Gymnolaemata bryozoans of Bahia State, Brazil

Almeida, Ana C.S.; Alves, Orane F.S.; Peso-Aguiar, Marlene Campos; Domínguez, José Maria Landim; Souza, Facelucia B.C.

doi:10.1017/s1755267215000743

“…were found in intertidal zones (depth 1-3 m). From what is known of other tropical regions (Almeida et al 2015;Almeida et al 2017;Almeida et al 2018), it is likely that the majority of the hard-shore and coral-associated intertidal zones of the Java Sea would have many more bryozoan species including genus Pleurocodonellina. The study of potential bacteria isolated from bryozoans is not as comprehensive as for other marine organisms such as sponges (Asagabaldan et al 2017), corals (Sibero et al 2019) and ascidians (Ayuningrum et al 2019) in the Java Sea; indeed, no information exists.…”

Section: Discussionmentioning

confidence: 99%

Bacterial isolates from bryozoan Pleurocodonellina sp.: Diversity and antimicrobial potential against pathogenic bacteria

Asagabaldan

¹

,

Bedoux

²

,

Bourgougnon

³

et al. 2019

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Abstract. Asagabaldan MA, Bedoux G, Bourgougnon N, Kristiana R, Ayuningrum D, Sabdono A, Trianto A, Radjasa OK. 2019. Bacterial isolates from bryozoan Pleurocodonellina sp.: Diversity and antimicrobial potential against pathogenic bacteria. Biodiversitas 20: 2528-2535. There is an urgent need to discover new compounds with antibacterial activity, which can be developed into lead structures for the treatment of human disease caused by multidrug-resistant (MDR) bacteria. In this study, we focussed on bryozoan-associated bacteria to screen them toward antibacterial activities, since the microbiome of these organisms can still be regarded as under-investigated. Most of the few publications about bryozoan-associated bacteria focused on taxonomy and the potential as producers of antibacterial natural products were neglected. Four specimens of bryozoan Pleurocodonellina sp. were collected from Teluk Awur, Jepara in Java Sea, Indonesia. Therefrom, 56 bacterial strains were isolated, and 17 displayed antibacterial activities against MDR bacteria Pseudomonas aruginosa, Klebsiella pneumoniae, Acinetobacter baumannii, Enterobacter cloacae, and methicillin-resistant Staphylococcus aureus (MRSA). Taxonomic identification of the bacteria by 16S rRNA gene sequencing revealed them belonging to the genera Virgibacillus, Pseudoalteromonas, Halomonas, and Bacillus. Most interestingly, the genus Virgibacillus was dominantly obtained from the Pleurocodonellina sp. specimens, i.e., 12 active isolates. Nevertheless, the best activities against MDR bacteria (both Gram-positive and Gram-negative) were contributed to isolates showing >99% identity to Pseudoalteromonas. The results further suggest adding the genus Virgibacillus as bacteria associated with bryozoan, since to the best of our knowledge there were no reports of this genus isolated from bryozoan.

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“…Geographic distribution: Widely distributed, including records from Brazil (Marcus, 1937(Marcus, , 1955Braga, 1968;Ramalho, 2006), Uruguay (Obenat et al, 2001;Scarabino, 2006) and Argentina (e.g. Hastings, 1943;Amor & Pallares, 1965;López-Gappa & Lichtschein, 1988;Figuerola et al, 2014) Almeida et al (2015) belonged instead to A. arcuata Winston & Hayward, 2012. This bryozoan grows on tubes of the polychaete Phyllochaetopterus socialis (Obenat et al, 2001;Scarabino, 2006). It was considered as cryptogenic in Uruguay-Argentina by Schwindt et al (2020).…”

Section: Genus Conopeum Gray 1848mentioning

confidence: 99%

Checklist of the marine Bryozoa from Uruguay (Southwest Atlantic)

Ramalho

¹

,

López-Gappa

²

,

Scarabino

³

2022

MACN

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Knowledge of the marine bryozoan fauna of Uruguay is mostly based on scattered records found in local faunistic surveys and the taxonomic results of two oceanographic cruises to the Southwest Atlantic, but a comprehensive study has not yet been published for this area. This paper aims to compile an updated checklist, bringing together all the published information about the Uruguayan bryozoan fauna. Of the 73 recorded taxa, 30 (41%) are known only from deep waters off the Río de la Plata. Even considering undetermined species, these results show the high degree of endemism as it was already shown for several other benthic groups such as Bivalvia, Ascidiacea and Pycnogonida. The absence of local taxonomists on bryozoans has resulted in the unprecedented situation that the deep-sea bryozoan fauna of Uruguay is better known than the coastal and shelf representatives of the phylum. The main conclusion of this faunal compilation is that efforts should be made to coordinate the gathering and taxonomic study of shallow and shelf bryozoan collections to bridge the present knowledge gap about the biodiversity of this important group of marine benthic invertebrates.

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“…Geographic distribution: Widely distributed, including records from Brazil (Marcus, 1937(Marcus, , 1955Braga, 1968;Ramalho, 2006), Uruguay (Obenat et al, 2001;Scarabino, 2006) and Argentina (e.g. Hastings, 1943;Amor & Pallares, 1965;López-Gappa & Lichtschein, 1988;Figuerola et al, 2014) Almeida et al (2015) belonged instead to A. arcuata Winston & Hayward, 2012. This bryozoan grows on tubes of the polychaete Phyllochaetopterus socialis (Obenat et al, 2001;Scarabino, 2006). It was considered as cryptogenic in Uruguay-Argentina by Schwindt et al (2020).…”

Section: Genus Conopeum Gray 1848mentioning

confidence: 99%

Checklist of the marine Bryozoa from Uruguay (Southwest Atlantic)

Ramalho

¹

,

López-Gappa

²

,

Scarabino

³

2022

MACN

1

0

View full text Add to dashboard Cite

Knowledge of the marine bryozoan fauna of Uruguay is mostly based on scattered records found in local faunistic surveys and the taxonomic results of two oceanographic cruises to the Southwest Atlantic, but a comprehensive study has not yet been published for this area. This paper aims to compile an updated checklist, bringing together all the published information about the Uruguayan bryozoan fauna. Of the 73 recorded taxa, 30 (41%) are known only from deep waters off the Río de la Plata. Even considering undetermined species, these results show the high degree of endemism as it was already shown for several other benthic groups such as Bivalvia, Ascidiacea and Pycnogonida. The absence of local taxonomists on bryozoans has resulted in the unprecedented situation that the deep-sea bryozoan fauna of Uruguay is better known than the coastal and shelf representatives of the phylum. The main conclusion of this faunal compilation is that efforts should be made to coordinate the gathering and taxonomic study of shallow and shelf bryozoan collections to bridge the present knowledge gap about the biodiversity of this important group of marine benthic invertebrates.

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Gymnolaemata bryozoans of Bahia State, Brazil

Cited by 7 publications

References 19 publications

Bacterial isolates from bryozoan Pleurocodonellina sp.: Diversity and antimicrobial potential against pathogenic bacteria

Bacterial isolates from bryozoan Pleurocodonellina sp.: Diversity and antimicrobial potential against pathogenic bacteria

Checklist of the marine Bryozoa from Uruguay (Southwest Atlantic)

Checklist of the marine Bryozoa from Uruguay (Southwest Atlantic)

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