2019
DOI: 10.1111/1462-2920.14729
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Hydrothermal vent protistan distribution along the Mariana arc suggests vent endemics may be rare and novel

Abstract: Summary Elucidation of the potential roles of single‐celled eukaryotes (protists) in ecosystem function and trophodynamics in hydrothermal vent ecosystems is reliant on information regarding their abundance, distribution and preference for vent habitats. Using high‐throughput 18S rRNA gene sequencing on a diverse suite of hydrothermally influenced and background water samples, we assess the diversity and distribution of protists and identify potential vent endemics. We found that 95% of the recovered sequences… Show more

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Cited by 23 publications
(28 citation statements)
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References 98 publications
(143 reference statements)
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“…Members of these classes are known to form close associations with methanogens or bacteria (33,34). Taxonomic groups within ciliates and other alveolates, rhizaria (radiolaria and cercozoa), amoebozoa, apusozoa, and excavates that were detected primarily in the resident population include species that are candidates in future efforts to understand the functional traits among hydrothermal vent endemic protists; many of these same groups have previously been identified as including vent endemic species (17). Heterotrophic nanoflagellate members of the stramenopile supergroup were overwhelmingly MArine STramenopiles (MAST, in cosmopolitan and resident populations) or Cafeteriaceae (primarily in the near vent bottom water samples) ( Figure 3); both are recognized as important bacterivores with a global distribution and often found in mesopelagic and deep sea surveys (35)(36)(37).…”
Section: Protistan Grazers Exert Predation Pressure On Hydrothermal Vmentioning
confidence: 99%
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“…Members of these classes are known to form close associations with methanogens or bacteria (33,34). Taxonomic groups within ciliates and other alveolates, rhizaria (radiolaria and cercozoa), amoebozoa, apusozoa, and excavates that were detected primarily in the resident population include species that are candidates in future efforts to understand the functional traits among hydrothermal vent endemic protists; many of these same groups have previously been identified as including vent endemic species (17). Heterotrophic nanoflagellate members of the stramenopile supergroup were overwhelmingly MArine STramenopiles (MAST, in cosmopolitan and resident populations) or Cafeteriaceae (primarily in the near vent bottom water samples) ( Figure 3); both are recognized as important bacterivores with a global distribution and often found in mesopelagic and deep sea surveys (35)(36)(37).…”
Section: Protistan Grazers Exert Predation Pressure On Hydrothermal Vmentioning
confidence: 99%
“…Heterotrophic nanoflagellate members of the stramenopile supergroup were overwhelmingly MArine STramenopiles (MAST, in cosmopolitan and resident populations) or Cafeteriaceae (primarily in the near vent bottom water samples) ( Figure 3); both are recognized as important bacterivores with a global distribution and often found in mesopelagic and deep sea surveys (35)(36)(37). MAST have also been found at higher relative sequence abundances within the Mariana Arc vent ecosystem and hydrothermally influenced water masses within Okinawa Trough (17,28).…”
Section: Protistan Grazers Exert Predation Pressure On Hydrothermal Vmentioning
confidence: 99%
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“…In the last several decades, the development of the culture-independent high throughput sequencing (HTS) approaches offered a technical alternative to solve, at least partially, the above problems (Hudson, 2008). HTS has expanded our knowledge of the genetic diversity and community composition of microbial eukaryotes in sediments of coastal oceans (Gong et al, 2015;Massana et al, 2015;Salonen et al, 2019), hydrothermal vents (Edgcomb et al, 2002;López-García et al, 2007;Brisbin et al, 2019;Murdock and Juniper, 2019), cold seep (Sauvadet et al, 2010;Pasulka et al, 2016), deep-sea (Bik et al, 2012;Wu and Huang, 2019), and anoxic environments (Dawson and Pace, 2002;Stoeck and Epstein, 2003;Takishita et al, 2005). Based on the limited amount of data collected so far, it has been proposed that marine sediments harbor huge, yet largely unknown diversity of microbial eukaryotic assemblages whose diversity may be comparable or even exceed that of the planktonic groups (Scheckenbach et al, 2010;Bik et al, 2012;Forster et al, 2016).…”
Section: Introductionmentioning
confidence: 99%
“…This Mini Review covers, unless stated otherwise, the recent and larger body of work that unequivocally links the rare status of prokaryotic populations with genotypic traits and activities of potential use in bioremediation and bioprospection. We direct the reader to the reviews by Weisse (2014) and Logares et al (2015) and the reports by Ziegler et al (2018) and Murdock and Juniper (2019) for current insights into the ecology of rare microeukaryotes.…”
Section: Introductionmentioning
confidence: 99%