Temporal and spatial constraints on community assembly during microbial colonization of wood in seawater

Download

10.1038ismej.2015.61.pdf

Date

2015-12-01

Author

KALENİTCHENKO, Dimitri
Fagervold, Sonja K.
Pruski, Audrey M.
VÉTİON, Gilles
Yücel, Mustafa
LE BRİS, Nadine
Galand, Pierre E.

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

122
views

90
downloads

Wood falls on the ocean floor form chemosynthetic ecosystems that remain poorly studied compared with features such as hydrothermal vents or whale falls. In particular, the microbes forming the base of this unique ecosystem are not well characterized and the ecology of communities is not known. Here we use wood as a model to study microorganisms that establish and maintain a chemosynthetic ecosystem. We conducted both aquaria and in situ deep-sea experiments to test how different environmental constraints structure the assembly of bacterial, archaeal and fungal communities. We also measured changes in wood lipid concentrations and monitored sulfide production as a way to detect potential microbial activity. We show that wood falls are dynamic ecosystems with high spatial and temporal community turnover, and that the patterns of microbial colonization change depending on the scale of observation. The most illustrative example was the difference observed between pine and oak wood community dynamics. In pine, communities changed spatially, with strong differences in community composition between wood microhabitats, whereas in oak, communities changed more significantly with time of incubation. Changes in community assembly were reflected by changes in phylogenetic diversity that could be interpreted as shifts between assemblies ruled by species sorting to assemblies structured by competitive exclusion. These ecological interactions followed the dynamics of the potential microbial metabolisms accompanying wood degradation in the sea. Our work showed that wood is a good model for creating and manipulating chemosynthetic ecosystems in the laboratory, and attracting not only typical chemosynthetic microbes but also emblematic macrofaunal species.

Subject Keywords

SP-NOV., EMENDED DESCRIPTION, MEDITERRANEAN-SEA, MARINE-SEDIMENTS, RIBOSOMAL-RNA, SUNKEN WOODS, ECOLOGY, FUNGI, DIVERSITY, IDENTIFICATION

URI

https://hdl.handle.net/11511/32175

Journal

ISME JOURNAL

DOI

https://doi.org/10.1038/ismej.2015.61

Collections

Graduate School of Marine Sciences, Article

Suggestions

OpenMETU
Core

Size-based diel migration of zooplankton in Mediterranean shallow lakes assessed from in situ experiments with artificial plants Tavsanoglu, Ulku Nihan; Brucet, Sandra; Levi, Eti Ester; Bucak, Tuba; Bezirci, Gizem; Ozen, Arda; Johansson, Liselotte S.; Jeppesen, Erik; Beklioğlu, Meryem (2015-07-01) In warm lakes, fish aggregate within macrophytes, thereby weakening the role of these as a daytime refuge for zooplankton and altering the zooplankton size structure, predation pressure, and water clarity. To elucidate the role of macrophytes as a refuge for zooplankton and their effect on zooplankton size distribution, we established three sets of strandardized artificial plant beds in 11 lakes in Turkey with contrasting fish predation risk and turbidity. Zooplankton were sampled within and outside of each...
Spatial and temporal variability in the chemical properties of the oxic and suboxic layers of the Black Sea Tuğrul, Süleyman; Murray, James W.; Friederich, Gernot E.; Salihoglu, Ilkay (Elsevier BV, 2014-07-01) The Black Sea, a land-locked deep basin with sulfide bearing waters below 150-200 m, has been subject to anthropogenic pressures since the 1970s. Large inputs of nutrients (nitrate - N, phosphate - P, silicate - Si) with high N/P but low Si/N ratios and subsequent development of intensive eutrophication over the basin have changed vertical distributions and inventories of nutrients and redox-sensitive metals in the oxic, suboxic and anoxic layers. Chemical data sets obtained between 1988 and 2010, and older...
Spatial distribution and source identification of persistent organic pollutants in the sediments of the Yesilirmak River and coastal area in the Black Sea Dinc, Burak; ÇELEBİ, AHMET; Avaz, Gulsen; Canl, Oltan; Guzel, Baris; EREN, BEYTULLAH; Yetiş, Ülkü (2021-11-01) Surface sediments from the Yes,ilirmak River and the near coastal area in the Black Sea were collected using sediment traps to assess the spatial distributions of persistent organic pollutants and find their potential sources. Analyses were carried out to determine the concentrations of the persistent organic pollutants of seventeen polychlorinated dibenzo-p-dioxins and dibenzofurans, sixteen polycyclic aromatic hydrocarbons, seven polychlorinated biphenyls, and eight organochlorine pesticides using high-re...
Temporal and spatial changes in the abundance and biomass of pico (heterotrophic bacteria & synechococcus) and nanoplankton (flagellates) of the Mersin Bay – relationships with ambient physical, chemical and biological parameters Gazihan Akoğlu, Ayşe; Uysal, Zahit; Department of Marine Biology and Fisheries (2011) The eastern Mediterranean has been known as the most oligotrophic water body among the worlds oceans and as a result of limited nutrient inputs from terrestrial sources primary productivity and plankton succession are restricted by lack of nutrients especially by phosphorus and nitrogen. Within this domain, Mersin bay forms a so called hot spot (highly sensitive) area where a sharp contrast exists between the coastal area supplied by land-based nutrient sources and the nutrient limited open sea. Excess nutr...
Implementation of Antarctic Krill into the Ocean-Ecosystem Model FESOM-REcoM-2 and its Effects on Southern Ocean Biogeochemistry. Karakus, Onur; Hauck, Judith; Völker, Christoph; Fach Salihoğlu, Bettina Andrea; Hagen, Wilhelm (2020-01-16) In this study, a three-dimensional, coupled ocean ecosystem model (FESOM- REcoM2) is used to investigate the effect of krill on the biogeochemistry of the Southern Ocean. The implementation of Antarctic krill in the model was done in three steps. 1) A second zooplankton group was implemented, which grazes on diatoms, mesozooplankton and nanophytoplankton (in order of descending preference). 2) A new detritus group was added to the model, which represents faster-sinking krill faecal pellets. 3) The grazing i...

Citation Formats

D. KALENİTCHENKO et al., “Temporal and spatial constraints on community assembly during microbial colonization of wood in seawater,” ISME JOURNAL, pp. 2657–2670, 2015, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/32175.