Effects of leaf litter decomposition on bacterial community structure in the leaf litter of four dominant tree species in Mount Tai

Ying, 路颖 Lu; Kun, 李坤 Li; Qiang, 梁强 Liang; Chuanrong, 李传荣 Li; Caihong, 张彩虹 Zhang

doi:10.5846/stxb201806211365

Cited by 5 publications

(2 citation statements)

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“…In this study, Proteobacteria was consistently observed to be the dominant bacterial phyla in all samples. Moreover, as decomposition progressed, the dominant Proteobacteria (primarily Gammaproteobacteria) was gradually replaced by Actinobacteria, which is consistent with findings from other studies (Purahong et al, 2016;Lu et al, 2019). Proteobacteria can utilize nutrients produced by organic decomposition, such as ammonia (NH 3 ) and methane (CH 4 ), for growth requirements and metabolic processes (Lv et al, 2014).…”

Section: Bacterial Community Succession During Litter Decompositionsupporting

confidence: 88%

Bacterial Community Succession and Influencing Factors of Imperata Cylindrica Litter Decomposition in a Degraded Copper Tailings Dam of China

Jia

Liang

Guo

et al. 2021

Preprint

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Litter decomposition is a critical component of the ecological nutritional transformation process. It is particularly important to investigate characteristics and interactions of bacterial communities in litter decomposition in heavy metal polluted degrade areas, which will help clarify driving mechanisms of organic matter and nutrient cycling in mining areas that harbor contaminated soil. Imperata cylindrical was the dominant plant species in the degrade area investigated; thus, we selected this species as research object. Here we explore bacterial community characteristics and key microbial groups as well as driving factors of litter decomposition using in-situ litter decomposition experiments. The nutrient content of I. cylindrica decreased, while the litter pH status increased as decomposition progressed in one of the three sub-dams investigated (i.e., S516). Proteobacteria and Actinobacteriota were the dominant bacterial phyla during the different litter decomposition stages. Moreover, the role of Friedmanniella was critical in sustaining both structure and function of the bacterial community during the early decomposition stage. Quadrisphaera became the dominant species as litter decomposition progressed. Litter properties and enzyme activities both had significant effects on litter bacterial community characteristics, whose driving factors varied during different restoration stages. The bacterial community dynamics of litter were affected primarily by litter properties during the decomposition process. Furthermore, the most crucial factors that impacted bacterial litter structure were pH and copper content. Findings will help to deepen our understanding of litter decomposition mechanisms in degraded ecosystems, while also providing a scientific basis for improving effectiveness of material circulation and nutrient transformation in degrade ecosystems.

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Section: Bacterial Community Succession During Litter Decompositionsupporting

confidence: 88%

Bacterial Community Succession and Influencing Factors of Imperata Cylindrica Litter Decomposition in a Degraded Copper Tailings Dam of China

Jia

Liang

Guo

et al. 2021

Preprint

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“…and Robinia pseudoacacia L. forest and pure Q. acutissima forest was signi cantly and positively correlated with the diversity and richness indices of soil bacteria (Dong et al 2021). A study on litter decomposition of four dominant silvicultural tree species and its effect on the soil bacterial community structure in Taishan, China, found a correlation between the litter decomposition rate and the bacterial community diversity index, suggesting that high bacterial abundance and diversity promote litter decomposition (Lu et al 2019). As wood decay and decomposition advances, bacterial community diversity increases, as indicated by the alpha diversity indices.…”

Section: Discussionmentioning

confidence: 95%

Characteristics of Soil Bacterial Community in the Decomposition Process Inside and Outside Moso Bamboo Stumps

Liang

Huang

Zheng

et al. 2022

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Purpose: Soil bacteria comprise the largest number of soil microorganisms and play an important role in moso bamboo (Phyllostachys edulis) stump decay; however, the characteristics of soil bacterial communities inside and outside these stumps remain unclear. Methods: The characteristics of soil bacterial communities inside and outside Phyllostachys edulis bamboo stumps were analyzed under three different levels of decay using high-throughput sequencing technology. Results: The abundance of operational taxonomic units inside and outside the bamboo stumps increased as the decay progressed; Proteobacteria, Acidobacteria, Actinobacteria, Planctomycetes, and Verrucomicrobia were the most abundant phyla in the soil inside and outside the bamboo stumps. In the outside bamboo stumps, there was a very significant positive correlation of Acidobacteria and Planctomycetes with the decaying degree of bamboo stumps. At the class level, Alphaproteobacteria, Gammaproteobacteria, and Planctomycetacia were the most abundant bacteria in the bamboo stumps. Inside the stumps, the decaying degree of bamboo stumps was significantly positively correlated with Alphaproteobacteria and significantly negatively correlated with Gammaproteobacteria and Bacilli. Principal component analysis and the heat map analysis at the genus level indicated similarities among soil bacterial communities inside the moderately and severely decayed bamboo stumps and among the communities outside the mildly and moderately decayed bamboo stumps. Conclusion: Our results augment our understanding of the expeditious degradation process of bamboo stumps, and provide a theoretical basis and reference for microbiological research, sustainable bamboo stump operations, and degradation methods of bamboo forests.

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Characteristics of the soil bacterial community in the decomposition process inside and outside moso bamboo stumps

et al. 2022

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Purpose: Soil bacteria comprise the largest number of soil microorganisms and play an important role in moso bamboo (Phyllostachys edulis) stump decay; however, the characteristics of soil bacterial communities inside and outside these stumps remain unclear.Methods: The characteristics of soil bacterial communities inside and outside Phyllostachys edulis bamboo stumps were analyzed under three different levels of decay using high-throughput sequencing technology.Results: The abundance of operational taxonomic units inside and outside the bamboo stumps increased as the decay progressed; Proteobacteria, Acidobacteria, Actinobacteria, Planctomycetes, and Verrucomicrobia were the most abundant phyla in the soil inside and outside the bamboo stumps. In the outside bamboo stumps, there was a very signi cant positive correlation of Acidobacteria and Planctomycetes with the decaying degree of bamboo stumps. At the class level, Alphaproteobacteria, Gammaproteobacteria, and Planctomycetacia were the most abundant bacteria in the bamboo stumps. Inside the stumps, the decaying degree of bamboo stumps was signi cantly positively correlated with Alphaproteobacteria and signi cantly negatively correlated with Gammaproteobacteria and Bacilli. Principal component analysis and the heat map analysis at the genus level indicated similarities among soil bacterial communities inside the moderately and severely decayed bamboo stumps and among the communities outside the mildly and moderately decayed bamboo stumps.Conclusion: Our results augment our understanding of the expeditious degradation process of bamboo stumps, and provide a theoretical basis and reference for microbiological research, sustainable bamboo stump operations, and degradation methods of bamboo forests.

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Effects of leaf litter decomposition on bacterial community structure in the leaf litter of four dominant tree species in Mount Tai

Cited by 5 publications

References 0 publications

Bacterial Community Succession and Influencing Factors of Imperata Cylindrica Litter Decomposition in a Degraded Copper Tailings Dam of China

Bacterial Community Succession and Influencing Factors of Imperata Cylindrica Litter Decomposition in a Degraded Copper Tailings Dam of China

Characteristics of Soil Bacterial Community in the Decomposition Process Inside and Outside Moso Bamboo Stumps

Characteristics of the soil bacterial community in the decomposition process inside and outside moso bamboo stumps

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