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Your search keyword '"Xie, Jiyu"' showing total 24 results
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24 results on '"Xie, Jiyu"'

1. Enhanced surface colonisation and competition during bacterial adaptation to a fungus

Author

Richter, Anne, Blei, Felix, Hu, Guohai, Schwitalla, Jan W., Lozano-Andrade, Carlos N., Xie, Jiyu, Jarmusch, Scott A., Wibowo, Mario, Kjeldgaard, Bodil, Surabhi, Surabhi, Xu, Xinming, Jautzus, Theresa, Phippen, Christopher B. W., Tyc, Olaf, Arentshorst, Mark, Wang, Yue, Garbeva, Paolina, Larsen, Thomas Ostenfeld, Ram, Arthur F. J., van den Hondel, Cees A. M., Maróti, Gergely, and Kovács, Ákos T.

Published
2024
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10. Metabolic interactions affect the biomass of synthetic bacterial biofilm communities

Author

Sun, Xinli, Xie, Jiyu, Zheng, Daoyue, Xia, Riyan, Wang, Wei, Xun, Weibing, Huang, Qiwei, Zhang, Ruifu, Kovács, Ákos T., Xu, Zhihui, Shen, Qirong, Sun, Xinli, Xie, Jiyu, Zheng, Daoyue, Xia, Riyan, Wang, Wei, Xun, Weibing, Huang, Qiwei, Zhang, Ruifu, Kovács, Ákos T., Xu, Zhihui, and Shen, Qirong

Abstract

ABSTRACT Microbes typically reside in communities containing multiple species, whose interactions have considerable impacts on the robustness and functionality of such communities. To manage microbial communities, it is essential to understand the factors driving their assemblage and maintenance. Even though the community composition could be easily assessed, interspecies interactions during community establishment remain poorly understood. Here, we combined co-occurrence network analysis with quantitative PCR to examine the importance of each species within synthetic communities (SynComs) of pellicle biofilms. Genome-scale metabolic models and in vitro experiments indicated that the biomass of SynComs was primarily affected by keystone species that are acting either as metabolic facilitators or as competitors. Our study sets an example of how to construct a SynCom and investigate interspecies interactions. IMPORTANCE Co-occurrence network analysis is an effective tool for predicting complex networks of microbial interactions in the natural environment. Using isolates from a rhizosphere, we constructed multi-species biofilm communities and investigated co-occurrence patterns between microbial species in genome-scale metabolic models and in vitro experiments. According to our results, metabolic exchanges and resource competition may partially explain the co-occurrence network analysis results found in synthetic bacterial biofilm communities.

Published
2023

20. Bacillus velezensisstimulates resident rhizosphere Pseudomonas stutzerifor plant health through metabolic interactions

Author

Sun, Xinli, Xu, Zhihui, Xie, Jiyu, Hesselberg-Thomsen, Viktor, Tan, Taimeng, Zheng, Daoyue, Strube, Mikael L, Dragoš, Anna, Shen, Qirong, Zhang, Ruifu, and Kovács, Ákos T

Abstract

Trophic interactions play a central role in driving microbial community assembly and function. In gut or soil ecosystems, successful inoculants are always facilitated by efficient colonization; however, the metabolite exchanges between inoculants and resident bacteria are rarely studied, particularly in the rhizosphere. Here, we used bioinformatic, genetic, transcriptomic, and metabonomic analyses to uncover syntrophic cooperation between inoculant (Bacillus velezensisSQR9) and plant-beneficial indigenous Pseudomonas stutzeriin the cucumber rhizosphere. We found that the synergistic interaction of these two species is highly environmental dependent, the emergence of syntrophic cooperation was only evident in a static nutrient-rich niche, such as pellicle biofilm in addition to the rhizosphere. Our results identified branched-chain amino acids (BCAAs) biosynthesis pathways are involved in syntrophic cooperation. Genome-scale metabolic modeling and metabolic profiling also demonstrated metabolic facilitation among the bacterial strains. In addition, biofilm matrix components from Bacilluswere essential for the interaction. Importantly, the two-species consortium promoted plant growth and helped plants alleviate salt stress. In summary, we propose a mechanism in which synergic interactions between a biocontrol bacterium and a partner species promote plant health.

Published
2022
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23. Bacillus velezensisstimulates resident rhizosphere Pseudomonas stutzerifor plant health through metabolic interactions

Author

Sun, Xinli, Xu, Zhihui, Xie, Jiyu, Hesselberg-Thomsen, Viktor, Tan, Taimeng, Zheng, Daoyue, Strube, Mikael L., Dragoš, Anna, Shen, Qirong, Zhang, Ruifu, and Kovács, Ákos T.

Abstract

Trophic interactions play a central role in driving microbial community assembly and function. In gut or soil ecosystems, successful inoculants are always facilitated by efficient colonization; however, the metabolite exchanges between inoculants and resident bacteria are rarely studied, particularly in the rhizosphere. Here, we used bioinformatic, genetic, transcriptomic, and metabonomic analyses to uncover syntrophic cooperation between inoculant (Bacillus velezensisSQR9) and plant-beneficial indigenous Pseudomonas stutzeriin the cucumber rhizosphere. We found that the synergistic interaction of these two species is highly environmental dependent, the emergence of syntrophic cooperation was only evident in a static nutrient-rich niche, such as pellicle biofilm in addition to the rhizosphere. Our results identified branched-chain amino acids (BCAAs) biosynthesis pathways are involved in syntrophic cooperation. Genome-scale metabolic modeling and metabolic profiling also demonstrated metabolic facilitation among the bacterial strains. In addition, biofilm matrix components from Bacilluswere essential for the interaction. Importantly, the two-species consortium promoted plant growth and helped plants alleviate salt stress. In summary, we propose a mechanism in which synergic interactions between a biocontrol bacterium and a partner species promote plant health.

Published
2021
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24. Protective association between dietary phytosterol intake and cardiovascular health: an analysis of the UK Biobank cohort.

Author

Qiao W, Feng H, Zhang YF, Zhang Z, Yang J, Wu M, Xie J, Huang J, Zhou T, and Zhang Y

Abstract

Background : Cardiovascular diseases (CVDs) remain a leading cause of morbidity and mortality worldwide, with dietary interventions showing promise in reducing CVD risk factors. Phytosterols (PSs) in plant-based foods may reduce CVD risk by lowering low-density lipoprotein cholesterol. However, the relationship between dietary PS intake and CVD outcomes remains inconclusive. Methods : This study investigated the association between dietary PS intake and CVD outcomes, including coronary heart disease (CHD) and cardiovascular mortality, using a large cohort of 167 209 UK Biobank participants. PS intake was assessed through repeated 24 hour dietary recall data, with participants stratified into quintiles. The Cox proportional-hazards model was used to estimate hazard ratios (HRs) for CVD risk across quintiles of PS intake, adjusting for potential confounders. Restricted cubic splines were used to examine the nonlinear relationship between phytosterol intake and cardiovascular disease risk. Sensitivity and subgroup analyses explored interactions with demographic and lifestyle factors. Results : Higher dietary PS intake was significantly associated with a reduced risk of CVD events, including CHD and cardiovascular mortality. Each 100 mg increase in PS intake was linked to an 8% reduction in CVD risk (HR = 0.92, 95% CI: 0.87, 0.97). Multivariable-adjusted analyses revealed that participants in the highest quintile of PS intake had significantly lower CVD hazard ratios (HR = 0.81, 95% CI: 0.77, 0.84) compared to those in the lowest quintile. Significant inverse associations were also observed for cardiovascular mortality (HR: 0.86, 95% CI: 0.80, 0.94) and CHD (HR: 0.91, 95% CI: 0.84, 0.98). Subgroup analysis highlighted stronger inverse associations in current smokers, individuals with lower body mass index (BMI), and those with moderate to high physical activity levels, with variations observed based on dyslipidemia status. Sensitivity analyses, excluding early events and adjusting for energy intake, confirmed the robustness of the findings. Conclusions : This large cohort study provides evidence supporting the cardioprotective effects of dietary PS intake, particularly for CHD and cardiovascular mortality. Dietary PS may be considered an integral component of heart-healthy diets.

Published
2025
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