Freshwater Sponges as a Neglected Reservoir of Bacterial Biodiversity

Freshwater sponges (Spongillida: Demospongiae), including more than 240 described species, are globally distributed in continental waters (except for Antarctica), where they cover both natural and artificial surfaces. However, fragmentary studies have targeted their microbiome, making it difficult t...

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Main Authors: Angelina Lo Giudice, Carmen Rizzo
Format: Article
Language:English
Published: MDPI AG 2023-12-01
Series:Microorganisms
Subjects:
Online Access:https://www.mdpi.com/2076-2607/12/1/25
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author Angelina Lo Giudice
Carmen Rizzo
author_facet Angelina Lo Giudice
Carmen Rizzo
author_sort Angelina Lo Giudice
collection DOAJ
description Freshwater sponges (Spongillida: Demospongiae), including more than 240 described species, are globally distributed in continental waters (except for Antarctica), where they cover both natural and artificial surfaces. However, fragmentary studies have targeted their microbiome, making it difficult to test hypotheses about sponge-microbe specificity and metabolic relationships, along with the environmental factors playing key roles in structuring the associated microbial communities. To date, particular attention has been paid to sponges (family <i>Lubomirskiidae</i>) that are endemic to Lake Baikal. Few other freshwater sponge species (e.g., <i>Ephydatia</i> spp., <i>Eunapius</i> spp., and <i>Spongilla lacustris</i>), from lakes and rivers spanning from Europe to South and North America, have been targeted for microbiological studies. Representatives of the phyla <i>Proteobacteria</i>, <i>Bacteroidetes</i>, and <i>Actinobacteria</i> largely predominated, and high differences were reported between the microbiome of freshwater and marine sponges. Several bacterial strains isolated from freshwater sponges can produce bioactive compounds, mainly showing antibiotic activities, with potential application in biotechnology. Understanding the roles played by sponge microbiomes in freshwater ecosystems is still in its infancy and has yet to be clarified to disentangle the ecological and evolutionary significance of these largely under-investigated microbial communities. This review was aimed at providing the main available information on the composition and biotechnological potential of prokaryotic communities associated with healthy freshwater sponges, as a neglected component of the global sponge microbiome, to stimulate researchers interested in the field.
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spelling doaj.art-284d56b07e604a2bb3d4cb1a31230b1a2024-01-29T14:05:36ZengMDPI AGMicroorganisms2076-26072023-12-011212510.3390/microorganisms12010025Freshwater Sponges as a Neglected Reservoir of Bacterial BiodiversityAngelina Lo Giudice0Carmen Rizzo1Institute of Polar Sciences, National Research Council (CNR.ISP), Spianata S. Raineri 86, 98122 Messina, ItalyInstitute of Polar Sciences, National Research Council (CNR.ISP), Spianata S. Raineri 86, 98122 Messina, ItalyFreshwater sponges (Spongillida: Demospongiae), including more than 240 described species, are globally distributed in continental waters (except for Antarctica), where they cover both natural and artificial surfaces. However, fragmentary studies have targeted their microbiome, making it difficult to test hypotheses about sponge-microbe specificity and metabolic relationships, along with the environmental factors playing key roles in structuring the associated microbial communities. To date, particular attention has been paid to sponges (family <i>Lubomirskiidae</i>) that are endemic to Lake Baikal. Few other freshwater sponge species (e.g., <i>Ephydatia</i> spp., <i>Eunapius</i> spp., and <i>Spongilla lacustris</i>), from lakes and rivers spanning from Europe to South and North America, have been targeted for microbiological studies. Representatives of the phyla <i>Proteobacteria</i>, <i>Bacteroidetes</i>, and <i>Actinobacteria</i> largely predominated, and high differences were reported between the microbiome of freshwater and marine sponges. Several bacterial strains isolated from freshwater sponges can produce bioactive compounds, mainly showing antibiotic activities, with potential application in biotechnology. Understanding the roles played by sponge microbiomes in freshwater ecosystems is still in its infancy and has yet to be clarified to disentangle the ecological and evolutionary significance of these largely under-investigated microbial communities. This review was aimed at providing the main available information on the composition and biotechnological potential of prokaryotic communities associated with healthy freshwater sponges, as a neglected component of the global sponge microbiome, to stimulate researchers interested in the field.https://www.mdpi.com/2076-2607/12/1/25freshwater spongesbacterial communitiesbacterial isolatesbacterial symbiontsbiotechnological potentialbiodiversity
spellingShingle Angelina Lo Giudice
Carmen Rizzo
Freshwater Sponges as a Neglected Reservoir of Bacterial Biodiversity
Microorganisms
freshwater sponges
bacterial communities
bacterial isolates
bacterial symbionts
biotechnological potential
biodiversity
title Freshwater Sponges as a Neglected Reservoir of Bacterial Biodiversity
title_full Freshwater Sponges as a Neglected Reservoir of Bacterial Biodiversity
title_fullStr Freshwater Sponges as a Neglected Reservoir of Bacterial Biodiversity
title_full_unstemmed Freshwater Sponges as a Neglected Reservoir of Bacterial Biodiversity
title_short Freshwater Sponges as a Neglected Reservoir of Bacterial Biodiversity
title_sort freshwater sponges as a neglected reservoir of bacterial biodiversity
topic freshwater sponges
bacterial communities
bacterial isolates
bacterial symbionts
biotechnological potential
biodiversity
url https://www.mdpi.com/2076-2607/12/1/25
work_keys_str_mv AT angelinalogiudice freshwaterspongesasaneglectedreservoirofbacterialbiodiversity
AT carmenrizzo freshwaterspongesasaneglectedreservoirofbacterialbiodiversity