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Liu SH, Zhang Y, Guo ZX, Ayaz S, Wang YX, Huang ZH, Cao HH, Xu JP. Effects of baculovirus infection on intestinal microflora of BmNPV resistant and susceptible strain silkworm. JOURNAL OF ECONOMIC ENTOMOLOGY 2024; 117:1141-1151. [PMID: 38706118 DOI: 10.1093/jee/toae088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 03/05/2024] [Accepted: 04/13/2024] [Indexed: 05/07/2024]
Abstract
Bombyx mori L. (Lepidoptera: Bombycidae) nucleopolyhedrovirus (BmNPV) is a serious pathogen causing huge economic losses to sericulture. There is growing evidence that the gut microbiota of silkworms plays a critical role in shaping host responses and interactions with viral infection. However, little is known about the differences in the composition and diversity of intestinal microflora, especially with respect to silkworm strain differences and BmNPV infection-induced changes. Here, we aim to explore the differences between BmNPV-resistant strain A35 and susceptible strain P50 silkworm and the impact of BmNPV infection on intestinal microflora in different strains. The 16S rDNA sequencing analysis revealed that the fecal microbial populations were distinct between A35 and P50 and were significantly changed post BmNPV infection in both strains. Further analysis showed that the BmNPV-resistant strain silkworm possessed higher bacterial diversity than the susceptible strain, and BmNPV infection reduced the diversity of intestinal flora assessed by feces in both silkworm strains. In response to BmNPV infection, the abundance of Muribaculaceae increased in P50 and decreased in A35, while the abundance of Enterobacteriaceae decreased in P50 and increased in A35. These results indicated that BmNPV infection had various effects on the abundance of fecal microflora in different silkworm strains. Our findings not only broadened the understanding of host-pathogen interactions but also provided theoretical help for the breeding of resistant strains and healthy rearing of silkworms based on symbiotic bacteria.
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Affiliation(s)
- Shi-Huo Liu
- Anhui Province Key Laboratory of Resource Insects Biology and Innovative Utilization, School of Life Sciences, Anhui Agricultural University, Hefei 230036, China
- Anhui International Joint Research and Developmental Center of Sericulture Resources Utilization, Hefei 230036, China
| | - Ying Zhang
- Anhui Province Key Laboratory of Resource Insects Biology and Innovative Utilization, School of Life Sciences, Anhui Agricultural University, Hefei 230036, China
- Anhui International Joint Research and Developmental Center of Sericulture Resources Utilization, Hefei 230036, China
| | - Zhe-Xiao Guo
- Anhui Province Key Laboratory of Resource Insects Biology and Innovative Utilization, School of Life Sciences, Anhui Agricultural University, Hefei 230036, China
- Anhui International Joint Research and Developmental Center of Sericulture Resources Utilization, Hefei 230036, China
| | - Sadaf Ayaz
- Anhui Province Key Laboratory of Resource Insects Biology and Innovative Utilization, School of Life Sciences, Anhui Agricultural University, Hefei 230036, China
- Anhui International Joint Research and Developmental Center of Sericulture Resources Utilization, Hefei 230036, China
| | - Yan-Xiang Wang
- Anhui Province Key Laboratory of Resource Insects Biology and Innovative Utilization, School of Life Sciences, Anhui Agricultural University, Hefei 230036, China
- Anhui International Joint Research and Developmental Center of Sericulture Resources Utilization, Hefei 230036, China
| | - Zhi-Hao Huang
- Anhui Province Key Laboratory of Resource Insects Biology and Innovative Utilization, School of Life Sciences, Anhui Agricultural University, Hefei 230036, China
- Anhui International Joint Research and Developmental Center of Sericulture Resources Utilization, Hefei 230036, China
| | - Hui-Hua Cao
- Anhui Province Key Laboratory of Resource Insects Biology and Innovative Utilization, School of Life Sciences, Anhui Agricultural University, Hefei 230036, China
- Anhui International Joint Research and Developmental Center of Sericulture Resources Utilization, Hefei 230036, China
| | - Jia-Ping Xu
- Anhui Province Key Laboratory of Resource Insects Biology and Innovative Utilization, School of Life Sciences, Anhui Agricultural University, Hefei 230036, China
- Anhui International Joint Research and Developmental Center of Sericulture Resources Utilization, Hefei 230036, China
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Xia X, Lu J, Chen X, Zhou L, Huang Y, Ding S, Li G. Impact of whole grain highland hull-less barley on the denaturing gradient gel electrophoresis profiles of gut microbial communities in rats fed high-fat diets. Microbiol Spectr 2024; 12:e0408923. [PMID: 38747621 PMCID: PMC11237377 DOI: 10.1128/spectrum.04089-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Accepted: 04/23/2024] [Indexed: 06/06/2024] Open
Abstract
Polymerase chain reaction-denaturing gradient gel electrophoresis (PCR-DGGE) is a traditional non-culture technique that can provide a fingerprint of the microbial community. In the field of gut microbiota analysis, PCR-DGGE still holds potential for development. In the present study, we utilized an improved nested PCR-DGGE approach targeting the V3 region of 16S ribosomal DNA to investigate the impact of whole grain highland hull-less barley (WHLB), a cereal known for its significant hypocholesterolemic effect, on the gut microbiota profiles of high-fat diet rats. Seventy-two male Sprague-Dawley rats were divided into four groups and fed a normal control diet, a high-fat diet, or a high-fat diet supplemented with a low or high dose of WHLB for 4 or 8 weeks. The results revealed that the dominant bands varied among different dose groups and further changed with different treatment times. The compositions of bacterial communities in feces and cecal content were similar, but the dominant bacterial bands differed. After performing double DGGE, extracting the bands, sequencing the DNA, and aligning the sequences, a total of 19 bands were classified under the Firmicutes and Bacteroidetes phyla, while two bands were identified as unclassified uncultured bacteria. The relative abundance of Lactobacillus gasseri, Uncultured Prevotella sp., and Clostridium sp. increased following the administration of WHLB. Illumina-based sequencing was employed to assess the reliability of DGGE, demonstrating its reliability in analyzing the dominant taxonomic composition, although it may have limitations in accurately detecting the alpha diversity of bacterial species. IMPORTANCE While next-generation sequencing has overshadowed polymerase chain reaction-denaturing gradient gel electrophoresis (PCR-DGGE), the latter still holds promise for advancing gut microbiota analysis due to its unique advantages. In this study, we used optimized nested PCR-DGGE to investigate the gut microbiota profile of high-fat diet rats after administering whole grain highland hull-less barley. High-throughput sequencing was employed to validate the DGGE results. Our results proved the reliability of PCR-DGGE for analyzing the dominant taxonomic composition while also providing visual evidence of a notable relationship between the composition of cecal and fecal microbial communities, highlighting substantial differences in both richness and abundance.
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Affiliation(s)
- Xuejuan Xia
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, China
| | - Jing Lu
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, China
| | - Xuanyu Chen
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, China
| | - Lu Zhou
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, China
| | - Yadong Huang
- Inner Mongolia Yili Industrial Group Co., Ltd, Hohhot, China
| | - Shunjie Ding
- Army Logistics University of PLA, Chongqing, China
| | - Guannan Li
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass Science, Southwest University, Chongqing, China
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Bi S, Wang X, Tang Y, Lei K, Guo J, Yang N, Wan F, Lü Z, Liu W. Bacterial Communities of the Internal Reproductive and Digestive Tracts of Virgin and Mated Tuta absoluta. INSECTS 2023; 14:779. [PMID: 37887791 PMCID: PMC10606990 DOI: 10.3390/insects14100779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 09/14/2023] [Accepted: 09/18/2023] [Indexed: 10/28/2023]
Abstract
Microorganisms can affect host reproduction, defense, and immunity through sexual or opportunistic transmission; however, there are few studies on insect reproductive organs and intestinal bacterial communities and their effects on mating. Tuta absoluta is a worldwide quarantine pest that seriously threatens the production of Solanaceae crops, and the microbial community within tomato leafminers remains unclear. In this study, 16s rRNA sequencing was used to analyze bacterial communities related to the reproductive organs and intestinal tracts of tomato leafminers (the sample accession numbers are from CNS0856533 to CNS0856577). Different bacterial communities were found in the reproductive organs and intestinal tracts of females and males. Community ecological analysis revealed three potential signs of bacterial sexual transmission: (1) Mating increased the similarity between male and female sex organs and intestinal communities. (2) The bacteria carried by mated individuals were found in unmated individuals of the opposite sex but not in unmated individuals of the same sex. (3) The bacteria carried by unmated individuals were lost after mating. In addition, the abundances of bacterial communities carried by eggs were significantly higher than those of adult worms. Our results confirm that mating leads to the transfer of bacterial communities in the reproductive organs and gut of tomato leafminers, and suggest that this community strongly influences the reproductive process.
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Affiliation(s)
- Siyan Bi
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Xiaodi Wang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Yanhong Tang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Kexin Lei
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Jianyang Guo
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Nianwan Yang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
- Institute of Western Agriculture, Chinese Academy of Agricultural Sciences, Changji 831100, China
| | - Fanghao Wan
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Zhichuang Lü
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Wanxue Liu
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
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Li G, Cai M, Zheng X, Xie X, Zhu Y, Long Y. Impact of disinfectants on the intestinal bacterial symbionts and immunity of silkworm (Bombyx mori L.). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:79545-79554. [PMID: 35713834 DOI: 10.1007/s11356-022-21442-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Accepted: 06/09/2022] [Indexed: 06/15/2023]
Abstract
The insect egg surface can serve as a vehicle for vertical symbiont transmission from the maternal parent to its offspring. Hypochlorite and formaldehyde are two common disinfectants used for insect egg surface sterilization. Here, we explored the intestinal microecology and immune response profile of the silkworm Bombyx mori strain Dazao after disinfectant exposure by using high-throughput sequencing technology and real-time PCR analysis. After egg surface sterilization, no significant difference (P > 0.05) in overall body weight was observed among the control, sodium hypochlorite, and formaldehyde groups. 16S rRNA metagenomic sequencing revealed that the main abundant intestinal bacteria were Enterococcus, Burkholderia, Phenylobacterium, Ralstonia, Chitinophaga, Bradyrhizobium, Herbaspirillum, and two unclassified Bacteroidetes species. Egg surface sterilization evidently altered the composition and abundance of intestinal microbiota but did not significantly change its alpha diversity. The dysbiosis of intestinal microbiota resulted in the perturbation of the immune response profile of the silkworm intestine. Our findings reveal that hypochlorite has a blocking effect on the symbiont transmission compared with formaldehyde. More importantly, egg surface sterilization exerts substantial effects on the ecophysiological traits of insects. The present study contributes to the scientific and reasonable application of disinfectants for insect egg surface sterilization during industrial silk production and laboratory-scale insect rearing.
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Affiliation(s)
- Guannan Li
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing, 400716, China
| | - Miao Cai
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing, 400716, China
- Foshan Nanshanhu Experimental High School, Foshan, 528200, China
| | - Xi Zheng
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing, 400716, China
| | - Xiaofan Xie
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing, 400716, China
| | - Yong Zhu
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing, 400716, China
| | - Yaohang Long
- Key Laboratory of Biology and Medical Engineering, Immune Cells and Antibody Engineering Research Center of Guizhou Province, School of Biology and Engineering, Guizhou Medical University, Guiyang, 550025, Guizhou Province, People's Republic of China.
- Engineering Research Center of Medical Biotechnology, Guizhou Medical University, Guiyang, 550025, Guizhou Province, People's Republic of China.
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Bombyx mori from a food safety perspective: A systematic review. Food Res Int 2022; 160:111679. [DOI: 10.1016/j.foodres.2022.111679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 07/09/2022] [Accepted: 07/11/2022] [Indexed: 11/21/2022]
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Chen L, Gu T, Wu T, Ding L, Ge Q, Zhang Y, Ma S. Proteotranscriptomic Integration analyses reveals new mechanistic insights regarding Bombyx mori fluorosis. Food Chem Toxicol 2022; 169:113414. [PMID: 36174832 DOI: 10.1016/j.fct.2022.113414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 08/07/2022] [Accepted: 09/03/2022] [Indexed: 11/18/2022]
Abstract
The commercial value of silkworms has been widely explored and the effects of fluoride exposure on silkworms' breeding and silk production cannot be ignored. Bombyx mori is a commonly used model to explore the mechanisms of fluorosis. In the present study, we analyzed the differences in physiological and biochemical indicators after exposing larva to NaF, then evaluated differential genes and proteins. Compared to control, larvae exposed to 600 mg L-1 NaF presented decreased bodyweight, damaged midgut tissue, and were accompanied by oxidative stress. The RNA-seq showed 1493 differentially expressed genes (574 upregulated and 919 downregulated). Meanwhile, the TMT detected 189 differentially expressed proteins (133 upregulated and 56 downregulated). The integrative analysis led to 4 upregulated and 9 downregulated genes and proteins. Finally, we hypothesized that fluoride exposure might affect the intestinal digestion of silkworms, inhibit the gene expression of detoxification enzymes and stimulate cellular immune responses. Our current findings provided new insights into insect fluorosis.
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Affiliation(s)
- Liang Chen
- School of Life Sciences, Jiangsu University, 212013, Zhenjiang, China.
| | - Tongyu Gu
- School of Life Sciences, Jiangsu University, 212013, Zhenjiang, China
| | - Tong Wu
- School of Life Sciences, Jiangsu University, 212013, Zhenjiang, China
| | - Lei Ding
- School of Life Sciences, Jiangsu University, 212013, Zhenjiang, China
| | - Qi Ge
- School of the Environment and Safety Engineering, Jiangsu University, 212013, Zhenjiang, China
| | - Yao Zhang
- School of Life Sciences, Jiangsu University, 212013, Zhenjiang, China
| | - Shangshang Ma
- School of Life Sciences, Jiangsu University, 212013, Zhenjiang, China
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Li G, Zheng X, Zhu Y, Long Y, Xia X. In-depth insights into the disruption of the microbiota-gut-blood barrier of model organism (Bombyx mori) by fluoride. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 838:156220. [PMID: 35623528 DOI: 10.1016/j.scitotenv.2022.156220] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2021] [Revised: 05/19/2022] [Accepted: 05/21/2022] [Indexed: 06/15/2023]
Abstract
Fluoride is a serious health risk to animals and humans. The microbiota-gut-blood barrier (MGBB) plays an indispensable role in maintaining the systematic homeostasis of host organisms. However, the toxic effects of fluoride on MGBB of organisms have not been extensively investigated. Here, we used the silkworm interspecies model to explore the adverse effects of fluoride on the gut microbiota and intestinal tissue and circulating metabolites of organisms. Results showed that fluoride exposure significantly declined the body weight gain and survival rate of organisms and evidently damaged intestinal epithelial cells. In addition, fluoride altered the composition and abundance of intestinal microbiota, which was accompanied by changing gene expression levels of antimicrobial peptides in intestinal tissue. Shifts in the relative abundance of Enterococcus, Aquabacterium, Aureimonas and Methylobacterium in the gut had significant correlations with the concentrations of certain differential metabolites (e.g., amino acids, nucleotides, and nucleotide derivatives) in the bloodstream. Moreover, most circulating metabolites in related nucleotide metabolism pathways were upregulated, whereas those in the pathways of amino acid metabolism were downregulated. This study deepens our understanding of the disruptive effect of fluoride on the MGBB of host organisms and may provide a new insight into the preventive therapy of fluoride-induced diseases.
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Affiliation(s)
- Guannan Li
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass, Southwest University, Chongqing 400716, China
| | - Xi Zheng
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass, Southwest University, Chongqing 400716, China
| | - Yong Zhu
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass, Southwest University, Chongqing 400716, China
| | - Yaohang Long
- Key Laboratory of Biology and Medical Engineering, Immune Cells and Antibody Engineering Research Center of Guizhou Province, School of Biology and Engineering, Guizhou Medical University, Guiyang 550025, Guizhou Province, China; Engineering Research Center of Medical Biotechnology, Guizhou Medical University, Guiyang 550025, Guizhou Province, China.
| | - Xuejuan Xia
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China.
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Zhineng Y, Ying M, Bingjie T, Rouxian Z, Qiang Z. Intestinal microbiota and functional characteristics of black soldier fly larvae (Hermetia illucens). ANN MICROBIOL 2021. [DOI: 10.1186/s13213-021-01626-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Abstract
Purpose
Black soldier fly transforms organic waste into insect protein and fat, which makes it valuable for ecological utilization. This process is associated with the intestinal microbiota. This research was developed to determine the type and functional characteristics of intestinal microbiota present in black soldier fly larvae.
Methods
In this research, metagenomics has been used to study black soldier fly larvae gut bacteria, which involves the high abundance of the gut microbe advantage bacterium group, the impact, and the physiological functions of the microbiota. Furthermore, intestinal bacteria and their related functions were investigated by bioinformatics analysis to evaluate potential microbial strains that may be used to improve feed utilization efficiency in factory farming.
Result
The results showed that black soldier fly larvae’s intestine contains more than 11,000 bacteria. The high relative abundance of group W (larvae fed with 75% wheat bran and 25% soybean powder) may promote feed utilization efficiency, whereas high relative abundance of group T microbiota (larvae fed with 75% wheat bran and 25% soybean powder supplemented with 1% tetracycline) may play an important role in black soldier fly larvae survival.
Conclusion
The gut bacteria in black soldier fly larvae were involved in polysaccharide biosynthesis and metabolism, translation, membrane transport, energy metabolism, cytoskeleton, extracellular structures, inorganic ion transport and metabolism, nucleotide metabolism, and coenzyme transport physiological processes. The 35 significant differential microbes in group W may have a positive impact on feed utilization and physiological process.
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Barretto DA, Gadwala M, Vootla SK. The silkworm gut microbiota: A potential source for biotechnological applications. J Microbiol Methods 2021. [DOI: 10.1016/bs.mim.2021.04.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Comparison of bacterial communities between midgut and midgut contents in two silkworms, Antheraea pernyi and Bombyx mori. Sci Rep 2020; 10:12966. [PMID: 32737424 PMCID: PMC7395759 DOI: 10.1038/s41598-020-69906-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Accepted: 07/20/2020] [Indexed: 11/14/2022] Open
Abstract
Bacterial communities living inside the midgut of insects have been attracting increasing interest. Previous studies have shown that both the midgut and midgut contents harbor bacterial communities. However, whether the bacterial communities of the insect midgut are similar to those of the insect midgut contents (including the peritrophic membrane, food particles, and digestive fluids secreted by the midgut in this study) remains unknown. In the present study, we analyzed two economically important silkworms, the Chinese oak silkworm Antheraea pernyi (Lepidoptera: Saturniidae) and the mulberry silkworm Bombyx mori (Lepidoptera: Bombycidae), through Illumina MiSeq technology to address this issue. In A. pernyi larvae, 17 phyla and 162 genera were found in the midgut, while 7 phyla and 36 genera were found in the midgut contents. For B. mori larvae, 30 phyla and 465 genera were found in the midgut, but 22 phyla and 344 genera were found in the midgut contents. This evidence from the two silkworms suggests that the bacterial composition and diversity in the midgut are more diverse than those in the midgut contents. Principal component analysis revealed a significant difference in the bacterial community structure between the midgut and midgut contents of B. mori. To our knowledge, this is the first study to compare the bacterial communities between the midgut and midgut contents in insects, and the results will provide useful information for probing the functional differentiation within the midgut in the future.
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Li G, Xia X, Zhao S, Shi M, Liu F, Zhu Y. The physiological and toxicological effects of antibiotics on an interspecies insect model. CHEMOSPHERE 2020; 248:126019. [PMID: 32007775 DOI: 10.1016/j.chemosphere.2020.126019] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Revised: 01/22/2020] [Accepted: 01/23/2020] [Indexed: 06/10/2023]
Abstract
Silkworm (Bombyx mori L.) has a clear genetic background, parts of which are highly homologous to certain genes related to human hereditary diseases. Thus, the species presents an excellent interspecies model for drug screening and microbe-host interaction studies. Chloramphenicol (CAM) and vancomycin (VCM) are antibiotics commonly used to treat specific bacterial infections in medical care, animal husbandry, and agriculture. However, inappropriate dosages and prolonged therapy increase their risk of toxicity. In this work, we investigated the physiological and toxicological responses of silkworm to combined oral administration of CAM and VCM. Results showed that antibiotics promote the feeding behavior of silkworm and significantly reduce (P < 0.05) intestinal cultivable bacterial counts. Moreover, antibiotics decreased the antioxidant enzyme activities of superoxide dismutase, catalase, glutathione S-transferase, and thioredoxin reductase and caused oxidative damage to the silkworm intestine; the degree of damage was confirmed by histopathology analysis. The gene expression levels of antimicrobial peptides (attacin, lysozyme, and cecropins) were also perturbed by antibiotics. After antibiotic exposure, 16S rRNA metagenomic sequencing revealed increases in the relative abundance of Sphingobium, Burkholderia, Barnesiella, Bacteroides, Bradyrhizobium, Acinetobacter, Phenylobacterium, Plesiomonas, Escherichia/Shigella, and unclassified bacteria, as well as a reduction of Enterococcus. The metabolic and functional profiles of intestinal microbiota, particularly metabolic processes, such as energy, cofactors and vitamins, lipid, amino acid, and carbohydrate metabolisms, changed after antibiotic exposure. In conclusion, our findings reveal that antibiotics exert substantial effects on silkworm. The present study may promote the applications of silkworm as an interspecies model in the medical and pharmaceutical fields.
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Affiliation(s)
- Guannan Li
- State Key Laboratory of Silkworm Genome Biology, College of Biotechnology, Southwest University, Chongqing, 400716, China.
| | - Xuejuan Xia
- Food Science and Technology Programme, Department of Chemistry, National University of Singapore, Singapore, 117546, Singapore
| | - Shan Zhao
- State Key Laboratory of Silkworm Genome Biology, College of Biotechnology, Southwest University, Chongqing, 400716, China
| | - Min Shi
- State Key Laboratory of Silkworm Genome Biology, College of Biotechnology, Southwest University, Chongqing, 400716, China
| | - Fengdan Liu
- State Key Laboratory of Silkworm Genome Biology, College of Biotechnology, Southwest University, Chongqing, 400716, China
| | - Yong Zhu
- State Key Laboratory of Silkworm Genome Biology, College of Biotechnology, Southwest University, Chongqing, 400716, China.
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Miao L, Gong Y, Li H, Xie C, Xu Q, Dong X, Elwan HAM, Zou X. Alterations in cecal microbiota and intestinal barrier function of laying hens fed on fluoride supplemented diets. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 193:110372. [PMID: 32114238 DOI: 10.1016/j.ecoenv.2020.110372] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2019] [Revised: 02/19/2020] [Accepted: 02/21/2020] [Indexed: 06/10/2023]
Abstract
The objective of this study was to investigate the effects of fluorine at levels of 31, 431, 1237 mg/kg feed on cecum microbe, short-chain fatty acids (SCFAs) and intestinal barrier function of laying hens. The results showed that the intestinal morphology and ultrastructure were damaged by dietary high F intake. The mRNA expression levels of zonula occludens-1, zonula occludens-2, claudin-1, and claudin-4 were decreased in jejunum and ileum. However, the concentrations of serum diamine oxidase, and D-lactic acid and intestinal contents of interleukin 1 beta, interleukin 6, and Tumor necrosis factor-alpha were increased. Consistent with this, dietary high F intake altered the cecum microbiota, with increasing the concentration of pathogens, such as Proteobacteria and Escherichia-Shigella, as well as, decreasing the contents of beneficial bacteria, such as Lactobacillus, and expectedly, reduced the SCFAs concentrations. In conclusion, the actual results confirmed that (1) high dietary F intake could damage the intestinal structure and function, with impaired intestinal barrier and intestinal inflammation, and (2) destroy the cecum microbial homeostasis, and decrease the concentrations of SCFAs, which aggravate the incidence of intestinal inflammation in laying hens.
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Affiliation(s)
- Liping Miao
- Key Laboratory of Animal Nutrition and Feed Science in East China, College of Animal Sciences, Zhejiang University, 310058, Hangzhou, China
| | - Yujie Gong
- Key Laboratory of Animal Nutrition and Feed Science in East China, College of Animal Sciences, Zhejiang University, 310058, Hangzhou, China
| | - Huaiyu Li
- Key Laboratory of Animal Nutrition and Feed Science in East China, College of Animal Sciences, Zhejiang University, 310058, Hangzhou, China
| | - Chao Xie
- Key Laboratory of Animal Nutrition and Feed Science in East China, College of Animal Sciences, Zhejiang University, 310058, Hangzhou, China
| | - Qianqian Xu
- Key Laboratory of Animal Nutrition and Feed Science in East China, College of Animal Sciences, Zhejiang University, 310058, Hangzhou, China
| | - Xinyang Dong
- Key Laboratory of Animal Nutrition and Feed Science in East China, College of Animal Sciences, Zhejiang University, 310058, Hangzhou, China
| | - Hamada A M Elwan
- Key Laboratory of Animal Nutrition and Feed Science in East China, College of Animal Sciences, Zhejiang University, 310058, Hangzhou, China; Animal and Poultry Production Department, Faculty of Agriculture, Minia University, 61519, El-Minya, Egypt
| | - Xiaoting Zou
- Key Laboratory of Animal Nutrition and Feed Science in East China, College of Animal Sciences, Zhejiang University, 310058, Hangzhou, China.
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Wang HW, Miao CY, Liu J, Zhang Y, Zhu SQ, Zhou BH. Fluoride-induced rectal barrier damage and microflora disorder in mice. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:7596-7607. [PMID: 31885060 DOI: 10.1007/s11356-019-07201-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Accepted: 11/27/2019] [Indexed: 06/10/2023]
Abstract
Intestinal microflora plays a key role in maintaining the homeostasis between immune and host health. Here, we reported the fluoride-induced changes of rectal structure and microflora in mice. The morphology of rectal tissue was observed by hematoxylin and eosin staining. The rectal development parameters (the thickness of mucosa, intestinal gland and muscle layer) were evaluated. The proliferation of rectal epithelial cells was evaluated via BrdU labeling. The distribution of goblet, glycoprotein and mast cell were evaluated by specific staining. Rectal microflora was detected using 16S rRNA high-throughput sequencing. The results showed that the rectal structure was seriously damaged and the proliferation of rectal epithelial cells was significantly inhibited by fluoride. The distribution of goblet cells, glycoprotein and mast cells decreased significantly after fluoride exposure. The relative richness of microfloras was changed after fluoride treatment, such as increased Bacteroidetes and decreased Firmicutes. In summary, this study indicated that excessive fluoride damages the intestinal structure, disturbs the intestinal micro-ecology and causes intestinal microflora disorder in mice. Findings mentioned in the present study enrich a new scope for elucidating fluoride toxicity from intestinal homeostasis.
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Affiliation(s)
- Hong-Wei Wang
- Henan Key Laboratory of Environmental and Animal Product Safety, Henan University of Science and Technology, Kaiyuan Avenue 263, Luoyang, 471000, Henan, People's Republic of China
| | - Cheng-Yi Miao
- Henan Key Laboratory of Environmental and Animal Product Safety, Henan University of Science and Technology, Kaiyuan Avenue 263, Luoyang, 471000, Henan, People's Republic of China
| | - Jing Liu
- Henan Key Laboratory of Environmental and Animal Product Safety, Henan University of Science and Technology, Kaiyuan Avenue 263, Luoyang, 471000, Henan, People's Republic of China
| | - Yan Zhang
- Henan Key Laboratory of Environmental and Animal Product Safety, Henan University of Science and Technology, Kaiyuan Avenue 263, Luoyang, 471000, Henan, People's Republic of China
| | - Shi-Quan Zhu
- Henan Key Laboratory of Environmental and Animal Product Safety, Henan University of Science and Technology, Kaiyuan Avenue 263, Luoyang, 471000, Henan, People's Republic of China
| | - Bian-Hua Zhou
- Henan Key Laboratory of Environmental and Animal Product Safety, Henan University of Science and Technology, Kaiyuan Avenue 263, Luoyang, 471000, Henan, People's Republic of China.
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Li M, Li F, Lu Z, Fang Y, Qu J, Mao T, Wang H, Chen J, Li B. Effects of TiO 2 nanoparticles on intestinal microbial composition of silkworm, Bombyx mori. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 704:135273. [PMID: 31806321 DOI: 10.1016/j.scitotenv.2019.135273] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Revised: 10/18/2019] [Accepted: 10/27/2019] [Indexed: 06/10/2023]
Abstract
The widespread use of nanomaterials has raised concerns about the potential impact of nanoparticles on human health and the natural environment. Although high doses of TiO2 nanoparticles (NPs) are toxic to animals, low doses of TiO2 NPs have been shown to benefit their growth and immune functions. Intestinal microorganisms are critical in maintaining the normal life activities and ensuring the health of their host. The intestinal microorganisms of lepidopteran insects can promote growth and development, foster insecticide resistance, and improve resilience against diseases. However, to date, there is no report on the effects of TiO2 NPs on the intestinal microbiota of lepidopteran insects. In this work, we examined the effects of a low dose of TiO2 NPs (5 mg/L) on the intestinal microbiota of silkworm (Bombyx mori). The results showed that the exposure to TiO2 NPs did not alter the dominant species of intestinal microbiota significantly, but changed the abundance of individual species of intestinal microorganisms. Specifically, exposure to TiO2 NPs increased the uniformity of intestinal microorganisms. The abundance of Lachnospiraceae_NK4A136_group, involved in the metabolism of nutrients, as well as the abundance of Pseudomonas and Sphingomonas, both involved in detoxification and disease resistance, was increased. Meanwhile, among the non-dominant species, the conditional pathogenic bacteria Serratia exhibited decreased abundance. In addition, exposure to TiO2 NPs also increased the abundance of norank_f_Bacteroidales_S24-7_group, which could help relieve inflammation and regulate immune functions. The current study is the first to report the effects of TiO2 NPs on the intestinal microbiota of lepidopteran insects. The results demonstrated that TiO2 NPs could alter the composition of the intestinal microbiota of B. mori, and thus promote its growth and development, regulate its immune functions, and enhance its resistance to insecticide.
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Affiliation(s)
- Mengxue Li
- School of Basic Medicine and Biological Sciences, Soochow University, Suzhou, Jiangsu 215123, PR China
| | - Fanchi Li
- School of Basic Medicine and Biological Sciences, Soochow University, Suzhou, Jiangsu 215123, PR China; Sericulture Institute of Soochow University, Suzhou, Jiangsu 215123, PR China
| | - Zhengting Lu
- School of Basic Medicine and Biological Sciences, Soochow University, Suzhou, Jiangsu 215123, PR China
| | - Yilong Fang
- School of Basic Medicine and Biological Sciences, Soochow University, Suzhou, Jiangsu 215123, PR China
| | - Jianwei Qu
- School of Basic Medicine and Biological Sciences, Soochow University, Suzhou, Jiangsu 215123, PR China
| | - Tingting Mao
- School of Basic Medicine and Biological Sciences, Soochow University, Suzhou, Jiangsu 215123, PR China
| | - Hui Wang
- School of Basic Medicine and Biological Sciences, Soochow University, Suzhou, Jiangsu 215123, PR China
| | - Jian Chen
- School of Basic Medicine and Biological Sciences, Soochow University, Suzhou, Jiangsu 215123, PR China
| | - Bing Li
- School of Basic Medicine and Biological Sciences, Soochow University, Suzhou, Jiangsu 215123, PR China; Sericulture Institute of Soochow University, Suzhou, Jiangsu 215123, PR China.
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RNA-Seq comparative analysis reveals the response of Enterococcus faecalis TV4 under fluoride exposure. Gene 2020; 726:144197. [DOI: 10.1016/j.gene.2019.144197] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2019] [Revised: 10/08/2019] [Accepted: 10/20/2019] [Indexed: 12/14/2022]
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Li G, Zhang X, Qian H, Liu M, Zhao G, Xu A. Gas Chromatography-Mass Spectrometry Based Midgut Metabolomics Reveals the Metabolic Perturbations under NaF Stress in Bombyx mori. INSECTS 2019; 11:insects11010017. [PMID: 31878123 PMCID: PMC7023488 DOI: 10.3390/insects11010017] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2019] [Revised: 12/16/2019] [Accepted: 12/20/2019] [Indexed: 02/01/2023]
Abstract
Fluoride tolerance is an important economic trait in sericulture, especially in some industrial development regions. Analyses of physiological changes involving structural damage to the insect body and molecular analyses of some related genes have focused on this area; however, the changes that occur at the metabolic level of silkworms after eating fluoride-contaminated mulberry leaves remain unclear. Here, metabonomic analysis was conducted using gas chromatography-mass spectrometry (GC-MS) to analyze the changes in midgut tissue after NaF stress using silkworm strains 733xin (susceptible stain) and T6 (strain resistant to fluoride), which were previously reported by our laboratory. Differential metabolomics analysis showed that both T6 and 733xin strains displayed complex responses after exposure to 200 mg/kg NaF. The purine metabolism and arginine and proline metabolic pathways of fluoride-tolerant strains reached significant levels, among which 3′-adenylic acid and hypoxanthine were significantly upregulated, whereas guanine, allantoic acid, xanthine, N-acetyl-L-glutamic acid, and pyruvate were significantly downregulated. These metabolic pathways may be related to the fluoride tolerance mechanism of NaF poisoning and tolerant strains.
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Affiliation(s)
- Gang Li
- The Sericultural Research Institute, Jiangsu University of Science and Technology, Zhenjiang 212003, China
- The key Laboratory of silkworm and mulberry genetic improvement, Ministry of Agriculture, Chinese Academy of Agricultural Science, Zhenjiang 212018, China
- Correspondence: (G.L.); (A.X.)
| | - Xiao Zhang
- The Sericultural Research Institute, Jiangsu University of Science and Technology, Zhenjiang 212003, China
| | - Heying Qian
- The Sericultural Research Institute, Jiangsu University of Science and Technology, Zhenjiang 212003, China
- The key Laboratory of silkworm and mulberry genetic improvement, Ministry of Agriculture, Chinese Academy of Agricultural Science, Zhenjiang 212018, China
| | - Mingzhu Liu
- The key Laboratory of silkworm and mulberry genetic improvement, Ministry of Agriculture, Chinese Academy of Agricultural Science, Zhenjiang 212018, China
| | - Guodong Zhao
- The Sericultural Research Institute, Jiangsu University of Science and Technology, Zhenjiang 212003, China
- The key Laboratory of silkworm and mulberry genetic improvement, Ministry of Agriculture, Chinese Academy of Agricultural Science, Zhenjiang 212018, China
| | - Anying Xu
- The Sericultural Research Institute, Jiangsu University of Science and Technology, Zhenjiang 212003, China
- The key Laboratory of silkworm and mulberry genetic improvement, Ministry of Agriculture, Chinese Academy of Agricultural Science, Zhenjiang 212018, China
- Correspondence: (G.L.); (A.X.)
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Effects of sialylated lactulose on the mouse intestinal microbiome using Illumina high-throughput sequencing. Appl Microbiol Biotechnol 2019; 103:9067-9076. [DOI: 10.1007/s00253-019-10169-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 09/12/2019] [Accepted: 10/08/2019] [Indexed: 01/19/2023]
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18
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Dong HL, Zhang SX, Chen ZH, Tao H, Li X, Qiu JF, Cui WZ, Sima YH, Cui WZ, Xu SQ. Differences in gut microbiota between silkworms ( Bombyx mori) reared on fresh mulberry ( Morus alba var. multicaulis) leaves or an artificial diet. RSC Adv 2018; 8:26188-26200. [PMID: 35541943 PMCID: PMC9082819 DOI: 10.1039/c8ra04627a] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Accepted: 07/04/2018] [Indexed: 12/27/2022] Open
Abstract
Artificial diets for silkworms have many potential applications and they are important in sericulture. However, the challenges of weak larvae and low silk protein synthesis efficiency in silkworms reared on artificial diets have not been resolved. Here, we used high-throughput sequencing to analyse the differences between the gut microbiota of 5th-instar larvae reared on mulberry leaves and larvae reared on an artificial diet. The results showed that at the phylum level, Cyanobacteria, Firmicutes, Proteobacteria, Bacteroidetes and Actinobacteria are the dominant bacteria in the intestines of silkworm larvae of all the strains. But the abundance of dominant bacteria in the gut microbiota differed between the silkworm strains that were reared on mulberry leaves, as well as between the silkworm strains that were reared on the artificial diet, while the gut microbiota diversity was lower in the silkworm strains that were reared on the artificial diet. Prediction of the functions of the gut microbiota in the hosts indicated that there was no significant difference between the silkworm strains that were reared on mulberry leaves, while there were significant differences between silkworm strains reared on the artificial diet. When the silkworm diet changed from mulberry leaves to the artificial diet, changes in gut microbiota in the silkworms affected host nutrient metabolism and immune resistance. These changes may be related to the adaptation of silkworms to their long evolutionary history of eating mulberry leaves.
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Affiliation(s)
- Hui-Ling Dong
- School of Biology and Basic Medical Sciences, Medical College, Soochow University Suzhou 215123 China
- Institute of Agricultural Biotechnology & Ecology (IABE), Soochow University Suzhou 215123 China
| | - Sheng-Xiang Zhang
- College of Forestry, Shandong Agricultural University Taian Shandong 271018 China
| | - Zhuo-Hua Chen
- School of Biology and Basic Medical Sciences, Medical College, Soochow University Suzhou 215123 China
- Institute of Agricultural Biotechnology & Ecology (IABE), Soochow University Suzhou 215123 China
| | - Hui Tao
- School of Biology and Basic Medical Sciences, Medical College, Soochow University Suzhou 215123 China
- Institute of Agricultural Biotechnology & Ecology (IABE), Soochow University Suzhou 215123 China
| | - Xue Li
- School of Biology and Basic Medical Sciences, Medical College, Soochow University Suzhou 215123 China
- Institute of Agricultural Biotechnology & Ecology (IABE), Soochow University Suzhou 215123 China
| | - Jian-Feng Qiu
- School of Biology and Basic Medical Sciences, Medical College, Soochow University Suzhou 215123 China
- Institute of Agricultural Biotechnology & Ecology (IABE), Soochow University Suzhou 215123 China
| | - Wen-Zhao Cui
- School of Biology and Basic Medical Sciences, Medical College, Soochow University Suzhou 215123 China
| | - Yang-Hu Sima
- School of Biology and Basic Medical Sciences, Medical College, Soochow University Suzhou 215123 China
- Institute of Agricultural Biotechnology & Ecology (IABE), Soochow University Suzhou 215123 China
- National Engineering Laboratory for Modern Silk (NEAER), Soochow University Suzhou 215123 China
| | - Wei-Zheng Cui
- College of Forestry, Shandong Agricultural University Taian Shandong 271018 China
| | - Shi-Qing Xu
- School of Biology and Basic Medical Sciences, Medical College, Soochow University Suzhou 215123 China
- Institute of Agricultural Biotechnology & Ecology (IABE), Soochow University Suzhou 215123 China
- National Engineering Laboratory for Modern Silk (NEAER), Soochow University Suzhou 215123 China
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Chen J, Zhang L, Hu Y, Huang W, Niu Z, Sun J. Bacterial community shift and incurred performance in response to in situ microbial self-assembly graphene and polarity reversion in microbial fuel cell. BIORESOURCE TECHNOLOGY 2017; 241:220-227. [PMID: 28570887 DOI: 10.1016/j.biortech.2017.05.123] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2017] [Revised: 05/17/2017] [Accepted: 05/18/2017] [Indexed: 06/07/2023]
Abstract
In this work, bacterial community shift and incurred performance of graphene modified bioelectrode (GM-BE) in microbial fuel cell (MFC) were illustrated by high throughput sequencing technology and electrochemical analysis. The results showed that Firmicutes occupied 48.75% in graphene modified bioanode (GM-BA), while Proteobacteria occupied 62.99% in graphene modified biocathode (GM-BC), both were dominant bacteria in phylum level respectively. Typical exoelectrogens, including Geobacter, Clostridium, Pseudomonas, Geothrix and Hydrogenophaga, were counted 26.66% and 17.53% in GM-BA and GM-BC. GM-BE was tended to decrease the bacterial diversity and enrich the dominant species. Because of the enrichment of exoelectrogens and excellent electrical conductivity of graphene, the maximum power density of MFC with GM-BA and GM-BC increased 33.1% and 21.6% respectively, and the transfer resistance decreased 83.8% and 73.6% compared with blank bioelectrode. This study aimed to enrich the microbial study in MFC and broaden the development and application for bioelectrode.
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Affiliation(s)
- Junfeng Chen
- The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou 510006, PR China
| | - Lihua Zhang
- The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou 510006, PR China
| | - Yongyou Hu
- The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou 510006, PR China.
| | - Wantang Huang
- The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou 510006, PR China
| | - Zhuyu Niu
- The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou 510006, PR China
| | - Jian Sun
- School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China
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Gu JF, Su SL, Guo JM, Zhu Y, Zhao M, Duan JA. The aerial parts of Salvia miltiorrhiza Bge. strengthen intestinal barrier and modulate gut microbiota imbalance in streptozocin-induced diabetic mice. J Funct Foods 2017. [DOI: 10.1016/j.jff.2017.06.010] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
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Xia X, Li G, Ding Y, Ren T, Zheng J, Kan J. Effect of Whole Grain Qingke (Tibetan Hordeum vulgare L. Zangqing 320) on the Serum Lipid Levels and Intestinal Microbiota of Rats under High-Fat Diet. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:2686-2693. [PMID: 28301146 DOI: 10.1021/acs.jafc.6b05641] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
This study investigated the hypolipidemic effect of whole grain Qingke (WGQ) and its influence on intestinal microbiota. Changes in the serum lipid, intestinal environment, and microbiota of Sprague-Dawley rats fed high-fat diets supplemented with different doses of WGQ were determined. Results showed that high doses of WGQ significantly decreased (P < 0.05) the Lee's index, serum total cholesterol, low-density lipoprotein cholesterol, and non-high-density lipoprotein cholesterol levels whereas they increased the body weight of the rats. Cecal weight and short-chain fatty acid (SCFA) concentration increased with increasing WGQ dose. An Illumina-based sequencing approach showed that the relative abundance of putative SCFA-producing bacteria Prevotella and Anaerovibrio increased in the rats fed the WGQ diet. Principal component analysis revealed a significant difference in intestinal microbiota composition after the administration of the WGQ diet. These findings provide insights into the contribution of the intestinal microbiota to the hypolipidemic effect of WGQ.
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Affiliation(s)
- Xuejuan Xia
- College of Food Science, Southwest University , Chongqing 400715, China
| | - Guannan Li
- College of Biotechnology, Southwest University , Chongqing 400715, China
| | - Yongbo Ding
- College of Food Science, Southwest University , Chongqing 400715, China
| | - Tingyuan Ren
- College of Food Science, Southwest University , Chongqing 400715, China
| | - Jiong Zheng
- College of Food Science, Southwest University , Chongqing 400715, China
| | - Jianquan Kan
- College of Food Science, Southwest University , Chongqing 400715, China
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