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Kim KH, Kim JM, Baek JH, Jeong SE, Kim H, Yoon HS, Jeon CO. Metabolic relationships between marine red algae and algae-associated bacteria. MARINE LIFE SCIENCE & TECHNOLOGY 2024; 6:298-314. [PMID: 38827136 PMCID: PMC11136935 DOI: 10.1007/s42995-024-00227-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Accepted: 12/28/2023] [Indexed: 06/04/2024]
Abstract
Mutualistic interactions between marine phototrophs and associated bacteria are an important strategy for their successful survival in the ocean, but little is known about their metabolic relationships. Here, bacterial communities in the algal sphere (AS) and bulk solution (BS) of nine marine red algal cultures were analyzed, and Roseibium and Phycisphaera were identified significantly more abundantly in AS than in BS. The metabolic features of Roseibium RMAR6-6 (isolated and genome-sequenced), Phycisphaera MAG 12 (obtained by metagenomic sequencing), and a marine red alga, Porphyridium purpureum CCMP1328 (from GenBank), were analyzed bioinformatically. RMAR6-6 has the genetic capability to fix nitrogen and produce B vitamins (B1, B2, B5, B6, B9, and B12), bacterioferritin, dimethylsulfoniopropionate (DMSP), and phenylacetate that may enhance algal growth, whereas MAG 12 may have a limited metabolic capability, not producing vitamins B9 and B12, DMSP, phenylacetate, and siderophores, but with the ability to produce bacitracin, possibly modulating algal microbiome. P. purpureum CCMP1328 lacks the genetic capability to fix nitrogen and produce vitamin B12, DMSP, phenylacetate, and siderophore. It was shown that the nitrogen-fixing ability of RMAR6-6 promoted the growth of P. purpureum, and DMSP reduced the oxidative stress of P. purpureum. The metabolic interactions between strain RMAR6-6 and P. purpureum CCMP1328 were also investigated by the transcriptomic analyses of their monoculture and co-culture. Taken together, potential metabolic relationships between Roseibium and P. purpureum were proposed. This study provides a better understanding of the metabolic relationships between marine algae and algae-associated bacteria for successful growth. Supplementary Information The online version contains supplementary material available at 10.1007/s42995-024-00227-z.
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Affiliation(s)
- Kyung Hyun Kim
- Department of Biological Sciences and Biotechnology, Hannam University, Daejon, 34054 Republic of Korea
| | - Jeong Min Kim
- Department of Life Science, Chung-Ang University, Seoul, 06974 Republic of Korea
| | - Ju Hye Baek
- Department of Life Science, Chung-Ang University, Seoul, 06974 Republic of Korea
| | - Sang Eun Jeong
- Department of Life Science, Chung-Ang University, Seoul, 06974 Republic of Korea
| | - Hocheol Kim
- Department of Biological Sciences, Sungkyunkwan University, Suwon, 16419 Republic of Korea
| | - Hwan Su Yoon
- Department of Biological Sciences, Sungkyunkwan University, Suwon, 16419 Republic of Korea
| | - Che Ok Jeon
- Department of Life Science, Chung-Ang University, Seoul, 06974 Republic of Korea
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Adouane E, Mercier C, Mamelle J, Willocquet E, Intertaglia L, Burgunter-Delamare B, Leblanc C, Rousvoal S, Lami R, Prado S. Importance of quorum sensing crosstalk in the brown alga Saccharina latissima epimicrobiome. iScience 2024; 27:109176. [PMID: 38433891 PMCID: PMC10906538 DOI: 10.1016/j.isci.2024.109176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 12/07/2023] [Accepted: 02/06/2024] [Indexed: 03/05/2024] Open
Abstract
Brown macroalgae are colonized by diverse microorganisms influencing the physiology of their host. However, cell-cell interactions within the surface microbiome (epimicrobiome) are largely unexplored, despite the significance of specific chemical mediators in maintaining host-microbiome homeostasis. In this study, by combining liquid chromatography coupled to mass spectrometry (LC-MS) analysis and bioassays, we demonstrated that the widely diverse fungal epimicrobiota of the brown alga Saccharina latissima can affect quorum sensing (QS), a type of cell-cell interaction, as well as bacterial biofilm formation. We also showed the ability of the bacterial epimicrobiota to form and inhibit biofilm growth, as well as to activate or inhibit QS pathways. Overall, we demonstrate that QS and anti-QS compounds produced by the epimicrobiota are key metabolites in these brown algal epimicrobiota communities and highlight the importance of exploring this epimicrobiome for the discovery of new bioactive compounds, including potentially anti-QS molecules with antifouling properties.
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Affiliation(s)
- Emilie Adouane
- Muséum National d’Histoire Naturelle, Unité Molécules de Communication et Adaptation des Micro-Organismes MCAM, UMR 7245, CNRS, Sorbonne Université, 75005 Paris, France
- Sorbonne Université, CNRS, UAR 3579 Laboratoire de Biodiversité et Biotechnologies Microbiennes LBBM, Observatoire Océanologique, 66650 Banyuls-sur-Mer, France
| | - Camille Mercier
- Sorbonne Université, CNRS, UAR 3579 Laboratoire de Biodiversité et Biotechnologies Microbiennes LBBM, Observatoire Océanologique, 66650 Banyuls-sur-Mer, France
| | - Jeanne Mamelle
- Sorbonne Université, CNRS, UAR 3579 Laboratoire de Biodiversité et Biotechnologies Microbiennes LBBM, Observatoire Océanologique, 66650 Banyuls-sur-Mer, France
| | - Emma Willocquet
- Sorbonne Université, CNRS, UAR 3579 Laboratoire de Biodiversité et Biotechnologies Microbiennes LBBM, Observatoire Océanologique, 66650 Banyuls-sur-Mer, France
| | - Laurent Intertaglia
- Sorbonne Université, CNRS, Bio2Mar, Observatoire Océanologique, 66650 Banyuls-sur-Mer, France
| | - Bertille Burgunter-Delamare
- Biologie Intégrative des Modèles Marins, LBI2M (Sorbonne Université/CNRS), Station Biologique de Roscoff (SBR), 29680 Roscoff, France
| | - Catherine Leblanc
- Biologie Intégrative des Modèles Marins, LBI2M (Sorbonne Université/CNRS), Station Biologique de Roscoff (SBR), 29680 Roscoff, France
| | - Sylvie Rousvoal
- Biologie Intégrative des Modèles Marins, LBI2M (Sorbonne Université/CNRS), Station Biologique de Roscoff (SBR), 29680 Roscoff, France
| | - Raphaël Lami
- Sorbonne Université, CNRS, UAR 3579 Laboratoire de Biodiversité et Biotechnologies Microbiennes LBBM, Observatoire Océanologique, 66650 Banyuls-sur-Mer, France
| | - Soizic Prado
- Muséum National d’Histoire Naturelle, Unité Molécules de Communication et Adaptation des Micro-Organismes MCAM, UMR 7245, CNRS, Sorbonne Université, 75005 Paris, France
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3
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Akinyemi MO, Ogunremi OR, Adeleke RA, Ezekiel CN. Probiotic Potentials of Lactic Acid Bacteria and Yeasts from Raw Goat Milk in Nigeria. Probiotics Antimicrob Proteins 2024; 16:163-180. [PMID: 36520357 DOI: 10.1007/s12602-022-10022-w] [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] [Accepted: 11/28/2022] [Indexed: 12/23/2022]
Abstract
Probiotic microorganisms are incorporated in foods due to their numerous health benefits. We investigated lactic acid bacteria (LAB) and yeasts isolated from goat milk in Nigeria for novel probiotic strains. In this study, a total of 27 LAB and 23 yeast strains were assessed for their probiotic potentials. Only six LAB strains (Weissella cibaria GM 93m3, Weissella confusa GM 92m1, Pediococcus acidilactici GM 18a, Pediococcus pentosaceus GM 23d, Lactiplantibacillus pentosus GM 102s4, Limosilactobacillus fermentum GM 30m1) and four yeast strains (Candida tropicalis 12a, C. tropicalis 33d, Diutina rugosa 53b, and D. rugosa 77a) identified using partial 16S and 26S rDNA sequencing, respectively, showed survival at pH 2.5, 0.3% bile salt, and simulated gastrointestinal conditions and possessed auto-aggregative and hydrophobic properties, thus satisfying key in vitro criteria as probiotics. All LAB strains showed coaggregation properties and antimicrobial activities against pathogens. Pediococcus pentosaceus GM 23d recorded the strongest coaggregation percentage (34-94%) against 14 pathogens, while W. cibaria GM 93m3 showed the least (6-57%) against eight of the 14 pathogens. The whole cell and extracellular extracts of LAB and yeast strains, with the exception of D. rugosa 77a, had either 2,2-diphenyl-1-picryl-hydrazyl and/or hydroxyl radical scavenging activity. In conclusion, all six LAB and four yeast strains are important probiotic candidates that can be further investigated for use as functional starter cultures.
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Affiliation(s)
- Muiz O Akinyemi
- Department of Microbiology, Babcock University, Ilishan Remo, Ogun State, Nigeria
- Unit for Environmental Sciences and Management, North-West University, Potchefstroom, 2520, South Africa
| | - Omotade R Ogunremi
- Department of Biological Sciences, First Technical University, Ibadan, Oyo State, Nigeria
| | - Rasheed A Adeleke
- Unit for Environmental Sciences and Management, North-West University, Potchefstroom, 2520, South Africa
| | - Chibundu N Ezekiel
- Department of Microbiology, Babcock University, Ilishan Remo, Ogun State, Nigeria.
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Chukwudulue UM, Barger N, Dubovis M, Luzzatto Knaan T. Natural Products and Pharmacological Properties of Symbiotic Bacillota (Firmicutes) of Marine Macroalgae. Mar Drugs 2023; 21:569. [PMID: 37999393 PMCID: PMC10672036 DOI: 10.3390/md21110569] [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: 10/06/2023] [Revised: 10/24/2023] [Accepted: 10/25/2023] [Indexed: 11/25/2023] Open
Abstract
The shift from the terrestrial to the marine environment to discover natural products has given rise to novel bioactive compounds, some of which have been approved for human medicine. However, the ocean, which makes up nearly three-quarters of the Earth's surface, contains macro- and microorganisms whose natural products are yet to be explored. Among these underexplored marine organisms are macroalgae and their symbiotic microbes, such as Bacillota, a phylum of mostly Gram-positive bacteria previously known as Firmicutes. Macroalgae-associated Bacillota often produce chemical compounds that protect them and their hosts from competitive and harmful rivals. Here, we summarised the natural products made by macroalgae-associated Bacillota and their pharmacological properties. We discovered that these Bacillota are efficient producers of novel biologically active molecules. However, only a few macroalgae had been investigated for chemical constituents of their Bacillota: nine brown, five red and one green algae. Thus, Bacillota, especially from the marine habitat, should be investigated for potential pharmaceutical leads. Moreover, additional diverse biological assays for the isolated molecules of macroalgae Bacillota should be implemented to expand their bioactivity profiles, as only antibacterial properties were tested for most compounds.
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Affiliation(s)
| | | | | | - Tal Luzzatto Knaan
- Department of Marine Biology, The Charney School of Marine Sciences, University of Haifa, Mount Carmel, Haifa 103301, Israel; (U.M.C.); (N.B.); (M.D.)
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Nguyen D, Ovadia O, Guttman L. Temporal force governs the microbial assembly associated with Ulva fasciata (Chlorophyta) from an integrated multi-trophic aquaculture system. Front Microbiol 2023; 14:1223204. [PMID: 37869666 PMCID: PMC10585273 DOI: 10.3389/fmicb.2023.1223204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Accepted: 09/14/2023] [Indexed: 10/24/2023] Open
Abstract
Ulva spp., one of the most important providers of marine ecosystem services, has gained substantial attention lately in both ecological and applicational aspects. It is known that macroalgae and their associated microbial community form an inseparable unit whose intimate relationship can affect the wellbeing of both. Different cultivation systems, such as integrated multi-trophic aquaculture (IMTA), are assumed to impact Ulva bacterial community significantly in terms of compositional guilds. However, in such a highly dynamic environment, it is crucial to determine how the community dynamics change over time. In the current study, we characterized the microbiota associated with Ulva fasciata grown as a biofilter in an IMTA system in the Gulf of Aqaba (Eilat, Israel) over a developmental period of 5 weeks. The Ulva-associated microbial community was identified using the 16S rRNA gene amplicon sequencing technique, and ecological indices were further analyzed. The Ulva-associated microbiome revealed a swift change in composition along the temporal succession, with clusters of distinct communities for each timepoint. Proteobacteria, Bacteroidetes, Planctomycetes, and Deinococcus-Thermus, the most abundant phyla that accounted for up to 95% of all the amplicon sequence variants (ASVs) found, appeared in all weeks. Further analyses highlighted microbial biomarkers representing each timepoint and their characteristics. Finally, the presence of highly abundant species in Ulva microbiota yet underestimated in previous research (such as phyla Deinococcus-Thermus, families Saprospiraceae, Thiohalorhabdaceae, and Pirellulaceae) suggests that more attention should be paid to the temporal succession of the assembly of microbes inhabiting macroalgae in aquaculture, in general, and IMTA, in particular. Characterizing bacterial communities associated with Ulva fasciata from an IMTA system provided a better understanding of their associated microbial dynamics and revealed this macroalgae's adaptation to such a habitat.
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Affiliation(s)
- Dzung Nguyen
- Marine Biology and Biotechnology Program, Department of Life Sciences, Ben-Gurion University of the Negev, Eilat, Israel
- Israel Oceanographic and Limnological Research, The National Center for Mariculture, Eilat, Israel
| | - Ofer Ovadia
- Department of Life Sciences, Ben-Gurion University of the Negev, Be'er Sheva, Israel
| | - Lior Guttman
- Israel Oceanographic and Limnological Research, The National Center for Mariculture, Eilat, Israel
- Department of Life Sciences, Ben-Gurion University of the Negev, Be'er Sheva, Israel
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Kuba GM, Spalding HL, Hill-Spanik KM, Williams TM, Paiano MO, Sherwood AR, Hauk BB, Kosaki RK, Fullerton H. Characterization of macroalgal-associated microbial communities from shallow to mesophotic depths at Manawai, Papahānaumokuākea Marine National Monument, Hawai'i. PeerJ 2023; 11:e16114. [PMID: 37842050 PMCID: PMC10569167 DOI: 10.7717/peerj.16114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 08/27/2023] [Indexed: 10/17/2023] Open
Abstract
The Papahānaumokuākea Marine National Monument, Hawai'i, is one of the most isolated and protected archipelagos in the world, making it a natural laboratory to examine macroalgal-microbial diversity because of limited direct anthropogenic impacts. We collected the most abundant macroalgae from nine sites ranging from shallow subtidal (1.5 m) to mesophotic (75 m) depths around Manawai (Pearl and Hermes Atoll). We characterized the macroalgal bacterial communities via high-throughput amplicon sequencing and compared the influence of host phylum, species, site, and depth on these relationships at a single atoll. Ochrophyta species had the lowest bacterial diversity compared to Chlorophyta and Rhodophyta. Site and/or depth may influence the microbial community structure associated with Microdictyon setchellianum, indicating a possible disconnect of these microbial communities among habitats. Chondria tumulosa, a cryptogenic species with invasive traits, differed in associated microbiota compared to the native Laurencia galtsoffii, an alga from the same family collected at the same site and depth. While there was overlap of bacterial communities across sites for some algal species, the majority had minimal macroalgal-microbial community connectivity across Manawai. This mesophotic system, therefore, did not appear to be refugia for shallow water coral reefs at microscopic scales. Additional studies are required to identify other significant influences on microbial community variation.
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Affiliation(s)
- Gabrielle M. Kuba
- Department of Biology, College of Charleston, Charleston, SC, United States
| | | | - Kristina M. Hill-Spanik
- Department of Biology, Grice Marine Laboratory, College of Charleston, Charleston, SC, United States
| | - Taylor M. Williams
- Department of Biology, College of Charleston, Charleston, SC, United States
| | - Monica O. Paiano
- School of Life Sciences, University of Hawai‘i at Mānoa, Honolulu, HI, United States
| | - Alison R. Sherwood
- School of Life Sciences, University of Hawai‘i at Mānoa, Honolulu, HI, United States
| | - Brian B. Hauk
- Cooperative Institute for Marine and Atmospheric Research, University of Hawai‘i at Mānoa, Honolulu, HI, United States
- Papahānaumokuākea Marine National Monument, National Oceanic and Atmospheric Administration, Honolulu, HI, United States
| | - Randall K. Kosaki
- Papahānaumokuākea Marine National Monument, National Oceanic and Atmospheric Administration, Honolulu, HI, United States
- Center for the Exploration of Coral Reef Ecosystems (XCoRE), Bishop Museum, Honolulu, HI, United States
| | - Heather Fullerton
- Department of Biology, College of Charleston, Charleston, SC, United States
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Cheriet S, Lengliz S, Romdhani A, Hynds P, Abbassi MS, Ghrairi T. Selection and Characterization of Bacteriocinogenic Lactic Acid Bacteria from the Intestine of Gilthead Seabream ( Sparus aurata) and Whiting Fish ( Merlangius merlangus): Promising Strains for Aquaculture Probiotic and Food Bio-Preservation. Life (Basel) 2023; 13:1833. [PMID: 37763237 PMCID: PMC10532712 DOI: 10.3390/life13091833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 08/16/2023] [Accepted: 08/19/2023] [Indexed: 09/29/2023] Open
Abstract
This study sought to evaluate the probiotic properties and the food preservation ability of lactic acid bacteria isolates collected from the intestines of wild marine fishes (gilthead seabream (Sparus aurata) (n = 60) and whiting fish (Merlangius merlangus) (n = 40)) from the Mediterranean sea in the area of Mostaganem city, Algeria. Forty-two isolates were identified as: Enterococcus durans (n = 19), Enterococcus faecium (n = 15), Enterococcus faecalis (n = 4), Lactococcus lactis subp. lactis (n = 3), and Lactobacillus plantarum (n = 1). All isolates showed inhibition to at least one indicator strain, especially against Listeria monocytogenes, Staphylococcus aureus, Paenibacillus larvae, Vibrio alginolyticus, Enterococcus faecalis, Bacillus cereus, and Bacillus subtilis. In all collected isolates, PCR analysis of enterocin-encoding genes showed the following genes: entP (n = 21), ent1071A/B (n = 11), entB (n = 8), entL50A/B (n = 7), entAS48 (n = 5), and entX (n = 1). Interestingly, 15 isolates harbored more than one ent gene. Antimicrobial susceptibility, phenotypic virulence, and genes encoding virulence factors were investigated by PCR. Resistance to tetracycline (n = 8: tetL + tetK), erythromycin (n = 7: 5 ermA, 2 msrA, and 1 mef(A/E)), ciprofloxacin (n = 1), gentamicin (n = 1: aac(6')-aph(2″)), and linezolid (n = 1) were observed. Three isolates were gelatinase producers and eight were α-hemolytic. Three E. durans and one E. faecium harbored the hyl gene. Eight isolates showing safety properties (susceptible to clinically relevant antibiotics, free of genes encoding virulence factors) were tested to select probiotic candidates. They showed high tolerance to low pH and bile salt, hydrophobicity power, and co-culture ability. The eight isolates showed important phenotypic and genotypic traits enabling them to be promising probiotic candidates or food bio-conservers and starter cultures.
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Affiliation(s)
- Sarah Cheriet
- Institute of Veterinary Research of Tunisia, University of Tunis El Manar, Tunis 1006, Tunisia; (S.C.); (S.L.); (A.R.)
- Laboratory of Neurophysiology Cellular Physiopathology and Biomolecule Valorisation LR18ES03, Faculty of Sciences of Tunis, University Tunis El Manar, Tunis 2092, Tunisia;
| | - Sana Lengliz
- Institute of Veterinary Research of Tunisia, University of Tunis El Manar, Tunis 1006, Tunisia; (S.C.); (S.L.); (A.R.)
- Laboratory of Materials, Molecules and Application LR11ES22, Preparatory Institute for Scientific and Technical Studies, University of Carthage, Tunis 1054, Tunisia
| | - Amel Romdhani
- Institute of Veterinary Research of Tunisia, University of Tunis El Manar, Tunis 1006, Tunisia; (S.C.); (S.L.); (A.R.)
| | - Paul Hynds
- Environmental Sustainability and Health Institute (ESHI), Technological University Dublin, Grangegorman, Dublin 7, D07 H6K8 Dublin, Ireland;
| | - Mohamed Salah Abbassi
- Institute of Veterinary Research of Tunisia, University of Tunis El Manar, Tunis 1006, Tunisia; (S.C.); (S.L.); (A.R.)
- Research Laboratory «Antimicrobial Resistance» LR99ES09, Faculty of Medicine of Tunis, University of Tunis El Manar, Tunis 1006, Tunisia
| | - Taoufik Ghrairi
- Laboratory of Neurophysiology Cellular Physiopathology and Biomolecule Valorisation LR18ES03, Faculty of Sciences of Tunis, University Tunis El Manar, Tunis 2092, Tunisia;
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Bartolomeu M, Vieira C, Dias M, Conde T, Couto D, Lopes D, Neves B, Melo T, Rey F, Alves E, Silva J, Abreu H, Almeida A, Domingues MR. Bioprospecting antibiotic properties in photodynamic therapy of lipids from Codium tomemtosum and Chlorella vulgaris. Biochimie 2022; 203:32-39. [DOI: 10.1016/j.biochi.2022.09.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 09/14/2022] [Accepted: 09/19/2022] [Indexed: 11/25/2022]
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Evaluation of the Marine Bacterial Population in the Great Bitter Lake, Egypt, as a Source of Antimicrobial Secondary Metabolites. FERMENTATION-BASEL 2022. [DOI: 10.3390/fermentation8070309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The ecological uniqueness of the Great Bitter Lake ecosystem makes its bacterial population interesting for investigation. Here, we present the first trial to evaluate the biosynthetic capacity of the bacterial population at the lake as a source of novel antimicrobials. We collected different samples from various locations throughout the lake including the oxic sediment, anoxic sediment, shore water, and off-shore water. We modified a molecular approach to compare and choose the samples with the highest bacterial biosynthetic capacity by quantifying the polyketide synthase gene clusters in their total community DNA. Furthermore, we screened the bacterial isolates recovered from these samples and their metabolic extracts for antimicrobial activity. We tried to tentatively investigate the identity of the active metabolites by PCR screening and LC–MS. The bacterial population in the oxic sediment had the highest biosynthetic capacity compared to other sample types. Four active Bacillus isolates were identified. The isolated Bacillus species were expected to produce numerous probable bioactive metabolites encoded by biosynthetic gene clusters related to the polyketide synthases (either individual or hybrid with non-ribosomal peptide synthetase), such as Bacillomycin D, Iturin A, Bacilosarcin B, Bacillcoumacin G and Macrolactin (N and G). These results suggest that the under-explored bacterial community of the Great Bitter Lake has a prospective biosynthetic capacity and can be a promising source for novel antibiotics.
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Moubayed NM, Al Houri HJ, Bukhari SI. Turbinaria ornata and its associated epiphytic Bacillus sp. A promising molecule supplier to discover new natural product approaches. Saudi J Biol Sci 2022; 29:2532-2540. [PMID: 35531156 PMCID: PMC9072896 DOI: 10.1016/j.sjbs.2021.12.041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 11/11/2021] [Accepted: 12/14/2021] [Indexed: 11/08/2022] Open
Abstract
Marine ecosystems are highly dependent on macroalgea in providing food and shelter for aquatic organisms, interacting with many bacteria and mostly producing secondary metabolites of potent therapeutic antibacterial property. Screening of marine microbial secondary metabolites of valuable biotechnological and therapeutical applications are now extensively studied. In this study, Bacillus spp. identified by DNA sequencing and found associated with Turbinaria ornata, was screened and characterized for its cell free supernatant (CFS) possible antimicrobial and antibiofilm applications. Among the 7 microbial isolates tested, CFS greatly affected Bacillus subitilis (12 mm) and inhibited equally the yeast isolates Candida albicans, Candida tropicalis and Candida glabrata (10 mm) and had no or negligible effect on S.aureus, E.coli, P. aeruginosa. As for the CFS antibiofilm activity, no difference was revealed from the positive control. Algal crude extracts (methanol, acetone and aqueous), on the other hand, were similarly tested for their antimicrobial activity against the seven microbial isolates, where highest activity was observed with the aqueous crude extract against Staphylococcus aureus(10 mm) and Pseudomonas aeruginosa (9 mm) compared to the negligible effects of methanol and acetone crude extracts. Chemical analysis was performed to reveal the major constituents of both crude algal extracts and Bacillus spp. CFS. FTIR spectrum of the bacterial CFS indicated the presence of bacteriocin as the major lipopeptide responsible for its biological activity. Whereas, methanol and water crude algal extract GC-MS spectra revealed different chemical groups of various combined therapeutical activity mainly Naphthalene, amino ethane-sulfonic acid, pyrlene, Biotin and mercury chloromethyl correspondingly. Thus, the present study, demonstrated the moderate activity of both crude algal extract and the bacterial CFS, however, further investigations are needed for a better biological activity.
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Affiliation(s)
- Nadine M.S. Moubayed
- Botany and Microbiology Department, Science College, Female Campus, King Saud University, Riyadh 11495, Saudi Arabia
| | - Hadeel J. Al Houri
- Botany and Microbiology Department, Science College, Female Campus, King Saud University, Riyadh 11495, Saudi Arabia
| | - Sarah I. Bukhari
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
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Lian J, Steinert G, de Vree J, Meijer S, Heryanto C, Bosma R, Wijffels RH, Barbosa MJ, Smidt H, Sipkema D. Bacterial diversity in different outdoor pilot plant photobioreactor types during production of the microalga Nannochloropsis sp. CCAP211/78. Appl Microbiol Biotechnol 2022; 106:2235-2248. [PMID: 35166894 PMCID: PMC8930801 DOI: 10.1007/s00253-022-11815-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 12/22/2021] [Accepted: 01/29/2022] [Indexed: 11/25/2022]
Abstract
As large-scale outdoor production cannot be done in complete containment, cultures are (more) open for bacteria, which may affect the productivity and stability of the algae production process. We investigated the bacterial diversity in two indoor reactors and four pilot-scale outdoor reactors for the production of Nannochloropsis sp. CCAP211/78 spanning four months of operation from July to October. Illumina sequencing of 16S rRNA gene amplicons demonstrated that a wide variety of bacteria were present in all reactor types, with predominance of Bacteroidetes and Alphaproteobacteria. Bacterial communities were significantly different between all reactor types (except between the horizontal tubular reactor and the vertical tubular reactor) and also between runs in each reactor. Bacteria common to the majority of samples included one member of the Saprospiraceae family and one of the NS11-12_marine group (both Bacteroidetes). Hierarchical clustering analysis revealed two phases during the cultivation period separated by a major shift in bacterial community composition in the horizontal tubular reactor, the vertical tubular reactor and the raceway pond with a strong decrease of the Saprospiraceae and NS11-12_marine group that initially dominated the bacterial communities. Furthermore, we observed a less consistent pattern of bacterial taxa appearing in different reactors and runs, most of which belonging to the classes Deltaproteobacteria and Flavobacteriia. In addition, canonical correspondence analysis showed that the bacterial community composition was significantly correlated with the nitrate concentration. This study contributes to our understanding of bacterial diversity and composition in different types of outdoor reactors exposed to a range of dynamic biotic and abiotic factors. Key points • Reactor types had significantly different bacterial communities except HT and VT • The inoculum source and physiochemical factors together affect bacterial community • The bacterial family Saprospiraceae is positively correlated to microalgal growth.
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Affiliation(s)
- Jie Lian
- Laboratory of Microbiology, Wageningen University & Research, Stippeneng 4, 6708 WE, Wageningen, The Netherlands
| | - Georg Steinert
- Laboratory of Microbiology, Wageningen University & Research, Stippeneng 4, 6708 WE, Wageningen, The Netherlands
| | - Jeroen de Vree
- Bioprocess Engineering, AlgaePARC, Wageningen University & Research, PO Box 16, 6700 AA, Wageningen, The Netherlands
| | - Sven Meijer
- Laboratory of Microbiology, Wageningen University & Research, Stippeneng 4, 6708 WE, Wageningen, The Netherlands
| | - Christa Heryanto
- Bioprocess Engineering, AlgaePARC, Wageningen University & Research, PO Box 16, 6700 AA, Wageningen, The Netherlands
| | - Rouke Bosma
- Bioprocess Engineering, AlgaePARC, Wageningen University & Research, PO Box 16, 6700 AA, Wageningen, The Netherlands
| | - René H Wijffels
- Bioprocess Engineering, AlgaePARC, Wageningen University & Research, PO Box 16, 6700 AA, Wageningen, The Netherlands
- Faculty of Biosciences and Aquaculture, Nord University, N8049, Bodø, Norway
| | - Maria J Barbosa
- Bioprocess Engineering, AlgaePARC, Wageningen University & Research, PO Box 16, 6700 AA, Wageningen, The Netherlands
| | - Hauke Smidt
- Laboratory of Microbiology, Wageningen University & Research, Stippeneng 4, 6708 WE, Wageningen, The Netherlands
| | - Detmer Sipkema
- Laboratory of Microbiology, Wageningen University & Research, Stippeneng 4, 6708 WE, Wageningen, The Netherlands.
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12
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Ali M, Walait S, Farhan Ul Haque M, Mukhtar S. Antimicrobial activity of bacteria associated with the rhizosphere and phyllosphere of Avena fatua and Brachiaria reptans. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:68846-68861. [PMID: 34282546 DOI: 10.1007/s11356-021-15436-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Accepted: 07/09/2021] [Indexed: 06/13/2023]
Abstract
Environmental pollution especially heavy metal-contaminated soils adversely affects the microbial communities associated with the rhizosphere and phyllosphere of plants growing in these areas. In the current study, we identified and characterized the rhizospheric and phyllospheric bacterial strains from Avena fatua and Brachiaria reptans with the potential for antimicrobial activity and heavy metal resistance. A total of 18 bacterial strains from the rhizosphere and phyllosphere of A. fatua and 19 bacterial strains from the rhizosphere and phyllosphere of B. reptans were identified based on 16S rRNA sequence analysis. Bacterial genera, including Bacillus, Staphylococcus, Pseudomonas, and Enterobacter were dominant in the rhizosphere and phyllosphere of A. fatua and Bacillus, Marinobacter, Pseudomonas, Enterobacter, and Kocuria, were the dominating bacterial genera from the rhizosphere and phyllosphere of B. reptans. Most of the bacterial strains were resistant to heavy metals (Cd, Pb, and Cr) and showed antimicrobial activity against different pathogenic bacterial strains. The whole-genome sequence analysis of Pseudomonas putida BR-PH17, a strain isolated from the phyllosphere of B. reptans, was performed by using the Illumina sequencing approach. The BR-PH17 genome contained a chromosome with a size of 5774330 bp and a plasmid DNA with 80360 bp. In this genome, about 5368 predicted protein-coding sequences with 5539 total genes, 22 rRNAs, and 75 tRNA genes were identified. Functional analysis of chromosomal and plasmid DNA revealed a variety of enzymes and proteins involved in antibiotic resistance and biodegradation of complex organic pollutants. These results indicated that bacterial strains identified in this study could be utilized for bioremediation of heavy metal-contaminated soils and as a novel source of antimicrobial drugs.
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Affiliation(s)
- Muskan Ali
- Lahore College for Women University, Near Wapda Flats, Jail Rd, Jubilee Town, Lahore, Punjab, 54000, Pakistan
| | - Sadia Walait
- Riphah International University, Faisalabad, Adjacent Fish Farm, Satayana Rd, Faisalabad, Punjab, 44000, Pakistan
| | | | - Salma Mukhtar
- School of Biological Sciences, University of the Punjab, Lahore, 54590, Pakistan.
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Srinivasan R, Kannappan A, Shi C, Lin X. Marine Bacterial Secondary Metabolites: A Treasure House for Structurally Unique and Effective Antimicrobial Compounds. Mar Drugs 2021; 19:md19100530. [PMID: 34677431 PMCID: PMC8539464 DOI: 10.3390/md19100530] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 09/12/2021] [Accepted: 09/15/2021] [Indexed: 02/06/2023] Open
Abstract
The prevalence of antimicrobial resistance reduces the effectiveness of antimicrobial drugs in preventing and treating infectious diseases caused by pathogenic organisms, such as bacteria, fungi, and viruses. Because of the burgeoning growth of microbes with antimicrobial-resistant traits, there is a dire need to identify and develop novel and effective antimicrobial agents to treat infections from antimicrobial-resistant strains. The marine environment is rich in ecological biodiversity and can be regarded as an untapped resource for prospecting novel bioactive compounds. Therefore, exploring the marine environment for antimicrobial agents plays a significant role in drug development and biomedical research. Several earlier scientific investigations have proven that bacterial diversity in the marine environment represents an emerging source of structurally unique and novel antimicrobial agents. There are several reports on marine bacterial secondary metabolites, and many are pharmacologically significant and have enormous promise for developing effective antimicrobial drugs to combat microbial infections in drug-resistant pathogens. In this review, we attempt to summarize published articles from the last twenty-five years (1996–2020) on antimicrobial secondary metabolites from marine bacteria evolved in marine environments, such as marine sediment, water, fauna, and flora.
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Affiliation(s)
- Ramanathan Srinivasan
- Fujian Provincial Key Laboratory of Agroecological Processing and Safety Monitoring, School of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- Key Laboratory of Crop Ecology and Molecular Physiology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- Correspondence: (R.S.); (X.L.)
| | - Arunachalam Kannappan
- State Key Laboratory of Microbial Metabolism, MOST-USDA Joint Research Center for Food Safety, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China; (A.K.); (C.S.)
| | - Chunlei Shi
- State Key Laboratory of Microbial Metabolism, MOST-USDA Joint Research Center for Food Safety, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China; (A.K.); (C.S.)
| | - Xiangmin Lin
- Fujian Provincial Key Laboratory of Agroecological Processing and Safety Monitoring, School of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- Key Laboratory of Crop Ecology and Molecular Physiology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- Key Laboratory of Marine Biotechnology of Fujian Province, Institute of Oceanology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- Correspondence: (R.S.); (X.L.)
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14
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Braglia C, Alberoni D, Porrini MP, Garrido PM, Baffoni L, Di Gioia D. Screening of Dietary Ingredients against the Honey Bee Parasite Nosema ceranae. Pathogens 2021; 10:1117. [PMID: 34578150 PMCID: PMC8466614 DOI: 10.3390/pathogens10091117] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 08/27/2021] [Accepted: 08/27/2021] [Indexed: 12/27/2022] Open
Abstract
Nosema ceranae is a major pathogen in the beekeeping sector, responsible for nosemosis. This disease is hard to manage since its symptomatology is masked until a strong collapse of the colony population occurs. Conversely, no medicaments are available in the market to counteract nosemosis, and only a few feed additives, with claimed antifungal action, are available. New solutions are strongly required, especially based on natural methods alternative to veterinary drugs that might develop resistance or strongly pollute honey bees and the environment. This study aims at investigating the nosemosis antiparasitic potential of some plant extracts, microbial fermentation products, organic acids, food chain waste products, bacteriocins, and fungi. Honey bees were singularly infected with 5 × 104 freshly prepared N. ceranae spores, reared in cages and fed ad libitum with sugar syrup solution containing the active ingredient. N. ceranae in the gut of honey bees was estimated using qPCR. The results showed that some of the ingredients administered, such as acetic acid at high concentration, p-coumaric acid, and Saccharomyces sp. strain KIA1, were effective in the control of nosemosis. On the other hand, wine acetic acid strongly increased the N. ceranae amount. This study investigates the possibility of using compounds such as organic acids or biological agents including those at the base of the circular economy, i.e., wine waste production, in order to improve honeybee health.
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Affiliation(s)
- Chiara Braglia
- Department of Agricultural and Food Sciences (DISTAL), University of Bologna, Viale Fanin 44, 40127 Bologna, Italy; (C.B.); (L.B.); (D.D.G.)
| | - Daniele Alberoni
- Department of Agricultural and Food Sciences (DISTAL), University of Bologna, Viale Fanin 44, 40127 Bologna, Italy; (C.B.); (L.B.); (D.D.G.)
| | - Martin Pablo Porrini
- Instituto de Investigaciones en Producción Sanidad y Ambiente (IIPROSAM), Centro Científico Tecnológico Mar del Plata-CONICET-UNMdP-CIC-PBA, Funes 3350, Mar del Plata Zc 7600, Argentina; (M.P.P.); (P.M.G.)
- Centro de Investigación en Abejas Sociales (CIAS), FCEyN, UNMdP, Funes 3350, Mar del Plata Zc 7600, Argentina
| | - Paula Melisa Garrido
- Instituto de Investigaciones en Producción Sanidad y Ambiente (IIPROSAM), Centro Científico Tecnológico Mar del Plata-CONICET-UNMdP-CIC-PBA, Funes 3350, Mar del Plata Zc 7600, Argentina; (M.P.P.); (P.M.G.)
- Centro de Investigación en Abejas Sociales (CIAS), FCEyN, UNMdP, Funes 3350, Mar del Plata Zc 7600, Argentina
| | - Loredana Baffoni
- Department of Agricultural and Food Sciences (DISTAL), University of Bologna, Viale Fanin 44, 40127 Bologna, Italy; (C.B.); (L.B.); (D.D.G.)
| | - Diana Di Gioia
- Department of Agricultural and Food Sciences (DISTAL), University of Bologna, Viale Fanin 44, 40127 Bologna, Italy; (C.B.); (L.B.); (D.D.G.)
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Baharudin MMAA, Ngalimat MS, Mohd Shariff F, Balia Yusof ZN, Karim M, Baharum SN, Sabri S. Antimicrobial activities of Bacillus velezensis strains isolated from stingless bee products against methicillin-resistant Staphylococcus aureus. PLoS One 2021; 16:e0251514. [PMID: 33974665 PMCID: PMC8112681 DOI: 10.1371/journal.pone.0251514] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Accepted: 04/28/2021] [Indexed: 12/29/2022] Open
Abstract
Infections caused by methicillin-resistant Staphylococcus aureus (MRSA) have reached epidemic proportions globally. Therefore, there is an urgent need for a continuous supply of antibiotics to combat the problem. In this study, bacteria initially identified as species belonging to the Bacillus amyloliquefaciens operational group were re-identified based on the housekeeping gene, gyrB. Cell-free supernatants (CFS) from the strains were used for antimicrobial tests using the agar well diffusion assay against MRSA and various types of pathogenic bacteria. The minimum inhibitory concentration (MIC), minimum bactericidal concentration (MBC) and physicochemical characteristics of the CFS were determined. Based on gyrB sequence analysis, five strains (PD9, B7, PU1, BP1 and L9) were identified as Bacillus velezensis. The CFS of all B. velezensis strains showed broad inhibitory activities against Gram-negative and -positive as well as MRSA strains. Strain PD9 against MRSA ATCC 33742 was chosen for further analysis as it showed the biggest zone of inhibition (21.0 ± 0.4 mm). The MIC and MBC values obtained were 125 μl/ml. The crude antimicrobial extract showed bactericidal activity and was stable at various temperatures (40–80°C), pH (4–12), surfactants (Tween 20, Tween 80, SDS and Triton X-100) and metal ions (MgCI2, NaCI2, ZnNO3 and CuSO4) when tested. However, the crude extract was not stable when treated with proteinase K. All these properties resembled the characteristics of peptides. The antimicrobial compound from the selected strain was purified by using solvent extraction method and silica gel column chromatography. The purified compound was subjected to High Performance Liquid Chromatography which resulted in a single peak of the anti-MRSA compound being detected. The molecular weight of the anti-MRSA compound was determined by using SDS-PAGE and zymogram. The size of the purified antimicrobial peptide was approximately ~ 5 kDa. The antimicrobial peptide produced from B. velezensis strain PD9 is a promising alternative to combat the spread of MRSA infections in the future.
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Affiliation(s)
- Mohamad Malik Al-adil Baharudin
- Enzyme and Microbial Technology Research Center, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - Mohamad Syazwan Ngalimat
- Enzyme and Microbial Technology Research Center, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - Fairolniza Mohd Shariff
- Enzyme and Microbial Technology Research Center, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
- Department of Microbiology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - Zetty Norhana Balia Yusof
- Department of Biochemistry, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - Murni Karim
- Department of Aquaculture, Faculty of Agriculture, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
- Laboratory of Marine Biotechnology, Institute of Bioscience, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - Syarul Nataqain Baharum
- Metabolomics Research Laboratory, Institute of Systems Biology, Universiti Kebangsaan Malaysia, Bangi, Malaysia
| | - Suriana Sabri
- Enzyme and Microbial Technology Research Center, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
- Department of Microbiology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
- * E-mail:
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16
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Environmental factors shape the epiphytic bacterial communities of Gracilariopsis lemaneiformis. Sci Rep 2021; 11:8671. [PMID: 33883606 PMCID: PMC8060329 DOI: 10.1038/s41598-021-87977-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Accepted: 04/06/2021] [Indexed: 02/02/2023] Open
Abstract
Macroalgae host various symbionts on their surface, which play a critical role in their growth and development processes. However, there is still incomplete understanding of this epiphytic bacteria-host algae interactions. This study comprehensively analysed variation of the epiphytic bacterial communities (EBC) composition of red macroalga Gracilariopsis lemaneiformis at different geographic locations and environmental factors (i.e., nitrogen and phosphorus), which shape the EBC composition of G. lemaneiformis. The composition and structure of EBC were characterized using high throughput sequencing of the V3-V4 hypervariable region of the 16S rRNA gene. The results revealed that epiphytic bacteria varied significantly among three different geographic locations in China, i.e., Nan'ao Island (NA), Lianjiang County (LJ), and Nanri Island (NR). Redundancy analysis (RDA) showed that the relative abundance of Bacteroidetes, Firmicutes, Verrucomicrobia, and Epsilonbacteraeota at NR were strongly positively correlated with total nitrogen (TN), total phosphorus (TP), nitrate nitrogen (NO3-N), and dissolved inorganic nitrogen (DIN), but negatively correlated with nitrite nitrogen (NO2-N). The relative abundance of Cyanobacteria at NA and LJ were strongly positively correlated with NO2-N, but negatively correlated with TN, TP, NO3-N, and DIN. Besides, the Mantel test results indicated that the EBC composition was significantly correlated with these environmental factors, which was also confirmed by Spearman correlation analysis. Thus, environmental factors such as NO3-N and DIN play a key role in the community composition of epiphytic bacteria on G. lemaneiformis. This study provides important baseline knowledge on the community composition of epiphytic bacteria on G. lemaneiformis and shows correlation between different epiphytic bacteria and their surrounding environmental factors.
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AftabUddin S, Siddique MAM, Habib A, Akter S, Hossen S, Tanchangya P, Abdullah Al M. Effects of seaweeds extract on growth, survival, antibacterial activities, and immune responses of Penaeus monodon against Vibrio parahaemolyticus. ITALIAN JOURNAL OF ANIMAL SCIENCE 2021. [DOI: 10.1080/1828051x.2021.1878943] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Sheikh AftabUddin
- Institute of Marine Sciences, University of Chittagong, Chittagong, Bangladesh
| | - Mohammad Abdul Momin Siddique
- Department of Oceanography, Noakhali Science and Technology University, Noakhali, Bangladesh
- Research Institute of Fish Culture and Hydrobiology, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Faculty of Fisheries and Protection of Waters, University of South Bohemia in České Budějovice, Vodňany, Czech Republic
| | - Ahasan Habib
- Faculty of Fisheries and Food Science, Universiti Malaysia Terengganu, Terengganu, Malaysia
- Department of Fisheries and Marine Science, Noakhali Science and Technology University, Noakhali, Bangladesh
| | - Shahinur Akter
- Institute of Marine Sciences, University of Chittagong, Chittagong, Bangladesh
| | - Shipan Hossen
- Institute of Marine Sciences, University of Chittagong, Chittagong, Bangladesh
- State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai, China
| | - Protiva Tanchangya
- Institute of Marine Sciences, University of Chittagong, Chittagong, Bangladesh
| | - Mamun Abdullah Al
- Institute of Marine Sciences, University of Chittagong, Chittagong, Bangladesh
- Department of Environmental Sciences, University of Chinese Academy of Sciences, Beijing, China
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18
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Abbott DW, Aasen IM, Beauchemin KA, Grondahl F, Gruninger R, Hayes M, Huws S, Kenny DA, Krizsan SJ, Kirwan SF, Lind V, Meyer U, Ramin M, Theodoridou K, von Soosten D, Walsh PJ, Waters S, Xing X. Seaweed and Seaweed Bioactives for Mitigation of Enteric Methane: Challenges and Opportunities. Animals (Basel) 2020; 10:E2432. [PMID: 33353097 PMCID: PMC7766277 DOI: 10.3390/ani10122432] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 12/07/2020] [Accepted: 12/15/2020] [Indexed: 12/27/2022] Open
Abstract
Seaweeds contain a myriad of nutrients and bioactives including proteins, carbohydrates and to a lesser extent lipids as well as small molecules including peptides, saponins, alkaloids and pigments. The bioactive bromoform found in the red seaweed Asparagopsis taxiformis has been identified as an agent that can reduce enteric CH4 production from livestock significantly. However, sustainable supply of this seaweed is a problem and there are some concerns over its sustainable production and potential negative environmental impacts on the ozone layer and the health impacts of bromoform. This review collates information on seaweeds and seaweed bioactives and the documented impact on CH4 emissions in vitro and in vivo as well as associated environmental, economic and health impacts.
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Affiliation(s)
- D. Wade Abbott
- Lethbridge Research and Development Centre, Agriculture and Agri-Food Canada, 5403-1 Avenue South, Lethbridge, AB T1J 4B1, Canada; (D.W.A.); (K.A.B.); (R.G.); (X.X.)
| | - Inga Marie Aasen
- Department of Biotechnology and Nanomedicine, SINTEF Industry, 7465 Trondheim, Norway;
| | - Karen A. Beauchemin
- Lethbridge Research and Development Centre, Agriculture and Agri-Food Canada, 5403-1 Avenue South, Lethbridge, AB T1J 4B1, Canada; (D.W.A.); (K.A.B.); (R.G.); (X.X.)
| | - Fredrik Grondahl
- Department of Sustainable Development, Environmental Science and Engineering, KTH Royal Institute of Technology, 114 28 Stockholm, Sweden;
| | - Robert Gruninger
- Lethbridge Research and Development Centre, Agriculture and Agri-Food Canada, 5403-1 Avenue South, Lethbridge, AB T1J 4B1, Canada; (D.W.A.); (K.A.B.); (R.G.); (X.X.)
| | - Maria Hayes
- Food BioSciences Department, Teagasc Food Research Centre, Ashtown, D15 KN3K Dublin 15, Ireland
| | - Sharon Huws
- Queens University Belfast (QUB), Belfast, BT7 1NN Co., Antrim, Ireland; (S.H.); (K.T.); (P.J.W.)
| | - David A. Kenny
- Animal Bioscience Research Centre, Grange, Dunsany, C15 PW93 Co., Meath, Ireland; (D.A.K.); (S.F.K.); (S.W.)
| | - Sophie J. Krizsan
- Department of Agricultural Research for Northern Sweden, Swedish University of Agricultural Sciences, SE-901 83 Umeå, Sweden; (S.J.K.); (M.R.)
| | - Stuart F. Kirwan
- Animal Bioscience Research Centre, Grange, Dunsany, C15 PW93 Co., Meath, Ireland; (D.A.K.); (S.F.K.); (S.W.)
| | - Vibeke Lind
- Norwegian Institute of Bioeconomy Research (NIBIO), Post Box 115, 1431 Ås, Norway;
| | - Ulrich Meyer
- Friedrich-Loeffler-Institut (FLI), Bundesforschungsinstitut für Tiergesundheit, Federal Research Institute for Animal Health, 38116 Braunschweig, Germany; (U.M.); (D.v.S.)
| | - Mohammad Ramin
- Department of Agricultural Research for Northern Sweden, Swedish University of Agricultural Sciences, SE-901 83 Umeå, Sweden; (S.J.K.); (M.R.)
| | - Katerina Theodoridou
- Queens University Belfast (QUB), Belfast, BT7 1NN Co., Antrim, Ireland; (S.H.); (K.T.); (P.J.W.)
| | - Dirk von Soosten
- Friedrich-Loeffler-Institut (FLI), Bundesforschungsinstitut für Tiergesundheit, Federal Research Institute for Animal Health, 38116 Braunschweig, Germany; (U.M.); (D.v.S.)
| | - Pamela J. Walsh
- Queens University Belfast (QUB), Belfast, BT7 1NN Co., Antrim, Ireland; (S.H.); (K.T.); (P.J.W.)
| | - Sinéad Waters
- Animal Bioscience Research Centre, Grange, Dunsany, C15 PW93 Co., Meath, Ireland; (D.A.K.); (S.F.K.); (S.W.)
| | - Xiaohui Xing
- Lethbridge Research and Development Centre, Agriculture and Agri-Food Canada, 5403-1 Avenue South, Lethbridge, AB T1J 4B1, Canada; (D.W.A.); (K.A.B.); (R.G.); (X.X.)
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19
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Picon A, Del Olmo A, Nuñez M. Bacterial diversity in six species of fresh edible seaweeds submitted to high pressure processing and long-term refrigerated storage. Food Microbiol 2020; 94:103646. [PMID: 33279071 DOI: 10.1016/j.fm.2020.103646] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 09/11/2020] [Accepted: 09/15/2020] [Indexed: 02/06/2023]
Abstract
Seaweeds are highly perishable foods due to their richness in nutrients. High pressure processing (HPP) has been applied for extending the shelf life of fresh seaweeds but there is no information on the effect of HPP on the bacterial diversity of seaweeds. The culturable bacteria of six species of fresh edible seaweeds (green seaweeds Codium fragile and Ulva lactuca, brown seaweeds Himanthalia elongata, Laminaria ochroleuca and Undaria pinnatifida, and red seaweed Chondrus crispus) were investigated and compared to those of HPP-treated (400 and 600 MPa for 5 min) seaweeds, at the start and end of their refrigerated storage period. A total of 523 and 506 bacterial isolates were respectively retrieved from untreated and HPP-treated seaweeds. Isolates from untreated seaweeds belonged to 18 orders, 35 families, 71 genera and 135 species whereas isolates from HPP-treated seaweeds belonged to 13 orders, 23 families, 43 genera and 103 species. HPP treatment significantly reduced the number of isolates belonging to 6 families and greatly increased the number of Bacillaceae isolates. At the end of storage, decreases in bacterial diversity at the genus and species level were observed for untreated as well as for HPP-treated seaweeds.
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Affiliation(s)
- Antonia Picon
- INIA, Departamento de Tecnología de Alimentos, Carretera de La Coruña Km 7, 28040, Madrid, Spain.
| | - Ana Del Olmo
- INIA, Departamento de Tecnología de Alimentos, Carretera de La Coruña Km 7, 28040, Madrid, Spain
| | - Manuel Nuñez
- INIA, Departamento de Tecnología de Alimentos, Carretera de La Coruña Km 7, 28040, Madrid, Spain
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20
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Antimicrobial Lipids from Plants and Marine Organisms: An Overview of the Current State-of-the-Art and Future Prospects. Antibiotics (Basel) 2020; 9:antibiotics9080441. [PMID: 32722192 PMCID: PMC7459900 DOI: 10.3390/antibiotics9080441] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 07/17/2020] [Accepted: 07/22/2020] [Indexed: 02/07/2023] Open
Abstract
In the actual post-antibiotic era, novel ways of rethinking antimicrobial research approaches are more urgent than ever. Natural compounds with antimicrobial activity such as fatty acids and monoacylglycerols have been investigated for decades. Additionally, the interest in other lipid classes as antimicrobial agents is rising. This review provides an overview on the research about plant and marine lipids with potential antimicrobial activity, the methods for obtaining and analyzing these compounds, with emphasis on lipidomics, and future perspectives for bioprospection and applications for antimicrobial lipids. Lipid extracts or lipids isolated from higher plants, algae or marine invertebrates are promising molecules to inactivate a wide spectrum of microorganisms. These lipids include a variety of chemical structures. Present and future challenges in the research of antimicrobial lipids from natural origin are related to the investment and optimization of the analytical workflow based on lipidomics tools, complementary to the bioassay-guided fractionation, to identify the active compound(s). Also, further work is needed regarding the study of their mechanism of action, the structure-activity relationship, the synergistic effect with conventional antibiotics, and the eventual development of resistance to lipids, which, as far as is known, is unlikely.
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21
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Decoding Antioxidant and Antibacterial Potentials of Malaysian Green Seaweeds: Caulerpa racemosa and Caulerpa lentillifera. Antibiotics (Basel) 2019; 8:antibiotics8030152. [PMID: 31533237 PMCID: PMC6783820 DOI: 10.3390/antibiotics8030152] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Revised: 08/29/2019] [Accepted: 08/30/2019] [Indexed: 12/31/2022] Open
Abstract
Seaweeds are gaining a considerable amount of attention for their antioxidant and antibacterial properties. Caulerpa racemosa and Caulerpa lentillifera, also known as ‘sea grapes’, are green seaweeds commonly found in different parts of the world, but the antioxidant and antibacterial potentials of Malaysian C. racemosa and C. lentillifera have not been thoroughly explored. In this study, crude extracts of the seaweeds were prepared using chloroform, methanol, and water. Total phenolic content (TPC) and total flavonoid content (TFC) were measured, followed by in vitro antioxidant activity determination using 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging assay. Antibacterial activities of these extracts were tested against Methicillin-resistant Staphylococcus aureus (MRSA) and neuropathogenic Escherichia coli K1. Liquid chromatography–mass spectrometry (LCMS) analysis was then used to determine the possible compounds present in the extract with the most potent antioxidant and antibacterial activity. Results showed that C. racemosa chloroform extract had the highest TPC (13.41 ± 0.86 mg GAE/g), antioxidant effect (EC50 at 0.65 ± 0.03 mg/mL), and the strongest antibacterial effect (97.7 ± 0.30%) against MRSA. LCMS analysis proposed that the chloroform extracts of C. racemosa are mainly polyunsaturated and monounsaturated fatty acids, terpenes, and alkaloids. In conclusion, C. racemosa can be a great source of novel antioxidant and antibacterial agents, but isolation and purification of the bioactive compounds are needed to study their mechanism of action.
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Suvega T, Arunkumar K. Probiotic bacteria promote the growth of associating host(red seaweed, Gracilaria edulis) also synthesize antibacterial protein. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2019. [DOI: 10.1016/j.bcab.2019.101136] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Alvarado P, Huang Y, Wang J, Garrido I, Leiva S. Phylogeny and bioactivity of epiphytic Gram-positive bacteria isolated from three co-occurring antarctic macroalgae. Antonie Van Leeuwenhoek 2018; 111:1543-1555. [PMID: 29460205 DOI: 10.1007/s10482-018-1044-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2017] [Accepted: 02/07/2018] [Indexed: 12/25/2022]
Abstract
Marine macroalgae are emerging as an untapped source of novel microbial diversity and, therefore, of new bioactive secondary metabolites. This study was aimed at assessing the diversity and antimicrobial activity of the culturable Gram-positive bacteria associated with the surface of three co-occurring Antarctic macroalgae. Specimens of Adenocystis utricularis (brown alga), Iridaea cordata (red alga) and Monostroma hariotii (green alga) were collected from the intertidal zone of King George Island, Antarctica. Gram-positive bacteria were investigated by cultivation-based methods and 16S rRNA gene sequencing, and screened for antimicrobial activity against a panel of pathogenic microorganisms. Isolates were found to belong to 12 families, with a dominance of Microbacteriaceae and Micrococcaceae. Seventeen genera of Actinobacteria and 2 of Firmicutes were cultured from the three macroalgae, containing 29 phylotypes. Three phylotypes within Actinobacteria were regarded as potentially novel species. Sixteen isolates belonging to the genera Agrococcus, Arthrobacter, Micrococcus, Pseudarthrobacter, Pseudonocardia, Sanguibacter, Staphylococcus, Streptomyces and Tessaracoccus exhibited antibiotic activity against at least one of the indicator strains. The bacterial phylotype composition was distinct among the three macroalgae species, suggesting that these macroalgae host species-specific Gram-positive associates. The results highlight the importance of Antarctic macroalgae as a rich source of Gram-positive bacterial diversity and potentially novel species, and a reservoir of bacteria producing biologically active compounds with pharmacological potential.
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Affiliation(s)
- Pamela Alvarado
- Universidad Tecnológica de Chile INACAP, Avenida René Soriano 2382, Osorno, Chile
| | - Ying Huang
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Jian Wang
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Ignacio Garrido
- Département de Biologie et Québec-Océan, Université Laval, Pavillon Alexandre-Vachon 1045, Avenue de la Médecine, Québec, QC, G1V 0A6, Canada
- Centro FONDAP de Investigaciones en Dinámica de Ecosistemas Marinos de Altas Latitudes (IDEAL), Valdivia, Chile
| | - Sergio Leiva
- Instituto de Bioquímica & Microbiología, Facultad de Ciencias, Universidad Austral de Chile, Casilla 567, Valdivia, Chile.
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Karthick P, Mohanraju R. Antimicrobial Potential of Epiphytic Bacteria Associated With Seaweeds of Little Andaman, India. Front Microbiol 2018; 9:611. [PMID: 29670590 PMCID: PMC5893765 DOI: 10.3389/fmicb.2018.00611] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Accepted: 03/16/2018] [Indexed: 11/17/2022] Open
Abstract
Seaweeds of the intertidal regions are a rich source of surface associated bacteria and are potential source of antimicrobial molecules. In the present study, 77 epiphytic isolates from eight different algae collected from Little Andaman were enumerated. On testing for their antimicrobial activities against certain pathogens twelve isolates showed positive and six of them showed significant antimicrobial inhibition zone against Shigella boydii type 1, Shigella flexneri type 2a, Shigella dysenteriae type 5, Enterotoxigenic Escherichia coli O115, Enteropathogenic E. coli serotype O114, Vibrio cholera; O1 Ogawa, Aeromonas hydrophila, Klebsiella pneumoniae, Staphylococcus aureus. Based on the activity these six isolates (G1C, G2C, G3C, UK, UVAD, and Tor1) were identified by 16S rRNA gene sequence and were found to belong to the phyla Firmicutes and Proteobacteria. Purified antimicrobial compounds obtained from these isolates were identified by GC-MS. Furan derivatives were identified from G2C Pseudomonas stutzeri KJ849834, UVAD Alcanivorax dieselolei KJ849833, UK Vibrio sp. KJ849837, Tor1 Exiguobacterium profundum KJ849838. While 2-Pyrrolidinone, Phenol, 2, 4-bis (1, 1-dimethylethyl) were from G3C Vibrio owensii KJ849836 and (1-Allylcyclopropyl) methanol from the extracts of G1C Bacillus sp. KJ849835. The results of the present study shows that these six potent isolates isolated from the seaweeds are found to be a source of antimicrobial compounds.
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Affiliation(s)
- Perumal Karthick
- Department of Ocean Studies and Marine Biology, Pondicherry University, Port Blair, India
| | - Raju Mohanraju
- Department of Ocean Studies and Marine Biology, Pondicherry University, Port Blair, India
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