Changes in chemical composition, structural and functional microbiome during alfalfa (Medicago sativa) ensilage with Lactobacillus plantarum PS-8

You, Lijun; Bao, Weichen; Yao, Caiqing; Zhao, Feiyan; Jin, Hao; Huang, Weiqiang; Li, Bohai; Kwok, Lai‐Yu; Liu, Wenjun

doi:10.1016/j.aninu.2021.12.004

Cited by 15 publications

(9 citation statements)

References 60 publications

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“…This bacterial network stability could be attributed to L. buchneri and L. hilgardii domination in the later phase of ensiling, as their activities are negatively correlated with most of the bacteria. Similarly, a previous study reported that the bacterial community network in alfalfa silage treated with LAB was more stable after day 7 of fermentation ( 35 ).…”

Section: Discussionmentioning

confidence: 52%

“…Metabolisms of amino acids, carbohydrates, cofactors, and vitamins were positively correlated with LA, the main product in high-quality fermented silage. These upregulated metabolic pathways are indicators of continuous bacterial activity, which breaks down polysaccharides within the plants into monosaccharides and LA ( 35 ). This may provide valuable clues for targeting specific metabolic pathways in order to regulate the fermentation quality of silages.…”

Section: Discussionmentioning

confidence: 99%

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Dynamic Changes in Fermentation Quality and Structure and Function of the Microbiome during Mixed Silage of Sesbania cannabina and Sweet Sorghum Grown on Saline-Alkaline Land

et al. 2022

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The coensiling of Sesbania cannabina and sweet sorghum is of great practical importance in order to alleviate the protein-rich forage deficiency in saline-alkaline regions. Furthermore, understanding the microbial community’s dynamic changes, interactions, and metabolic pathways during ensiling will provide the theoretical basis to effectively regulate silage fermentation.

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Section: Discussionmentioning

confidence: 52%

Section: Discussionmentioning

confidence: 99%

Dynamic Changes in Fermentation Quality and Structure and Function of the Microbiome during Mixed Silage of Sesbania cannabina and Sweet Sorghum Grown on Saline-Alkaline Land

et al. 2022

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“…We searched appropriate datasets in the National Center for Biotechnology Information (NCBI) Sequence Read Archive (SRA) repository. In December 2021, only two shotgun metagenomic BioProjects (PRJNA495415 75 , PRJNA764355) could have been found that had adequate depth for the de novo assembly that our study is based on. The median read count (interquartile range, IQR) of the samples was 26 .…”

Section: Methodsmentioning

confidence: 99%

Antimicrobial resistance determinants in silage

Nagy

Tóth

Papp

et al. 2022

Sci Rep

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Animal products may play a role in developing and spreading antimicrobial resistance in several ways. On the one hand, residues of antibiotics not adequately used in animal farming can enter the human body via food. However, resistant bacteria may also be present in animal products, which can transfer the antimicrobial resistance genes (ARG) to the bacteria in the consumer’s body by horizontal gene transfer. As previous studies have shown that fermented foods have a meaningful ARG content, it is indicated that such genes may also be present in silage used as mass feed in the cattle sector. In our study, we aspired to answer what ARGs occur in silage and what mobility characteristics they have? For this purpose, we have analyzed bioinformatically 52 freely available deep sequenced silage samples from shotgun metagenome next-generation sequencing. A total of 16 perfect matched ARGs occurred 54 times in the samples. More than half of these ARGs are mobile because they can be linked to integrative mobile genetic elements, prophages or plasmids. Our results point to a neglected but substantial ARG source in the food chain.

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“…hetero-fermented by LAB to produce lactate, acetate, and ethanol (Figure 3;Gänzle, 2015;You et al, 2022). Although such predictions of functional pathways have offered information on functional shifts in microbial communities during ensiling, the precise details or mechanisms underlying these changes mediated by LAB inoculation remain unclear and warrant further research in the future.…”

Section: Lactic Acid Bacteria Modulating Microbial Community Function...mentioning

confidence: 99%

“…However, with very few exceptions, LAB is unable to ferment biomass like starchy or lignocellulosic feedstocks (Tarraran & Mazzoli, 2018 ). You et al ( 2022 ) predicted the presence of carbohydrate‐active enzyme (CAZyme) genes in the alfalfa silage microbiome and found that LAB in silage presented the highest abundance of glucoside hydrolases, with Latilactobacillus curvatus (formerly Lactobacillus curvatus ), Levilactobacillus brevis , and Lactiplantibacillus plantarum and Weissella (e.g. Weissella cibaria , Weissella hellenica , and Weissella kandleri ) carrying a higher number of CAZyme genes for degrading starch, arabinoxylan, and cellulose.…”

Section: Lactic Acid Bacteria Modulating Microbial Community Structur...mentioning

confidence: 99%

Current approaches on the roles of lactic acid bacteria in crop silage

Guo

et al. 2022

Microbial Biotechnology

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Lactic acid bacteria (LAB) play pivotal roles in the preservation and fermentation of forage crops in spontaneous or inoculated silages. Highlights of silage LAB over the past decades include the discovery of the roles of LAB in silage bacterial communities and metabolism and the exploration of functional properties. The present article reviews published literature on the effects of LAB on the succession, structure, and functions of silage microbial communities involved in fermentation. Furthermore, the utility of functional LAB in silage preparation including feruloyl esterase‐producing LAB, antimicrobial LAB, lactic acid bacteria with high antioxidant potential, pesticide‐degrading LAB, lactic acid bacteria producing 1,2‐propanediol, and low‐temperature‐tolerant LAB have been described. Compared with conventional LAB, functional LAB produce different effects; specifically, they positively affect animal performance, health, and product quality, among others. In addition, the metabolic profiles of ensiled forages show that plentiful probiotic metabolites with but not limited to antimicrobial, antioxidant, aromatic, and anti‐inflammatory properties are observed in silage. Collectively, the current knowledge on the roles of LAB in crop silage indicates there are great opportunities to develop silage not only as a fermented feed but also as a vehicle of delivery of probiotic substances for animal health and welfare in the future.

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Changes in chemical composition, structural and functional microbiome during alfalfa (Medicago sativa) ensilage with Lactobacillus plantarum PS-8

Cited by 15 publications

References 60 publications

Dynamic Changes in Fermentation Quality and Structure and Function of the Microbiome during Mixed Silage of Sesbania cannabina and Sweet Sorghum Grown on Saline-Alkaline Land

Dynamic Changes in Fermentation Quality and Structure and Function of the Microbiome during Mixed Silage of Sesbania cannabina and Sweet Sorghum Grown on Saline-Alkaline Land

Antimicrobial resistance determinants in silage

Current approaches on the roles of lactic acid bacteria in crop silage

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