The auto fluorescence characteristics, specific activity, and microbial community structure in batch tests of mono-chicken manure digestion

Song, Liuying; Song, Yong Su; Li, Dunjie; Liu, Rutao; Niu, Qigui

doi:10.1016/j.wasman.2018.11.002

Cited by 48 publications

(13 citation statements)

References 49 publications

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“…Therefore, the high number of ASVs unused in the Tax4Fun2 prediction was probably caused by the lack of reference genomes [67]. Our functional profiling showed that the relative abundance of genes involved in carbon, nitrogen, and sulfur cycles ranged from 0.019% to 0.062%, which is close to the functional abundance of bacteria in mangrove sediments (0.01~0.07%) [60] and microbial communities in sludge (0.009~0.042%) [68]. The reason for the low abundance of the genes associated with element cycling is that most function predictions are performed in cellular biological processes (such as amino acid metabolism, carbohydrate metabolism, protein synthesis, etc.…”

Section: Discussionmentioning

confidence: 68%

Seasonal Dynamics of Bathyarchaeota-Dominated Benthic Archaeal Communities Associated with Seagrass (Zostera japonica) Meadows

Liu

Zhang

Song

et al. 2021

JMSE

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Little is known about the seasonal dynamic of archaeal communities and their potential ecological functions in temperate seagrass ecosystems. In this study, seasonal changes in diversity, community structure, and potential metabolic functions of benthic archaea in surface sediments of two seagrass meadows along the northern Bohai Sea in China were investigated using Miseq sequencing of the 16S rRNA gene and Tax4Fun2 functional prediction. Overall, Crenarchaeota (mainly Bathy-15, Bathy-8, and Bathy-6) dominated, followed by Thermoplasmatota, Asgardarchaeota, and Halobacterota, in terms of alpha diversities and relative abundance. Significant seasonal changes in the entire archaeal community structure were observed. The major phyla Methanobacteria, Nitrosopumilales, and genus Methanolobus had higher proportions in spring, while MBG-D and Bathyarchaeota were more abundant in summer and autumn, respectively. Alpha diversities (Shannon and Simpson) were the highest in summer and the lowest in autumn (ANOVA test, p < 0.05). Salinity, total organic carbon, and total organic nitrogen were the most significant factors influencing the entire archaeal community. Higher cellulose and hemicellulose degradation potentials occurred in summer, while methane metabolism potentials were higher in winter. This study indicated that season had strong effects in modulating benthic archaeal diversity and functional potentials in the temperate seagrass ecosystems.

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Section: Discussionmentioning

confidence: 68%

Seasonal Dynamics of Bathyarchaeota-Dominated Benthic Archaeal Communities Associated with Seagrass (Zostera japonica) Meadows

Liu

Zhang

Song

et al. 2021

JMSE

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“…It is indicated that the severe humification was occurred and the system of reactor was unstable. Fortunately, figure 2b showed that only peak A and peak B were detected in the fluorescence spectrum of Phase Ⅱ, and they represented soluble microbial byproductlike materials and the component of tryptophan-like protein, respectively [7], indicating that the community structure of microorganisms in reactor achieved a stable state. After Phase Ⅱ, with the increase of PHE concentration, the fluorescence intensity (FI) of SMP and tryptophan-like protein gradually increased.…”

Section: Dom Characteristics Of Effluent In Different Phasesmentioning

confidence: 99%

“…Three-dimensional excitation-emission matrix (3D-EEM) fluorescence spectroscopy of effluent in different phases was obtained, as shown in figure 2. The information from the EEM could provide a high value of reference for the metabolism of microorganisms during anaerobic digestion process [7], as it usually showed the relevant characteristics of dissolved organic matter (DOM) in effluent samples comprehensively, such as the components and source of organics. The locations of the DOM fluorescence peaks were identified based on excitation/emission (Ex/Em) (figure 2a), which can be summarized into five peaks, as followed: Peak A: Ex/Em=275-285/325-350 nm; Peak B: Ex/Em=225-240/320-340 nm; Peak C: Ex/Em=275-280/445-450 nm; Peak D: Ex/Em=320-340/410-430 nm; Peak E: Ex/Em=380-400/450-470 nm.…”

Section: Dom Characteristics Of Effluent In Different Phasesmentioning

confidence: 99%

Stress-Responses of Performance and Microbial Community in Anaerobic Digestion System Under Long-Term Enrichment of Phenanthrene

Shi

et al. 2021

Advances in Transdisciplinary Engineering

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The expanded granular sludge blanket reactor (EGSB) was operated for 198 days to study the long-term effects of phenanthrene (PHE) enrichment on system performance and microbial community. The results showed that the PHE was significantly enriched in the reactor. The final PHE concentration in effluent and sludge reached to 1.764±0.05 mg/L and 12.52±0.42 mg/gTS, respectively. While the average daily methane production was decreased by 5.0%-9.8% under long-term PHE exposure. The 3D-EEM of effluent indicated that PHE stimulated the microbial metabolism with the higher intensity of soluble microbial byproduct-like materials (SMP) and proteins. Moreover, the removal efficiency of soluble chemical oxygen demand (SCOD) and NH4+-N gradually diminished with the enrichment of PHE. PHE shaped the microbial community, and the predominant fermentative bacteria (Mesotoga) was severely inhibited. Contrarily, the bacteria (Syntrophorhabdus, Acinetobacter, Desulfovibrio, Desulfomicrobium) involved in PHE-degradation was enriched at end of Phase V. In addition, the relative abundance (RA) of hydrotrophic methanogens (Methanofastidiosum, Methanolinea, Methanobacterium, Methanomassiliicoccus) increased by 0.96-fold with the long-term enrichment of PHE, while the RA of acetoclastic Methanosaeta obviously decreased.

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“…A major part of anaerobic digestion (AD) depends on microbial activity; factors such as syntrophic relationships between microbes and delicate balances among them are considered for this process to function effectively. 24 Anaerobic digestion generally consists of four consecutive stages of bio methanogenesis, namely hydrolysis, acidogenesis, acetogenesis and methanogenesis; the first three stages are mediated by bacteria and the last stage is accomplished by archaea. 25…”

Section: The Microbial Functions In the Anaerobic Digestion Processmentioning

confidence: 99%

Microbial Activity during Composting and Plant Growth Impact: A Review

Rath¹,

Das²,

Pattanaik³

2022

J. Pure Appl. Microbiol.

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Replacing harmful chemical pesticides with compost extracts is steadily gaining attention, offering an effective way for plant growth enhancement and disease management. Food waste has been a major issue globally due to its negative effects on the environment and human health. The methane and other harmful organisms released from the untreated waste have been identified as causes of this issue. Soil bacteria impart a very important role in biogeochemical cycles. The interactions between plants and bacteria in the rhizosphere are some of the factors that determine the health and fertility of the soil. Free-living soil bacteria are known to promote plant growth through colonizing the plant root. PGPR (Plant Growth Promoting Rhizobacteria) inoculants in compost are being commercialized as they help in the improvement of crop growth yield and provide safeguard and resistance to crops from disease. Our focus is to understand the mechanism of this natural, wet waste recycling process and implementation of a sustainable operative adaptation with microbial association to ameliorate the waste recycling system.

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The auto fluorescence characteristics, specific activity, and microbial community structure in batch tests of mono-chicken manure digestion

Cited by 48 publications

References 49 publications

Seasonal Dynamics of Bathyarchaeota-Dominated Benthic Archaeal Communities Associated with Seagrass (Zostera japonica) Meadows

Seasonal Dynamics of Bathyarchaeota-Dominated Benthic Archaeal Communities Associated with Seagrass (Zostera japonica) Meadows

Stress-Responses of Performance and Microbial Community in Anaerobic Digestion System Under Long-Term Enrichment of Phenanthrene

Microbial Activity during Composting and Plant Growth Impact: A Review

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