Microecological insight to fungal structure and key fungal communities regulating nitrogen transformation based on spatial heterogeneity during cow manure composting by multi-angle and multi-aspect analyses

Sun, Yu; Liu, Xinda; Sun, Lina; Men, Mengqi; Wang, Bo; Deng, Lei; Zhao, Liyan; Han, Yuhui; Jong, Chol; Bi, Ruixin; Zhao, Mingming; Li, Xiang; Liu, Wanying; Shi, Sheng‐Cai; Gai, Zhaoxue; Xu, Xiuhong

doi:10.1016/j.wasman.2022.02.013

Cited by 18 publications

(6 citation statements)

References 46 publications

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“…The fungal alpha diversity index values of T1 were significantly lower than that of T2 and T3 in the middle and late stages of composting, suggesting that regular water supplementation could improve the richness and diversity of fungi during sheep manure composting in the QTP, which promoted composting fermentation and significantly improved the compost quality. As shown in Figure 3A, Ascomycota and Basidiomycota were the dominant fungal phyla during composting, which is similar to the results of previous studies using other waste materials for composting [17,[36][37][38]. Ascomycota and Basidiomycota have been reported to produce special stress-resistant structures that resist adverse composting environments and play an important role as decomposers during composting [23].…”

Section: Fungal Diversity Analysis and Community Structuresupporting

confidence: 87%

Effects of Regular Water Replenishment on Enzyme Activities and Fungal Metabolic Function of Sheep Manure Composting on the Qinghai–Tibet Plateau

Cai

Cui

Zhang

et al. 2022

IJERPH

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The dry climate characteristics of the Qinghai–Tibet Plateau will seriously affect microbial metabolism during composting. In this study, we aimed to investigate the effects of regular water supplementation on the fungal and enzymatic activities of sheep manure composting in the Qinghai–Tibet Plateau. The experiment set up the treatments of water replenishment once every 7 days(T2) and 3.5 days (T3) days, and no water supplementation was used as the control (T1). The results showed that regular water supplementation increased the activities of various enzymes during composting, and the activities of protease, cellulase, peroxidase and polyphenol oxidase in T3 were higher than those in T2. Regular water supplementation increased the relative abundance of Remersonia and Mycothermus, which were significantly positively correlated with the germination index, and degradation of organic components. Regular water supplementation could enrich fungi carbohydrate, protein, and nucleotide metabolisms, and T3 had a better effect. A redundancy analysis showed that environmental factors could significantly affect the fungal community; among them, moisture content (76.9%, p = 0.002) was the greatest contributor. In conclusion, regular water supplementation can improve the key enzyme activities and fungal metabolic function of sheep manure composting, and water replenishment once every 3.5 days had the best effect.

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Section: Fungal Diversity Analysis and Community Structuresupporting

confidence: 87%

Effects of Regular Water Replenishment on Enzyme Activities and Fungal Metabolic Function of Sheep Manure Composting on the Qinghai–Tibet Plateau

Cai

Cui

Zhang

et al. 2022

IJERPH

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“…This resilience might be attributed to the establishment of a more functionally redundant community, where multiple species can perform similar ecological roles, thereby ensuring stability even when faced with environmental perturbations [56]. The observed dominance of the phylum Ascomycota in our composting treatments resonates with previous findings [57,58]. Ascomycota, known for its diverse metabolic capabilities and adaptability, often emerges as a dominant player in composting environments, contributing significantly to organic matter decomposition [59][60][61].…”

Section: Marasmius Tricolor 310b and Fungal Community Dynamicssupporting

confidence: 80%

The Impact of Marasmius tricolor 310b on the Degradation of Cellulose in Rapeseed Straw Composting

Wang,

Shi,

2023

Agronomy

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Composting, a vital process for organic waste management, hinges on intricate microbial dynamics. The role of specific microbial inoculants, such as fungi, in shaping these dynamics remains an area of keen interest. This study aimed to elucidate the impact of the fungal inoculant Marasmius tricolor 310b on composting dynamics, with a focus on temperature variations and the degradation of lignocellulosic components. We conducted a comprehensive composting experiment with four treatments: pure rapeseed straw, rapeseed straw with Marasmius tricolor 310b, a combination of rapeseed straw and pig manure, and the combination with Marasmius tricolor 310b. Temperature dynamics, lignocellulosic degradation rates, and fungal community structures were meticulously analyzed. While Marasmius tricolor 310b did not significantly alter the temperature profile, its presence markedly enhanced the degradation rates of cellulose and lignin. With the introduction of Marasmius tricolor 310b, the degradation rate of cellulose in the rapeseed straw compost increased from 0.0319 (ST) to 0.0419 (STM). In the combined rapeseed straw and pig manure compost, this rate rose from 0.0422 (STPM) to 0.045 (STPMM). For hemicellulose, the degradation rate in the rapeseed straw compost increased from 0.0103 (ST) to 0.014 (STM). However, in the combined compost, it slightly decreased from 0.0146 (STPM) to 0.013 (STPMM). As for lignin, its degradation rate in the rapeseed straw compost saw an increase from 0.0024 (ST) to 0.00366 (STM). In the combined compost, the rate rose from 0.00302 (STPM) to 0.00402 (STPMM). Fungal community analyses revealed discernible shifts in structure and diversity upon the fungus’s introduction. Network analyses further highlighted a highly interconnected microbial community, suggesting its robustness against perturbations. Temporal dynamics underscored the intricate interplay of microbial interactions, substrate availability, and external inoculants. The introduction of Marasmius tricolor 310b profoundly influences composting dynamics, offering valuable insights into microbial community interactions and presenting potential avenues for optimizing composting strategies.

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“…We also found that the highest relative abundance of Ascomycota in the late wintering stage ( Supplementary Figure S2A ). Ascomycota were the main cellulolytic fungi ( Zheng et al, 2020 ), and they could secrete massive cellulase and hemicellulase to decompose complex polysaccharides ( Lichius et al, 2015 ; Linton, 2020 ; Sun et al, 2022 ) and improve the nutrient utilization rate for their hosts ( Zhang et al, 2019 ).…”

Section: Discussionmentioning

confidence: 99%

Significant differences in intestinal fungal community of hooded cranes along the wintering periods

Zhao

Zhong

et al. 2022

Front. Microbiol.

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The intestinal microbiota play vital roles for health of wild birds in many ways. Migratory birds with unique life history might increase the risk of pathogenic transmission across the regions. However, few studies have clarified the fungal community structure and inferred the potential pathogens in guts of migratory birds. The high-throughput sequencing method was applied to analyze the fungal community structure and detect the potential fungal pathogens in guts of hooded cranes among different wintering stages. Significant differences were found in gut fungal community composition of hooded cranes among three wintering stages, with the lowest fungal diversity in the late wintering stage. In the late stage, hooded cranes harbored higher relative abundance of plant saprotroph, contributing to food digestion for hosts. Hooded cranes were associated with the lowest diversity and relative abundance of animal pathogens in the late wintering stage. There was an increasing trend of deterministic process for gut fungal community assembly, suggesting that hosts interaction with their fungal communities changed by enhanced gut selection/filtering along wintering periods. Hooded crane was associated with the strongest gut selection/filtering to obtain defined gut fungal community with retaining probiotics (i.e., plant saprotroph) and exclusion of certain pathogens in the late wintering stage. Overall, these results demonstrated that hooded cranes might regulate their gut microbiota to enhance digestion and decrease gut pathogens in preparation for long-term migration.

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Microecological insight to fungal structure and key fungal communities regulating nitrogen transformation based on spatial heterogeneity during cow manure composting by multi-angle and multi-aspect analyses

Cited by 18 publications

References 46 publications

Effects of Regular Water Replenishment on Enzyme Activities and Fungal Metabolic Function of Sheep Manure Composting on the Qinghai–Tibet Plateau

Effects of Regular Water Replenishment on Enzyme Activities and Fungal Metabolic Function of Sheep Manure Composting on the Qinghai–Tibet Plateau

The Impact of Marasmius tricolor 310b on the Degradation of Cellulose in Rapeseed Straw Composting

Significant differences in intestinal fungal community of hooded cranes along the wintering periods

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