plumbum (Pb), and cadmium (Cd)] accumulated gradually with decomposition. The dominant fungal phyla observed in the community were Ascomycota and Basidiomycota, while the classes Sordariomycetes and Eurotiomycetes significantly increased as litter decomposition progressed. Degrees of connectivity and interaction between fungal communities were highest during the early litter decomposition stage. Sordariomycetes, Dothideomycetes, and Leotiomycetes all played critical roles in maintaining fungal community relationships. The effect of physicochemical properties and enzyme activities in I. cylindrica litter was significant on the dominant fungi, while driving factors that affected fungal communities differed over different recovery stages. Total nitrogen (TN), heavy metals, pH, and enzyme activities in the little were significantly correlated with fungal community composition. Litter properties throughout the litter decomposition process mainly affected the dynamics of the fungal community structure. The main environmental factors that affected fungal community structure were copper content and pH. Dichotomopilus, Trichoderma, Knufia, Phialophora, Oxyporus, and Monocillium, which all played important roles in litter decomposition, positively correlated with heavy metals, sucrase, and catalase. Finally, results from this study will help us better clarify litter decomposition mechanisms in degraded ecosystems as well as provide a scientific basis for improving species cycling and nutrient transformation efficiency in mining ecosystems.

show abstract

“…In addition, the middle farming phase had fewer edges and lower node connectivities compared with the initial and final farming phases, indicating some losses of co-occurrence among the bacterial taxa. The percentage of negative links was much higher during the initial than the other farming phases, indicating that the initial farming phase had more antagonistic relationships (Zhan et al, 2020).…”

Section: F I G U R Ementioning

confidence: 92%

Successional patterns of bacterial communities and their functions in shrimp aquaculture pond water across farming phases

Zhan

Tang

et al. 2021

Aquac Res

Self Cite

View full text Add to dashboard Cite

Microorganisms, as integral components of food webs, play key roles in regulating the aquatic environment in shrimp farming. However, the abundance and functional diversity of bacteria in shrimp aquaculture ponds and the factors shaping their distribution patterns remain largely unknown. We investigated the temporal and depth changes of the bacterial communities in water columns of shrimp ponds in the Min River estuary, southeastern China. Proteobacteria was the most dominant phylum throughout the aquaculture period. The differences in the pattern of variation in bacterial communities among three water column depths were minimal. As a potential pathogen, the genus Vibrio gradually increased in relative abundance from the initial to the final farming phase. Network analysis indicated that the degrees of species segregation were higher, and the average path lengths shorter, during the middle and final farming phases compared with the initial farming phase. This suggested that environmental stimuli are more efficient at reaching the whole network and are potentially more susceptible to external disturbance during the latter two phases. Anaerobic bacteria were most abundant during the middle and final farming phases. Salinity and chlorophyll a concentration were the variables most strongly correlated with the bacterial communities during all phases, and abiotic selection accounted for most of the total variation during the three farming phases. These findings contribute to a deeper understanding of the temporal changes in the composition and functional diversity of bacterial communities in coastal shrimp pond water columns and have implications for the effective and sustainable management of shrimp aquaculture systems.

show abstract

Plant litter decomposition in wetlands is closely associated with phyllospheric fungi as revealed by microbial community dynamics and co-occurrence network

Cited by 54 publications

References 52 publications

Biomineralization by Extremely Halophilic and Metal-Tolerant Community Members from a Sulfate-Dominated Metal-Rich Environment

Biomineralization by Extremely Halophilic and Metal-Tolerant Community Members from a Sulfate-Dominated Metal-Rich Environment

Litter Decomposition of Imperata cylindrica in a Copper Tailing Areas With Different Restoration History: Fungal Community Dynamics and Driving Factors

Successional patterns of bacterial communities and their functions in shrimp aquaculture pond water across farming phases

Contact Info

Product

Resources

About