The Mediterranean non-indigenous ascidian Polyandrocarpa zorritensis : Microbiological accumulation capability and environmental implications

Stabili, Loredana; Licciano, Margherita; Longo, Caterina; Lezzi, Marco; Giangrande, Adriana

doi:10.1016/j.marpolbul.2015.11.005

Cited by 12 publications

(8 citation statements)

References 48 publications

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“…Ascidians also appear to selectively accumulate specific microbes from the surrounding seawater, as rare seawater microbes have been shown to be enriched in ascidian tunics 31 . More relevant to this particular study, the ascidian Polyandrocarpa zorritensis has been shown to accumulate pollution indicator microbes directly from seawater 17 , suggesting horizontal transmission may also play a role in construction of the microbiome of introduced ascidians. Indeed, in the current study, most universal ascidian symbiont OTUs (80.3%) were also detected in the seawater, with some of these OTUs matching identically (100% pairwise identity) to sequences previously reported from seawater samples or sponge tissue within the same region 39 .…”

Section: Discussionmentioning

confidence: 96%

“…Harbor systems frequently exhibit polluted conditions, yet many nonnative ascidians persist and even thrive within these habitats, exhibiting tolerance to sewage, surface runoff 7 , and toxic heavy metals 15 . Additionally, once introduced, many ascidians possess a broad range of environmental tolerances that enhance long-term survival, including resistance to wide fluctuations in temperature 7 , 15 , 16 , salinity 15 , 16 , and both organic 13 , 17 and inorganic pollution 15 . Many introduced ascidians are characterized by high growth rates and high fecundity, leading to increases in local abundance 14 .…”

Section: Introductionmentioning

confidence: 99%

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Introduced ascidians harbor highly diverse and host-specific symbiotic microbial assemblages

Evans

Erwin

Shenkar

et al. 2017

Sci Rep

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Many ascidian species have experienced worldwide introductions, exhibiting remarkable success in crossing geographic borders and adapting to local environmental conditions. To investigate the potential role of microbial symbionts in these introductions, we examined the microbial communities of three ascidian species common in North Carolina harbors. Replicate samples of the globally introduced species Distaplia bermudensis, Polyandrocarpa anguinea, and P. zorritensis (n = 5), and ambient seawater (n = 4), were collected in Wrightsville Beach, NC. Microbial communities were characterized by next-generation (Illumina) sequencing of partial (V4) 16S rRNA gene sequences. Ascidians hosted diverse symbiont communities, consisting of 5,696 unique microbial OTUs (at 97% sequenced identity) from 44 bacterial and three archaeal phyla. Permutational multivariate analyses of variance revealed clear differentiation of ascidian symbionts compared to seawater bacterioplankton, and distinct microbial communities inhabiting each ascidian species. 103 universal core OTUs (present in all ascidian replicates) were identified, including taxa previously described in marine invertebrate microbiomes with possible links to ammonia-oxidization, denitrification, pathogenesis, and heavy-metal processing. These results suggest ascidian microbial symbionts exhibit a high degree of host-specificity, forming intimate associations that may contribute to host adaptation to new environments via expanded tolerance thresholds and enhanced holobiont function.

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Section: Discussionmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

Introduced ascidians harbor highly diverse and host-specific symbiotic microbial assemblages

Evans

Erwin

Shenkar

et al. 2017

Sci Rep

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“…To prevent pathogen-related aquaculture diseases and the potential contamination of aquaculture products by pathogens, bioremediation is an attractive option in aquaculture ecosystems. In particular, filter-feeder invertebrates, such as sponges, polychaetes, and ascidians, due to their ability to remove pathogenic bacteria through the filtration process, have recently been proposed as potential bioremediators [31,[65][66][67][68][69][70][71][72][73][74].…”

Section: Discussionmentioning

confidence: 99%

Bioremediation Capabilities of Hymeniacidon perlevis (Porifera, Demospongiae) in a Land-Based Experimental Fish Farm

Longo

Pierri

Mercurio

et al. 2022

JMSE

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The expansion of aquaculture practices in coastal areas can alter the balance of microbial communities in nearby marine ecosystems with negative impacts on both farmed and natural species, as well as on human health through their consumption. Among marine filter-feeder invertebrates, poriferans are known as effective microbial bioremediators, even though they are currently still underutilized in association with fish mariculture plants. In this study, we investigate the microbial bioremediation capability of the demosponge Hymeniacidon perlevis in an experimental land-based fish farm where this species occurred consistently in the drainage conduit of the wastewater. Microbiological analyses of cultivable vibrios, total culturable bacteria (37 °C), fecal and total coliforms, and fecal enterococci were carried out on the fish farm wastewater in two sampling periods: autumn and spring. The results showed that H. perlevis is able to filter and remove all the considered bacterial groups from the wastewater, including human potential pathogens, in both sampling periods. This finding sustains the hypothesis of H. perlevis use as a bioremediator in land-based aquaculture plants as well.

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“…P. zorritensis , described for the first time in Peru (Van Name, 1931), has been reported in the last decades at sites all over the world, especially in harbors (Carman et al 2011; Lambert and Lambert 2003). In the Mediterranean Sea, P. zorritensis has been recorded in Italy (Brunetti, 1978; Brunetti and Mastrototaro 2004; Mastrototaro et al 2008; Stabili et al 2015), Spain (Turon and Becerro 1992) and very recently in France, in the Thau pond (reported on the DORIS website https://doris.ffessm.fr/Especes/Polyandrocarpa-zorritensis-Polyandrocarpe-de-Zorritos-5004).…”

Section: Discussionmentioning

confidence: 99%

“…P. zorritensis, described for the first time in Peru (Van Name, 1931), has been reported in the last decades at sites all over the world, especially in harbors (Carman et al 2011;Lambert and Lambert 2003). In the Mediterranean Sea, P. zorritensis has been recorded in Italy (Brunetti, 1978;Brunetti and Mastrototaro 2004;Mastrototaro et al 2008;Stabili et al 2015), Spain (Turon and Becerro 1992) Tolerance to a range of environmental conditions has been proposed to help account for its invasive success. The physiological responses to abiotic parameters such as light, pressure, and salinity have been investigated in the larvae of P. zorritensis (Sumida et al 2015;Young, 1996, 1998) but these results were insufficient to explain the rapid expansion of this species.…”

Section: Ecological Consequences For Dormancy In Clonal Speciesmentioning

confidence: 99%

Comparing dormancy in two distantly related tunicates reveals morphological, molecular, and ecological convergences and repeated co-option

Hiebert

Scelzo

Alié

et al. 2022

Preprint

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Many asexually-propagating marine invertebrates can survive extreme environmental conditions by developing dormant structures, i.e., morphologically simplified bodies that retain the capacity to completely regenerate a functional adult when conditions return to normal. Here, we examine the environmental, morphological, and molecular characteristics of dormancy in two distantly related clonal tunicate species: Polyandrocarpa zorritensis and Clavelina lepadiformis. In both species, we report that the dormant structures are able to withstand harsher temperature and salinity conditions compared to the adult, and are the dominant forms these species employ to survive during the colder winter months. By finely controlling the entry and exit of dormancy in laboratory-reared individuals, we were able to select and characterize the morphology of dormant structures associated with their transcriptome dynamics. In both species, we identified putative stem and nutritive cells in structures that resemble the earliest stages of asexual propagation. By characterizing gene expression during dormancy and regeneration into the adult body plan (i.e., germination), we observed that genes which control dormancy and environmental sensing in other metazoans, notably HIF-α and insulin signaling genes, are also expressed in tunicate dormancy. Germination-related genes in these two species, such as the retinoic acid pathway, are also found in other unrelated clonal tunicates during asexual development. These results are suggestive of repeated exaptation of conserved eco-physiological and regeneration programs for the origin of novel dormancy-germination processes across distantly related animal taxa.

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The Mediterranean non-indigenous ascidian Polyandrocarpa zorritensis : Microbiological accumulation capability and environmental implications

Cited by 12 publications

References 48 publications

Introduced ascidians harbor highly diverse and host-specific symbiotic microbial assemblages

Introduced ascidians harbor highly diverse and host-specific symbiotic microbial assemblages

Bioremediation Capabilities of Hymeniacidon perlevis (Porifera, Demospongiae) in a Land-Based Experimental Fish Farm

Comparing dormancy in two distantly related tunicates reveals morphological, molecular, and ecological convergences and repeated co-option

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