Importance of Bacteroidetes in host–microbe interactions and ecosystem functioning

Pan, Xinya; Raaijmakers, Jos M.; Carrión, Víctor J.

doi:10.1016/j.tim.2023.03.018

Cited by 61 publications

(20 citation statements)

References 123 publications

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“…Bacteroidetes and Spirochaetes play an important role in the fermentation of complex polysaccharide substances, contributing to the maintenance of microbial balance in the gut and the production of SCFAs to support the health and function of colon cells ( Ye et al, 2022 ; Pan et al, 2023 ). As shown in Figure 10A , at the phylum level, the abundances of Bacteroidetes and Spirochaetes in RJP-Cu treatment group were higher than that in CuSO 4 and control group, and the abundance of Actinobacteria in RJP-Cu treatment group were remarkably lower than that in control group.…”

Section: Discussionmentioning

confidence: 99%

Preparation and activity study of Ruoqiang jujube polysaccharide copper chelate

Moheteer,

Li,

Abulikemu

et al. 2024

Front. Pharmacol.

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Background: Polysaccharide metal chelate exhibit both immunoregulatory activity and metal element supplementation effects.Methods: In this study, Ruoqiang jujube polysaccharide copper chelate (RJP-Cu) was prepared and the preparation conditions were optimized using the response surface method. Subsequently, RJP-Cu was administered to lambs to evaluate its impact on growth performance, copper ion (Cu2+) supplementation, immune enhancement, and intestinal flora was evaluated.Results: The results indicated that optimal RJP-Cu chelation conditions included a sodium citrate content of 0.5 g, a reaction temperature of 50°C, and a solution pH of 8.0, resulting in a Cu2+ concentration of 583°mg/kg in RJP-Cu. Scanning electron microscopy (SEM) revealed significant structural changes in RJP before and after chelation. RJP-Cu displaying characteristic peaks of both polysaccharides and Cu2+ chelates. Blood routine indexes showed no significant differences among the RJP-Cu-High dose group (RJP-Cu-H), RJP-Cu-Medium dose group (RJP-Cu-M), RJP-Cu-low dose group (RJP-Cu-L) and the control group (p > 0.05). However, compared with the control group, the RJP-Cu-H, M, and L dose groups significantly enhanced lamb production performance (p < 0.05). Furthermore, RJP-Cu-H, M, and L dose groups significantly increased serum Cu2+ concentration, total antioxidant capacity (T-AOC), catalase (CAT), and total superoxide dismutase (T-SOD) contents compared with control group (p < 0.05). The RJP-Cu-H group exhibited significant increases in serum IgA and IgG antibodies, as well as the secretion of cytokines IL-2, IL-4, and TNF-α compared to the control group (p < 0.05). Furthermore, RJP-Cu-H group increased the species abundance of lamb intestinal microbiota, abundance and quantity of beneficial bacteria, and decrease the abundance and quantity of harmful bacteria. The RJP-Cu-H led to the promotion of the synthesis of various Short Chain Fatty Acids (SCFAs), improvements in atrazine degradation and clavulanic acid biosynthesis in lambs, while reducing cell apoptosis and lipopolysaccharide biosynthesis.Conclusion: Thus, these findings demonstrate that RJP-Cu, as a metal chelate, could effectively promote lamb growth performance, increase Cu2+ content, and potentially induce positive immunomodulatory effects by regulating antioxidant enzymes, antibodies, cytokines, intestinal flora, and related metabolic pathways.

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Section: Discussionmentioning

confidence: 99%

Preparation and activity study of Ruoqiang jujube polysaccharide copper chelate

Moheteer,

Li,

Abulikemu

et al. 2024

Front. Pharmacol.

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“…Clostridia are pivotal in anaerobic decomposition and maintenance of soil structure, potentially promoting the health and stability of plant root systems ( Mowlick et al, 2013 ; Huang et al, 2019 ). Bacteroidia primarily contribute to nutrient uptake and plant health and may play a role in plant disease resistance and nitrogen fixation processes ( Pan et al, 2023 ). These microbiome taxa potentially exert significant functional impacts on the ecological stability, growth, and adaptation to adversity in cotton seeds.…”

Section: Discussionmentioning

confidence: 99%

Vertical transfer and functional characterization of cotton seed core microbiome

Wu,

Zhang,

Fan

et al. 2024

Front. Microbiol.

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IntroductionMicrobiome within plant tissues is pivotal for co-evolution with host plants. This microbiome can colonize the plant, with potential transmission via seeds between parents and offspring, affecting seedling growth and host plant adaptability to the environment.MethodsWe employed 16S rRNA gene amplicon analysis to investigate the vertical distribution of core microbiome in cotton seeds across ecological niches [rhizosphere, root, stem, leaf, seed and seed-P (parental seed)] of the three cotton genotypes.ResultsThe findings demonstrated a significant decrease in microbiome diversity and network complexity from roots, stems, and leaves to seeds. The microenvironment exerted a more substantial influence on the microbiome structure of cotton than the genotypes. The core endophytic microorganisms in cotton seeds comprised 29 amplicon sequence variants (ASVs) affiliated with Acidimicrobiia, Alphaproteobacteria, Bacilli, Bacteroidia, Clostridia, Gammaproteobacteria, and unclassified_Proteobacteria. These vertically transmitted taxa are widely distributed in cotton plants. Through 16S rRNA gene-based function prediction analysis of the cotton microbiome, we preliminarily understood that there are potential differences in metabolic capabilities and phenotypic traits among microbiomes in different microhabitats.DiscussionIn conclusion, this study demonstrated the crucial role of the microenvironment in influencing the cotton microbiome and offered insights into the structures and functions of the cotton seed microbiome, facilitating future crop yield enhancement through core seed microbiome regulation.

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“…Bacterial sphingolipids have the ability to migrate from epithelial cells to various host organs, thereby regulating its immune system and lipid metabolism (Bai et al, 2023). Flavobacteriales on the other hand, play several roles in various metabolic pathways, such as biotin metabolism, nitrogen metabolism, vitamins, amino-acid and fatty acid biosynthesis (Rosas-Pérez et al, 2014; Yang et al, 2017; Zhou et al, 2022) and can bare positive effects on the host growth and development (Pan et al, 2023). At the genus level, Cloacibacterium sp.…”

Section: Discussionmentioning

confidence: 99%

Maternal body condition affects the response of larval spined toads’ faecal microbiome to a widespread contaminant

Tartu,

Pollet,

Clavereau

et al. 2023

Preprint

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Glyphosate’s primary metabolite, aminomethylphosphonic acid (AMPA) is the most detected pollutant in surface waters. Recent studies have raised concerns regarding its toxicity, yet the involved underlying mechanisms remain poorly understood. A disruption of the gut microbiome, which plays a crucial role in host health, could be the mediator of most adverse effects. We investigated the impact of AMPA exposure on the gut microbiome of spined toad tadpoles (Bufo spinosus). We hypothesized that AMPA could alter the gut microbiota composition and that these effects could depend on the microbiota source. We exposed tadpoles to minute concentrations of AMPA and analyzed their faecal microbiota using 16S rRNA gene sequencing as a proxy of the gut microbiota. AMPA exposure decreased the gut bacterial biomass and affected bacterial community composition of tadpole’s faeces. Furthermore, we observed interactions between AMPA exposure and maternal body condition on the Bacteroidota and Actinobacteriota phyla abundances. This suggests a maternal effect on early-life microbial colonizers that could influence the response of the gut microbiome to AMPA. These findings highlight the importance of considering the gut microbiome when studying the effects of environmental contaminants. Further research is needed to elucidate the long-term implications of this microbiome alteration for amphibian health.

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Importance of Bacteroidetes in host–microbe interactions and ecosystem functioning

Cited by 61 publications

References 123 publications

Preparation and activity study of Ruoqiang jujube polysaccharide copper chelate

Preparation and activity study of Ruoqiang jujube polysaccharide copper chelate

Vertical transfer and functional characterization of cotton seed core microbiome

Maternal body condition affects the response of larval spined toads’ faecal microbiome to a widespread contaminant

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