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Baranova MN, Pilipenko EA, Gabibov AG, Terekhov SS, Smirnov IV. Animal Microbiomes as a Source of Novel Antibiotic-Producing Strains. Int J Mol Sci 2023; 25:537. [PMID: 38203702 PMCID: PMC10779147 DOI: 10.3390/ijms25010537] [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: 11/29/2023] [Revised: 12/25/2023] [Accepted: 12/27/2023] [Indexed: 01/12/2024] Open
Abstract
Natural compounds continue to serve as the most fruitful source of new antimicrobials. Analysis of bacterial genomes have revealed that the biosynthetic potential of antibiotic producers by far exceeds the number of already discovered structures. However, due to the repeated discovery of known substances, it has become necessary to change both approaches to the search for antibiotics and the sources of producer strains. The pressure of natural selection and the diversity of interactions in symbiotic communities make animal microbiomes promising sources of novel substances. Here, microorganisms associated with various animals were examined in terms of their antimicrobial agents. The application of alternative cultivation techniques, ultrahigh-throughput screening, and genomic analysis facilitated the investigation of compounds produced by unique representatives of the animal microbiota. We believe that new strategies of antipathogen defense will be discovered by precisely studying cell-cell and host-microbe interactions in microbiomes in the wild.
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Affiliation(s)
- Margarita N. Baranova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, 117997 Moscow, Russia; (M.N.B.); (A.G.G.)
| | - Ekaterina A. Pilipenko
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, 117997 Moscow, Russia; (M.N.B.); (A.G.G.)
| | - Alexander G. Gabibov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, 117997 Moscow, Russia; (M.N.B.); (A.G.G.)
- Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia
| | - Stanislav S. Terekhov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, 117997 Moscow, Russia; (M.N.B.); (A.G.G.)
- Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia
| | - Ivan V. Smirnov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, 117997 Moscow, Russia; (M.N.B.); (A.G.G.)
- Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia
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Elsadek MM, Zhu W, Wang S, Wang X, Guo Z, Lin L, Wang G, Wang Q, Chen Y, Zhang D. Beneficial effects of indigenous Bacillus spp. on growth, antioxidants, immunity and disease resistance of Rhynchocypris lagowskii. FISH & SHELLFISH IMMUNOLOGY 2023; 141:109047. [PMID: 37673385 DOI: 10.1016/j.fsi.2023.109047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 08/29/2023] [Accepted: 08/31/2023] [Indexed: 09/08/2023]
Abstract
This study aimed to investigate the effect of Bacillus aryabhattai (LSG3-7) and Bacillus mojavensis (LSG3-8) on growth performance, antioxidant capacity, and immune response in Rhynchocypris lagowskii (Dybowski, 1869), at the trial and challenge periods. A 630 healthy fish (10.76 ± 0.05) were randomly divided into six groups: control group (D1) was fed the basal diet, D2 and D3 were supplemented with LSG 3-7 and LSG3-8 (1 × 108 CFU/g) for both of them, whereas D4 was supplemented with a mixture of both bacteria (0.5 × 108 CFU/g each), and D5 was supplemented with LSG3-7 0.75 × 108 CFU/g + LSG3-8 0.25 × 108 CFU/g, and D6 supplemented with LSG3-7 0.25 × 108 CFU/g + LSG3-8 0.75 × 108 CFU/g. After the trial, Aeromonas hydrophila was used in a challenge test for 14 days. Treatments showed significant differences (p < 0.05) in growth performance and antioxidant capacity (CAT, CuZn-SOD, GPX) in the liver and intestine compared to the control. The antioxidant-related genes CAT, CuZn-SOD, GPX, and Nrf2 in the liver and intestine showed upregulation compared with the control group. Serum IgM, LZM, C3, C4, and AKP showed a favorable superiority (p < 0.05) in treatments (D2 - D6) at the trial and challenge test compared to controls. In parallel, immune-related genes (IgM, NF-κB, TLR-1, TLR-2, and MyD88) showed an up-regulated level (p < 0.05) in treatments (D2 - D6) compared to the control. In addition, pro-inflammatory cytokines (IL-1, TNF-α) showed a downregulated level in treatments (D2 - D6). After the challenge test, the immune-related genes in the liver and muscle showed an up-regulated level in treatments compared to the controls. The survival rate showed a significant increase (p < 0.05) in the treatment groups (D2 - D6) compared to the control. Overall, individuals and the bacterial mixture of B. aryabhattai and B. mojavensis could improve the growth performance, antioxidant capacity, immune capacity, and survival rate of R. lagowskii and prevent side effects of A. hydrophila. However, B. mojavensis showed a slight improvement compared to B. aryabhattai without a significant difference between them.
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Affiliation(s)
- Mahmoud M Elsadek
- College of Animal Science and Technology, Key Laboratory for Animal Production Quality and Safety of Ministry of Education, Jilin Provincial Key Laboratory of Animal Nutrition and Feed Science, Jilin Agricultural University, Changchun, 130118, China; Department of Fish Production, Faculty of Agriculture, Al-Azhar University, Cairo, 11884, Egypt
| | - Wenli Zhu
- College of Animal Science and Technology, Key Laboratory for Animal Production Quality and Safety of Ministry of Education, Jilin Provincial Key Laboratory of Animal Nutrition and Feed Science, Jilin Agricultural University, Changchun, 130118, China
| | - Sibu Wang
- College of Animal Science and Technology, Key Laboratory for Animal Production Quality and Safety of Ministry of Education, Jilin Provincial Key Laboratory of Animal Nutrition and Feed Science, Jilin Agricultural University, Changchun, 130118, China
| | - Xin Wang
- College of Animal Science and Technology, Key Laboratory for Animal Production Quality and Safety of Ministry of Education, Jilin Provincial Key Laboratory of Animal Nutrition and Feed Science, Jilin Agricultural University, Changchun, 130118, China
| | - Zhixin Guo
- Tonghua Normal University, College of Life Science, Jilin, Tonghua, 134001, China
| | - Lili Lin
- Fishery Technical Extension Station of Jilin Province, Changchun, 130012, China
| | - Guiqin Wang
- College of Animal Science and Technology, Key Laboratory for Animal Production Quality and Safety of Ministry of Education, Jilin Provincial Key Laboratory of Animal Nutrition and Feed Science, Jilin Agricultural University, Changchun, 130118, China
| | - Qiuju Wang
- College of Animal Science and Technology, Key Laboratory for Animal Production Quality and Safety of Ministry of Education, Jilin Provincial Key Laboratory of Animal Nutrition and Feed Science, Jilin Agricultural University, Changchun, 130118, China
| | - Yuke Chen
- College of Animal Science and Technology, Key Laboratory for Animal Production Quality and Safety of Ministry of Education, Jilin Provincial Key Laboratory of Animal Nutrition and Feed Science, Jilin Agricultural University, Changchun, 130118, China.
| | - Dongming Zhang
- College of Animal Science and Technology, Key Laboratory for Animal Production Quality and Safety of Ministry of Education, Jilin Provincial Key Laboratory of Animal Nutrition and Feed Science, Jilin Agricultural University, Changchun, 130118, China; Changchun University of Architecture and Civil Engineering, Changchun, 130607, China.
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Martha-Lucero N, Viniegra-González G, González-Olivares L, Cruz-Guerrero A. Biofilm formation by agave epiphytic lactic acid bacteria fed with agave fructans. World J Microbiol Biotechnol 2023; 39:299. [PMID: 37667093 DOI: 10.1007/s11274-023-03749-3] [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: 06/29/2023] [Accepted: 08/31/2023] [Indexed: 09/06/2023]
Abstract
The aim of this work was to find out if biofilms can be made by lactic acid bacteria (LAB) isolated from agave plants using agave fructans as sole carbohydrate substrates or if it was necessary to use fructose as a breakdown product of such polymers. This is part of a research project geared to develop industrial lactic acid production from agave fructans, an abundant raw material in Mexico's agave plantations. Present results showed that nine strains of LAB isolated from Agave salmiana and belonging to genus Lacticaseibacillus and Enterococcus produced exopolysaccharides directly from agave fructans to a greater extent than with fructose. The best polysaccharide productions in planktonic cultures were Lacticaseibacillus paracasei strains DG2, DG3, DG4 and DG8. Furthermore, all nine LAB strains produced biofilms on polystyrene microplates, much better with agave fructans than with fructose. In most strains, biofilm formation was favored at pH from 6.0 to 6.5, except for strains DG7 and DG9 where pH 5.5 was optimal. Biofilm formation required between 3 and 5 days of incubation in all Lacticaseibacillus paracasei strains, whereas Enterococcus faecium required a little less of 3 days. Present results support the straight use of agave fructans to develop LAB biofilms using agave epiphytic bacteria. This finding simplifies upstream processing of agave fructans to be used for future lactic acid fermentation in LAB biofilm reactors.
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Affiliation(s)
- Nayeli Martha-Lucero
- Departamento de Biotecnología, Universidad Autónoma Metropolitana, Iztapalapa, San Rafael Atlixco 186, Ciudad de México, México
| | - Gustavo Viniegra-González
- Departamento de Biotecnología, Universidad Autónoma Metropolitana, Iztapalapa, San Rafael Atlixco 186, Ciudad de México, México
| | - Luis González-Olivares
- Universidad Autonoma del Estado de Hidalgo, Área académica de química, Mineral de la Reforma, Hgo., México
| | - Alma Cruz-Guerrero
- Departamento de Biotecnología, Universidad Autónoma Metropolitana, Iztapalapa, San Rafael Atlixco 186, Ciudad de México, México.
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