Keyword search (4,163 papers available)

"Gélinas Y" Authored Publications:

Title Authors PubMed ID
1 Lignin phenol abundances and ratios are modulated by their interactions with iron hydroxides in sediments Moritz A; Ezzati M; Gélinas Y; 41500137
CHEMBIOCHEM
2 Isolation of Marine Bacteria through a "Bait" Approach Pakseresht B; Schiffman Z; McLatchie S; Coulombe P; Soullane S; Imfeld A; Gélinas Y; Walsh D; Findlay B; 41297029
CHEMBIOCHEM
3 Insights from multiple stable isotopes (C, N, Cl) into the photodegradation of herbicides atrazine and metolachlor Levesque-Vargas M; Ohlund L; Sleno L; Gélinas Y; Höhener P; Ponsin V; 39716600
CHEMBIOCHEM
4 Isotopic and molecular analyses of n-alkanes in a temporal study of coastal sediment contributions to organic carbon degradation induced by algal bloom and terrestrial runoff Mirzaei Y; Douglas PMJ; Gélinas Y; 39700996
CHEMBIOCHEM
5 Investigating the kinetics of marine and terrestrial organic carbon incorporation and degradation in coastal bulk sediment and water settings through isotopic lenses Mirzaei Y; Gélinas Y; 39117203
CHEMBIOCHEM
6 Organic matter preservation through complexation with iron minerals in two basins of a dimictic boreal lake with contrasting deep water redox regimes Joshani A; Mirzaei Y; Barber A; Balind K; Gobeil C; Gélinas Y; 38499107
CHEMBIOCHEM
7 Using 13C enriched acetate in isotope labelling incubation experiments: a note of caution Leone F; Imfeld A; Mirzaei Y; Gélinas Y; 38097918
CHEMBIOCHEM
8 Deep ocean microbial communities produce more stable dissolved organic matter through the succession of rare prokaryotes LaBrie R; Péquin B; Fortin St-Gelais N; Yashayaev I; Cherrier J; Gélinas Y; Guillemette F; Podgorski DC; Spencer RGM; Tremblay L; Maranger R; 35857452
CHEMBIOCHEM
9 Pre- and post-industrial levels of polycyclic aromatic hydrocarbons in sediments from the Estuary and Gulf of St. Lawrence (eastern Canada) Corminboeuf A; Montero-Serrano JC; St-Louis R; Dalpé A; Gélinas Y; 34871900
CHEMBIOCHEM
10 Elemental, isotopic, and spectroscopic assessment of chemical fractionation of dissolved organic matter sampled with a portable reverse osmosis system. Ouellet A, Catana D, Plouhinec JB, Lucotte M, Gélinas Y 18504986
CHEMBIOCHEM
11 Anthropogenic and natural methane emissions from a shale gas exploration area of Quebec, Canada. Pinti DL, Gelinas Y, Moritz AM, Larocque M, Sano Y 27267724
CHEMBIOCHEM
12 Persistence of Escherichia coli in batch and continuous vermicomposting systems. Hénault-Ethier L, Martin VJ, Gélinas Y 27499290
BIOLOGY
13 Food-Web Complexity in Guaymas Basin Hydrothermal Vents and Cold Seeps. Portail M, Olu K, Dubois SF, Escobar-Briones E, Gelinas Y, Menot L, Sarrazin J 27683216
CHEMBIOCHEM
14 Preservation of organic matter in marine sediments by inner-sphere interactions with reactive iron. Barber A, Brandes J, Leri A, Lalonde K, Balind K, Wirick S, Wang J, Gélinas Y 28336935
CHEMBIOCHEM
15 Differences in Riverine and Pond Water Dissolved Organic Matter Composition and Sources in Canadian High Arctic Watersheds Affected by Active Layer Detachments. Wang JJ, Lafrenière MJ, Lamoureux SF, Simpson AJ, Gélinas Y, Simpson MJ 29301070
CHEMBIOCHEM

 

Title:Preservation of organic matter in marine sediments by inner-sphere interactions with reactive iron.
Authors:Barber A,  Brandes J,  Leri A,  Lalonde K,  Balind K,  Wirick S,  Wang J,  Gélinas Y
Link:https://www.ncbi.nlm.nih.gov/pubmed/28336935?dopt=Abstract
Publication:
Keywords:
PMID:28336935 Category:Sci Rep Date Added:2019-05-31
Dept Affiliation: CHEMBIOCHEM
1 GEOTOP and the Department of Chemistry and Biochemistry, Concordia University, 7141 Sherbrooke West, Montréal, Quebec, H4B 1R6, Canada.
2 Skidaway Institute of Oceanography, University of Georgia, 10 Ocean Science Circle, Savannah, GA, 31411, USA.
3 Department of Natural Sciences, Marymount Manhattan College, 221 E 71st St., New York, New York, 10021, USA.
4 National Synchrotron Light Source, Brookhaven National Laboratory, Upton, NY, 11973, USA.
5 Canadian Light Source Inc, Saskatoon, Saskatchewan, S7N 0X4, Canada.
6 GEOTOP and the Department of Chemistry and Biochemistry, Concordia University, 7141 Sherbrooke West, Montréal, Quebec, H4B 1R6, Canada. yves.gelinas@concordia.ca.

Description:

Preservation of organic matter in marine sediments by inner-sphere interactions with reactive iron.

Sci Rep. 2017 03 23;7(1):366

Authors: Barber A, Brandes J, Leri A, Lalonde K, Balind K, Wirick S, Wang J, Gélinas Y

Abstract

Interactions between organic matter and mineral matrices are critical to the preservation of soil and sediment organic matter. In addition to clay minerals, Fe(III) oxides particles have recently been shown to be responsible for the protection and burial of a large fraction of sedimentary organic carbon (OC). Through a combination of synchrotron X-ray techniques and high-resolution images of intact sediment particles, we assessed the mechanism of interaction between OC and iron, as well as the composition of organic matter co-localized with ferric iron. We present scanning transmission x-ray microscopy images at the Fe L3 and C K1 edges showing that the organic matter co-localized with Fe(III) consists primarily of C=C, C=O and C-OH functional groups. Coupling the co-localization results to iron K-edge X-ray absorption spectroscopy fitting results allowed to quantify the relative contribution of OC-complexed Fe to the total sediment iron and reactive iron pools, showing that 25-62% of total reactive iron is directly associated to OC through inner-sphere complexation in coastal sediments, as much as four times more than in low OC deep sea sediments. Direct inner-sphere complexation between OC and iron oxides (Fe-O-C) is responsible for transferring a large quantity of reduced OC to the sedimentary sink, which could otherwise be oxidized back to CO2.

PMID: 28336935 [PubMed]




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