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Cited by 95Marine Biology and Ecology ResearchMicrobial Community Ecology and PhysiologyGeochemistry and Elemental Analysis

Distribution of bacteria and associated minerals in the gill chamber of the vent shrimp Rimicaris exoculata and related biogeochemical processes.

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Zbinden, M, Le Bris, N, Gaill, F, Compère, P·2004·Marine Ecology Progress Series
DOI 10.3354/meps284237
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Abstract

The shrimp Rimicaris exoculata dominates the megafauna of some Mid-Atlantic Ridge hydrothermal vent fields. This species harbours a rich bacterial epibiosis inside its gill chamber. At the 'Rainbow' vent site (36degrees 14.0'N), the epibionts are associated with iron oxide deposits. Investigation of both bacteria and minerals by scanning electron microscopy (SEM) and X-ray microanalysis (EDX) revealed 3 distinct compartments in the gill chamber: (1) the lower pre-branchial chamber, housing bacteria but devoid of minerals; (2) the 'true' branchial chamber, containing the gills and devoid of both bacteria and minerals; and (3) the upper pre-branchial chamber, housing the main ectosymbiotic bacterial community and associated mineral deposits. Our chemical and temperature data indicated that abiotic iron oxidation appears to be kinetically inhibited in the environment of the shrimps, which would explain the lack of iron oxide deposits in the first 2 compartments. We propose that iron oxidation is microbially promoted in the third area. The discrepancy between the spatial distribution of bacteria and minerals suggests that different bacterial metabolisms are involved in the first and third compartments. A possible explanation lies in the modification of physico-chemical conditions downstream of the gills that would reduce the oxygen content and favours the development of bacterial iron-oxidizers in this Fe-II-rich environment. A potential role of such iron-oxidizing symbionts in the shrimp diet is suggested. This would be unusual for hydrothermal ecosystems, in which most previously described symbioses rely on sulphide or methane as an energy source.

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  • Adult R. exoculata host episymbiotic bacteria in their cephalothorax and on mouthparts, which are modified and adapted to colonization and growth of the symbiotic bacteria.

    “Adult stages of R. exoculata host episymbiotic bacteria in their cephalothorax (or branchial chamber) and on mouthparts, which are modified and adapted to the colonization and growth of the symbiotic bacteria (Segonzac et al., 1993; Zbinden et al., 2004).”

    From Is It First the Egg or the Shrimp? – Diversity and Variation in Microbial Communities Colonizing Broods of the Vent Shrimp Rimicaris exoculata During Embryonic Development (2019) · cites this paper as Zbinden et al., 2004

    The Introduction and Morphology of bacteria sections report bacterial epibionts on the inner branchial chamber and hypertrophied mouthparts, including bacteriophore setae. The Potential biological role of epibiosis section says the chamber may provide conditions optimal for bacterial growth, but the paper does not establish that the mouthparts are specifically adapted for colonization and growth. Page numbers were not available in our copy. (LLM, conf=0.82)

    Experimental — accuracy not yet measured

  • Rimicaris exoculata shrimps host important communities of chemosynthetic bacteria living in symbiosis with their host inside the cephalothorax and gut.

    “Like many other species from these ecosystems, Rimicaris shrimps host important communities of chemosynthetic bacteria living in symbiosis with their host inside the cephalothorax and gut.”

    From Is It First the Egg or the Shrimp? – Diversity and Variation in Microbial Communities Colonizing Broods of the Vent Shrimp Rimicaris exoculata During Embryonic Development (2019) · cites this paper as Zbinden et al., 2004

    The Introduction describes a rich bacterial community in the gill chamber, and the Shrimp diet section reports chemoautotrophic activity by bacteria on the inner cephalothorax. The paper also notes bacteria in the gut, but treats their autotrophy and nutritional role as suggestions, not an established gut symbiosis. Page numbers are unavailable in our copy. (LLM, conf=0.86)

    Experimental — accuracy not yet measured

  • As embryonic development progresses, bacterial coverage and mineral deposits both appear to follow a gradual progression on eggs and pleopods.

    “As embryonic development progresses, bacterial coverage and mineral deposits both appear to follow a gradual progression on eggs and pleopods, clearly reminiscent of what is observed inside the cephalothorax after molting (Zbinden et al., 2004; Corbari et al., 2008b).”

    From Is It First the Egg or the Shrimp? – Diversity and Variation in Microbial Communities Colonizing Broods of the Vent Shrimp Rimicaris exoculata During Embryonic Development (2019) · cites this paper as Zbinden et al., 2004

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Research works printed but not linked: 1

  1. Juniper SK, Tebo BM (1995) Microbe-metal interactions and mineral deposition at hydrothermal vents. In: Karl D (ed) The microbiology of deep-sea hydrothermal vents. CRC Press, Boca Raton, FL, p 219-253

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Authors
Zbinden, M., Le Bris, N., Gaill, F., & Compère, P.
Affiliations
  • Centre National de la Recherche Scientifique (FR)
  • University of Liège (BE)
Corresponding author
Zbinden, M
ORCID
Venue
Marine Ecology Progress Series
Publisher
Inter-Research Science Center
Published
2004
Volume
284
Pages
237-251
ISSN
  • 0171-8630 (ISSN-L)
  • 1616-1599
DOI
10.3354/meps284237
OpenAlex
W2132081373
Cited by
95
References
51
Citations by year
2026: 1 · 2025: 2 · 2023: 3 · 2022: 4 · 2021: 20 · 2020: 3 · 2019: 6 · 2018: 4 · 2017: 8 · 2016: 3 · 2015: 5 · 2014: 4 · 2012: 4
FWCI
1.96
Type
journal article
Language
en
Open access
Locations
  • Marine Ecology Progress Series (publishedVersion)
  • Institutional Archive of Ifremer (French Research Institute for Exploitation of the Sea) (submittedVersion)
  • ORBi (University of Liège) (submittedVersion)
Funders
Centre National de la Recherche Scientifique
Topics
  • Physical Sciences › Earth and Planetary Sciences › Oceanography › Marine Biology and Ecology Research
  • Physical Sciences › Environmental Science › Ecology › Microbial Community Ecology and Physiology
  • Physical Sciences › Earth and Planetary Sciences › Geochemistry and Petrology › Geochemistry and Elemental Analysis
Keywords
Rimicaris exoculata, hydrothermal vent shrimp, gill chamber, iron oxide deposits, iron oxidation, iron-oxidizing bacteria, ectosymbionts, symbiosis, Mid-Atlantic Ridge, bacterial distribution, chemosynthesis

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