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Iskandar M, Ruiz-Houston KM, Bracco SD, Sharkasi SR, Calabi Villarroel CL, Desai MN, Gerges AG, Ortiz Lopez NA, Xiao Barbero M, German AA, Moluguri VS, Walker SM, Silva Higashi J, Palma JM, Medina DZ, Patel M, Patel P, Valentin M, Diaz AC, Karthaka JP, Santiago AD, Skiles RB, Romero Umana LA, Ungrey MD, Wojtkowiak A, Howard DV, Nurge R, Woods KG, Nanjundan M. Deep-Sea Sponges and Corals off the Western Coast of Florida-Intracellular Mechanisms of Action of Bioactive Compounds and Technological Advances Supporting the Drug Discovery Pipeline. Mar Drugs 2023; 21:615. [PMID: 38132936 PMCID: PMC10744787 DOI: 10.3390/md21120615] [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: 10/30/2023] [Revised: 11/20/2023] [Accepted: 11/21/2023] [Indexed: 12/23/2023] Open
Abstract
The majority of natural products utilized to treat a diverse array of human conditions and diseases are derived from terrestrial sources. In recent years, marine ecosystems have proven to be a valuable resource of diverse natural products that are generated to defend and support their growth. Such marine sources offer a large opportunity for the identification of novel compounds that may guide the future development of new drugs and therapies. Using the National Oceanic and Atmospheric Administration (NOAA) portal, we explore deep-sea coral and sponge species inhabiting a segment of the U.S. Exclusive Economic Zone, specifically off the western coast of Florida. This area spans ~100,000 km2, containing coral and sponge species at sea depths up to 3000 m. Utilizing PubMed, we uncovered current knowledge on and gaps across a subset of these sessile organisms with regards to their natural products and mechanisms of altering cytoskeleton, protein trafficking, and signaling pathways. Since the exploitation of such marine organisms could disrupt the marine ecosystem leading to supply issues that would limit the quantities of bioactive compounds, we surveyed methods and technological advances that are necessary for sustaining the drug discovery pipeline including in vitro aquaculture systems and preserving our natural ecological community in the future. Collectively, our efforts establish the foundation for supporting future research on the identification of marine-based natural products and their mechanism of action to develop novel drugs and therapies for improving treatment regimens of human conditions and diseases.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Meera Nanjundan
- Department of Molecular Biosciences, University of South Florida, 4202 East Fowler Avenue, ISA2015, Tampa, FL 33620, USA; (M.I.); (K.M.R.-H.); (S.D.B.); (S.R.S.); (C.L.C.V.); (M.N.D.); (A.G.G.); (N.A.O.L.); (M.X.B.); (A.A.G.); (V.S.M.); (S.M.W.); (J.S.H.); (J.M.P.); (D.Z.M.); (M.P.); (P.P.); (M.V.); (A.C.D.); (J.P.K.); (A.D.S.); (R.B.S.); (L.A.R.U.); (M.D.U.); (A.W.); (D.V.H.); (R.N.); (K.G.W.)
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Boopathi S, Meenatchi R, Brindangnanam P, Sudhakaran G, Coumar MS, Arockiaraj J. Microbiome analysis of Litopenaeus vannamei reveals Vibrio as main risk factor of white faeces syndrome. AQUACULTURE 2023; 576:739829. [DOI: 10.1016/j.aquaculture.2023.739829] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/16/2023]
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3
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Bell JJ, Strano F, Broadribb M, Wood G, Harris B, Resende AC, Novak E, Micaroni V. Sponge functional roles in a changing world. ADVANCES IN MARINE BIOLOGY 2023; 95:27-89. [PMID: 37923539 DOI: 10.1016/bs.amb.2023.07.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2023]
Abstract
Sponges are ecologically important benthic organisms with many important functional roles. However, despite increasing global interest in the functions that sponges perform, there has been limited focus on how such functions will be impacted by different anthropogenic stressors. In this review, we describe the progress that has been made in our understanding of the functional roles of sponges over the last 15 years and consider the impacts of anthropogenic stressors on these roles. We split sponge functional roles into interactions with the water column and associations with other organisms. We found evidence for an increasing focus on functional roles among sponge-focused research articles, with our understanding of sponge-mediated nutrient cycling increasing substantially in recent years. From the information available, many anthropogenic stressors have the potential to negatively impact sponge pumping, and therefore have the potential to cause ecosystem level impacts. While our understanding of the importance of sponges has increased in the last 15 years, much more experimental work is required to fully understand how sponges will contribute to reef ecosystem function in future changing oceans.
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Affiliation(s)
- James J Bell
- School of Biological Sciences, Victoria University of Wellington, Wellington, New Zealand.
| | - Francesca Strano
- School of Biological Sciences, Victoria University of Wellington, Wellington, New Zealand
| | - Manon Broadribb
- School of Biological Sciences, Victoria University of Wellington, Wellington, New Zealand
| | - Gabriela Wood
- School of Biological Sciences, Victoria University of Wellington, Wellington, New Zealand
| | - Ben Harris
- School of Biological Sciences, Victoria University of Wellington, Wellington, New Zealand
| | - Anna Carolina Resende
- School of Biological Sciences, Victoria University of Wellington, Wellington, New Zealand
| | - Emma Novak
- School of Biological Sciences, Victoria University of Wellington, Wellington, New Zealand
| | - Valerio Micaroni
- School of Biological Sciences, Victoria University of Wellington, Wellington, New Zealand
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Gantt SE, Erwin PM. Effects of sponge-to-sponge contact on the microbiomes of three spatially competing Caribbean coral reef species. Microbiologyopen 2023; 12:e1354. [PMID: 37379422 DOI: 10.1002/mbo3.1354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 04/06/2023] [Accepted: 04/13/2023] [Indexed: 06/30/2023] Open
Abstract
Sponges perform important ecosystem functions, host diverse microbial symbiont communities (microbiomes), and have been increasing in density on Caribbean coral reefs over the last decade. Sponges compete for space in coral reef communities through both morphological and allelopathic strategies, but no studies of microbiome impacts during these interactions have been conducted. Microbiome alterations mediate spatial competition in other coral reef invertebrates and may similarly impact competitive outcomes for sponges. In this study, we characterized the microbiomes of three common Caribbean sponges (Agelas tubulata, Iotrochota birotulata, and Xestospongia muta) observed to naturally interact spatially in Key Largo, Florida (USA). For each species, replicate samples were collected from sponges in contact with neighbors at the site of contact (contact) and distant from the site of contact (no contact), and from sponges spatially isolated from neighbors (control). Next-generation amplicon sequencing (V4 region of 16S rRNA) revealed significant differences in microbial community structure and diversity among sponge species, but no significant effects were observed within sponge species across all contact states and competitor pairings, indicating no large community shifts in response to direct contact. At a finer scale, particular symbiont taxa (operational taxonomic units at 97% sequence identity, OTUs) were shown to decrease significantly in some interaction pairings, suggesting localized effects for specific sponge competitors. Overall, these results revealed that direct contact during spatial competition does not significantly alter microbial community composition or structure of interacting sponges, suggesting that allelopathic interactions and competitive outcomes are not mediated by microbiome damage or destabilization.
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Affiliation(s)
- Shelby E Gantt
- Center for Marine Science and Department of Biology and Marine Biology, University of North Carolina Wilmington, Wilmington, North Carolina, USA
| | - Patrick M Erwin
- Center for Marine Science and Department of Biology and Marine Biology, University of North Carolina Wilmington, Wilmington, North Carolina, USA
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Alemany I, Pérez-Cembranos A, Pérez-Mellado V, Castro JA, Picornell A, Ramon C, Jurado-Rivera JA. Faecal Microbiota Divergence in Allopatric Populations of Podarcis lilfordi and P. pityusensis, Two Lizard Species Endemic to the Balearic Islands. MICROBIAL ECOLOGY 2023; 85:1564-1577. [PMID: 35482107 PMCID: PMC10167182 DOI: 10.1007/s00248-022-02019-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Accepted: 04/19/2022] [Indexed: 05/10/2023]
Abstract
Gut microbial communities provide essential functions to their hosts and are known to influence both their ecology and evolution. However, our knowledge of these complex associations is still very limited in reptiles. Here we report the 16S rRNA gene faecal microbiota profiles of two lizard species endemic to the Balearic archipelago (Podarcis lilfordi and P. pityusensis), encompassing their allopatric range of distribution through a noninvasive sampling, as an alternative to previous studies that implied killing specimens of these IUCN endangered and near-threatened species, respectively. Both lizard species showed a faecal microbiome composition consistent with their omnivorous trophic ecology, with a high representation of cellulolytic bacteria taxa. We also identified species-specific core microbiota signatures and retrieved lizard species, islet ascription, and seasonality as the main factors in explaining bacterial community composition. The different Balearic Podarcis populations are characterised by harbouring a high proportion of unique bacterial taxa, thus reinforcing their view as unique and divergent evolutionary entities.
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Affiliation(s)
- Iris Alemany
- Department of Biology, University of the Balearic Islands, Ctra., Valldemossa km 7'5, 07122, Palma, Balearic Islands, Spain
| | | | | | - José A Castro
- Department of Biology, University of the Balearic Islands, Ctra., Valldemossa km 7'5, 07122, Palma, Balearic Islands, Spain
| | - Antonia Picornell
- Department of Biology, University of the Balearic Islands, Ctra., Valldemossa km 7'5, 07122, Palma, Balearic Islands, Spain
| | - Cori Ramon
- Department of Biology, University of the Balearic Islands, Ctra., Valldemossa km 7'5, 07122, Palma, Balearic Islands, Spain
| | - José A Jurado-Rivera
- Department of Biology, University of the Balearic Islands, Ctra., Valldemossa km 7'5, 07122, Palma, Balearic Islands, Spain.
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Vijay K, Kiran GS, Divya S, Thangavel K, Thangavelu S, Dhandapani R, Selvin J. Fatty Acid Methyl Esters From the Coral-Associated Bacterium Pseudomonas aeruginosa Inhibit Virulence and Biofilm Phenotypes in Multidrug Resistant Staphylococcus aureus: An in vitro Approach. Front Microbiol 2021; 12:631853. [PMID: 33833739 PMCID: PMC8023275 DOI: 10.3389/fmicb.2021.631853] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2020] [Accepted: 02/09/2021] [Indexed: 11/24/2022] Open
Abstract
In an attempt to study the antibacterial, antivirulence and antibiofilm potentials of bacteria residing the tissue and surface mucus layers of the pristine corals, we screened a total of 43 distinct bacterial morphotypes from the coral Favites sp. Among the isolates, Pseudomonas aeruginosa strain CBMGL12 with showed antibacterial, antivirulence and antibiofilm activity against multidrug resistant pathogenic strains of Staphylococcus aureus (reference strain: MTCC96; community-acquired methicillin resistant strain: CA-MRSA). Extracellular products (ECP) from the coral-associated bacterium P. aeruginosa were solvent extracted, fractionated by chromatographic techniques such as silica column and HPLC-UV with concomitant bioassays guiding the fractionation of metabolites. Identification of bioactive chemical moieties was performed by FT-IR analysis, GC-MS/MS equipped with NIST library, 1H and 13C NMR spectral studies. We report the differential production of extracellular and cell-associated virulence and biofilm phenotypes in multi-drug resistant strains of S. aureus, post-treatment with the ECP containing aromatic fatty acid methyl esters (FAME) such as methyl benzoate and methyl phenyl acetate produced by a coral-associated bacterium. In conclusion, this study has identified antibacterial, antibiofilm and antivirulent FAME from the coral-associated P. aeruginosa for its ability to attenuate virulence and biofilms phenotypes in multi-drug resistant pathogenic strains of S. aureus.
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Affiliation(s)
- Karuppiah Vijay
- Department of Microbiology, School of Life Sciences, Pondicherry University, Puducherry, India.,Department of Microbiology, School of Biological Sciences, Alagappa University, Karaikudi, India
| | - George Seghal Kiran
- Department of Food Science and Technology, School of Life Sciences, Pondicherry University, Puducherry, India
| | - S Divya
- Department of Microbiology, School of Life Sciences, Pondicherry University, Puducherry, India
| | - Kavitha Thangavel
- Department of Microbiology, School of Biological Sciences, Alagappa University, Karaikudi, India
| | - Sathiamoorthi Thangavelu
- Department of Microbiology, School of Biological Sciences, Alagappa University, Karaikudi, India
| | - Ranjithkumar Dhandapani
- Department of Microbiology, School of Biological Sciences, Alagappa University, Karaikudi, India
| | - Joseph Selvin
- Department of Microbiology, School of Life Sciences, Pondicherry University, Puducherry, India
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