Two new sponge species (Demospongiae: Chalinidae and Suberitidae) isolated from hyperarid mangroves of Qatar with notes on their potential antibacterial bioactivity

Giraldes, Bruno Welter; Goodwin, Claire; Al-Fardi, Noora A. A.; Engmann, Amanda; Leitão, Alexandra; Ahmed, Ashfaq; Ahmed, Kamelia O.; Abdulkader, Hadil A.; Al-Korbi, Halah A.; Easa, Hala Sultan Saif Al; Eltai, Nahla O.; Hanifi-Moghaddam, Pejman

doi:10.1371/journal.pone.0232205

Cited by 11 publications

(7 citation statements)

References 52 publications

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“…The remaining studies regarding sponge-associated microorganisms in the Arabian Gulf focused on their potential applications in biotechnology using either direct sponge extract or few isolates (7–12 isolates) associated with the tested sponge samples. A recent study from the west coast of the Arabian Gulf, specifically from a hyperarid mangrove region in Qatar, investigated the antimicrobial activity of two sponge samples ( Giraldes et al, 2020 ). On the other hand, a wide range of culturable sponge-associated microorganisms (or sponge crude extract) from coast of Iran with potential biotechnological applications were investigated to assess their antimicrobial abilities, bio-degradation potential and cytotoxic properties ( Safaeian et al, 2009 ; Khakshoor and Pazooki, 2014 ; Nazemi et al, 2014a , b ; Pazooki and Khakshoor, 2015 ; Salimi et al, 2015 ; Ebadi and Sanati, 2016 ; Zarei et al, 2017 ; Karimpoor et al, 2018 ; Shushizadeh et al, 2018 ).…”

Section: Discussionmentioning

confidence: 99%

Identification of Sponge-Associated Bacteria From the Coast of Kuwait and Their Potential Biotechnological Applications

Abbas

Mahmoud

2022

Front. Microbiol.

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Sponges are among the most ancient animals harboring complex microbial communities with potential applications in biotechnology. The Arabian Gulf is a thermally stressed enclosed body of water located in an arid region where sponges and their halobionts are understudied. This study combined 16S rRNA next-generation gene amplicon sequencing and cultivation techniques to explore the abundance and diversity of sponge-associated bacteria. Culture-independent techniques showed the associations of more than 25 bacterial phyla with Amphimedon sp., Chondrilla australiensis, Haliclona sp., and Niphates spp. Regarding cultivable bacteria, 315 bacterial isolates associated with the sponge Haliclona sp. were cultivated; these isolates were affiliated with the phyla Proteobacteria and Firmicutes and were distributed among six bacterial genera. Selected strains of Bacillus, Ferrimonas, Pseudovibrio, Shewanella, Spongiobacter, and Vibrio were tested for antimicrobial activity against indicator microorganisms and protease enzyme production. Seven Bacillus strains exhibited weak to moderate growth inhibition against Bacillus subtilis, Staphylococcus aureus, and Candida albicans. Furthermore, 29 different strains of Bacillus, Ferrimonas, Shewanella, and Vibrio exhibited different degrees of positive protease activity. In addition, cultivated strains of Bacillus, Shewanella, Pseudovibrio, and Vibrio were tested for their biomineralization abilities. Herein we report for the first time the isolation of biomineralizing bacteria from sponge tissue where eleven bacterial isolates produced different shapes of calcium carbonate crystals on agar. Our observations shed light on the diversity and biotechnological potentials of sponges-associated bacteria inhabiting one of the world’s hottest seas.

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Section: Discussionmentioning

confidence: 99%

Identification of Sponge-Associated Bacteria From the Coast of Kuwait and Their Potential Biotechnological Applications

Abbas

Mahmoud

2022

Front. Microbiol.

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“…Another study was performed on two fractions, namely, A (aqueous extract) and B (methanol extract), isolated from the sponge Suberites iona, sampled from the Persian Arabic Gulf (PAG), which lives in hyperthermic and hypersalinic conditions. These fractions demonstrated activity not only against S. aureus but also against Enterococcus faecalis [82]. Interesting results were obtained by Tsujii and Rinehar [44], testing two indole alkaloids (topsentin and bromotopsentin) extracted from several samples of sponges belonging to the genus Spongosorites, collected in the Bahamas.…”

Section: Antibacterial and Antiviral Activitiesmentioning

confidence: 92%

Marine Demospongiae: A Challenging Treasure of Bioactive Compounds

et al. 2022

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In the last decades, it has been demonstrated that marine organisms are a substantial source of bioactive compounds with possible biotechnological applications. Marine sponges, in particular those belonging to the class of Demospongiae, have been considered among the most interesting invertebrates for their biotechnological potential. In this review, particular attention is devoted to natural compounds/extracts isolated from Demospongiae and their associated microorganisms with important biological activities for pharmacological applications such as antiviral, anticancer, antifouling, antimicrobial, antiplasmodial, antifungal and antioxidant. The data here presented show that this class of sponges is an exciting source of compounds, which are worth developing into new drugs, such as avarol, a hydroquinone isolated from the marine sponge Disidea avara, which is used as an antitumor, antimicrobial and antiviral drug.

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“…Regional habitat mapping, especially in offshore areas [ 15 ], could better pinpoint the status, trends and recovery capacity of habitats along with the sensitivity of migratory species and ecosystem engineers, such as dugongs. There is high marine endemism in some Gulf marine environments, and the trophic cascades that may arise from endemic species' disappearances are not well understood [ 16 ].…”

Section: Recognizing Common Challengesmentioning

confidence: 99%

Expanding ocean protection and peace: a window for science diplomacy in the Gulf

Fieseler,

Al-Mudaffar Fawzi,

Helmuth

et al. 2023

R. Soc. open sci.

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The ecological state of the Persian or Arabian Gulf (hereafter ‘Gulf') is in sharp decline. Calls for comprehensive ecosystem-based management approaches and transboundary conservation have gone largely unanswered, despite mounting marine threats made worse by climate change. The region's long-standing political tensions add additional complexity, especially now as some Gulf countries will soon adopt ambitious goals to protect their marine environments as part of new global environmental commitments. The recent interest in global commitments comes at a time when diplomatic relations among all Gulf countries are improving. There is a window of opportunity for Gulf countries to meet global marine biodiversity conservation commitments, but only if scientists engage in peer-to-peer diplomacy to build trust, share knowledge and strategize marine conservation options across boundaries. The Gulf region needs more ocean diplomacy and coordination; just as critically, it needs actors at its science-policy interface to find better ways of adapting cooperative models to fit its unique marine environment, political context and culture. We propose a practical agenda for scientist-led diplomacy in the short term and lines of research from which to draw (e.g. co-production, knowledge exchange) to better design future science diplomacy practices and processes suited to the Gulf's setting.

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Two new sponge species (Demospongiae: Chalinidae and Suberitidae) isolated from hyperarid mangroves of Qatar with notes on their potential antibacterial bioactivity

Cited by 11 publications

References 52 publications

Identification of Sponge-Associated Bacteria From the Coast of Kuwait and Their Potential Biotechnological Applications

Identification of Sponge-Associated Bacteria From the Coast of Kuwait and Their Potential Biotechnological Applications

Marine Demospongiae: A Challenging Treasure of Bioactive Compounds

Expanding ocean protection and peace: a window for science diplomacy in the Gulf

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