25th International Meeting on Organic Geochemistry IMOG 2011

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P-437 Microbial community shifts at temperature and geochemical gradients at sulfur-rich shallow hydrothermal vents offshore Panarea Island, Sicily Florence Schubotz 1,4 , Chia-I Huang 2 , Gunter Wegener 2 , Jan P. Amend 3 , Roy Price 3 , Thomas Holler 2 , Anke Meyerdierks 2 , Rudolf Amann 2 , Roger E. Summons 4 , Kai-Uwe Hinrichs 1 1 Department of Geosciences and MARUM - Center for Marine Environmental Sciences, Bremen, Germany, 2 Max-Planck Institute for Marine Microbiology, Bremen, Germany, 3 Department of Earth, Atmospheric and Planetary Sciences, Washington University, St. Louis, Germany, 4 Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, United States of America (corresponding author:schubotz@uni-bremen.de) The active volcanic islands of the Eolian Archipelago north of Sicily, Italy, have been used for many decades as a natural laboratory for the study of thermophilic Bacteria and Archaea [1]. Most recently, the shallow marine hydrothermal vents off the coast of Panarea Island have attracted attention due to a submarine volcanic exhalative event in 2002. Some sites (Blackpoint) are characterized by vigorous venting with maximum temperatures of up to 135°C, whereas other sites exhibit more diffusive venting with temperatures ranging from 40 to 70°C (Hot Lake). The hydrothermal fluids off Panarea Island are rich in CO2 (up to 97 vol.%), and H2S (up to 2 Vol.%) [2], and are slightly acidic (pH 5-6; Fig. 1a). Investigations of the intact polar membrane lipid (IPL) composition in sediments ranging from ca. 40- 90°C (Fig. 1a) showed a dominance of bacterial lipids at lower temperatures (Hot Lake I) mainly comprised of ornithine lipids and the phospholipids phosphoethanolamine, phospho-(N)-methylethanolamine, phosphocholine, phosphoglycerol and diphosphoglycerol (Fig 1b). Betaine lipids and glycolipids, which are likely derived from phototrophic organisms in the surface sediments decrease with increasing sediment depth. Notable is a shift to a dominance of archaeal lipids with depth and/or temperature at Hot Lake II and Blackpoint I. The observed archaeal IPLs are diglycosidic glycerol dibiphytanyl tetraethers (GDGT) with core lipids comprised of 0 to 2 pentacyclic rings and a series of H-shaped GDGTs. IPL investigations are accompanied by a series of molecular biological analyses such as fluorescence in situ hybridization (FISH) and comparative 16S rRNA gene analyses. FISH results are consistent with an increase of Archaea relative to Bacteria with increasing sediment depth. Epsilonproteobacteria, Bacteriodetes and Deltaproteobacteria are identified as major bacterial groups at lower temperatures while clones affiliated to the crenarchaeotal Desulfurococcaceae and Korarchaeota are found with increasing temperature and sediment depth. To investigate major pathways of carbon turnover under anaerobic conditions in the sediments we have conducted a 13 C and deuterium lipid-labelling study. The results will be evaluated by head group specific label uptake [2] in concert with gene-based analyses to enable more detailed chemotaxonomic assignments. Fig. 1. a) Depth profiles of temperature, pH, and IPL total concentration at sites Hot Lake and Blackpoint. b) Composition of IPLs at two depth intervals of the three investigated sites. References [1] Amend J.P. and Shock E.L. (2001) FEMS Microbiol. Rev. 25, 175-243. [2] Schubotz F., et al. (2011) Geochim. Cosmo-chim. Acta. doi:10.1016/j.gca.2011.05.018 563
P-438 Lipid biomarkers of archaeal and sulphate reducing bacterial aggregates in gas hydrate-bearing deep sea sediment Yong-Cheon Ahn 1 , Jang-Jun Bahk 2 , Jung-Hyun Lee 3 , Kyung-Hoon Shin 1 1 Hanyang University, Ansan, Republic of Korea, 2 Korea Institute of Geoscience and Mineral Resources, Daejeon, Republic of Korea, 3 Korea Ocean Research and Development Institute, Ansan, Republic of Korea, 4 Hanyang University, Ansan, Republic of Korea (corresponding author:shinkh@hanyang.ac.kr) Gas hydrate has an importance as new alternative energy in the future and it is necessary to understand microorganism activity related to the production and consumption of the gas hydrate and methane biogeochemical cycle. In the present study, origin of sedimentary organic matter related to the production of gas hydrate in the gas hydrate-bearing core sediment and non bearing core sediment were determined using carbon and nitrogen stable isotope ratio and C/N ratio. Bulk organic matter of all sediment cores nearly seems to be marine algal origin, considering carbon and nitrogen stable isotope ratio and C/N ratio. Also, lipid biomarkers concentrations of archaeal and bacterial aggregates in the gas hydrate-bearing sediment were measured in the gas hydrate-bearing sediment. Some biomarkers (PMI and crocetane) related to the AOM(Anaerobic Oxidation of Methane) and sulfate reducing bacteria(i-C15:0 and a-C15:0) were apparently detected at 100 ~ 150 cm depth in the gas hydrate-bearing core sediment(St.12-2), corresponding to metagenomic characterization of sulfate-methane transition zone (SMTZ). The current results provide useful information to understand distribution of microorganism aggregate related to the production and consumption of methane in the gas hydrate-bearing deep sea sediment from Ulleung-Basin, East Sea. 564
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25th Inter
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Dear Conference Delegates, Preface
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Monday 19 th September 2011 - Morni
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Monday 19 th September 2011 - After
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Tuesday 20 th September 2011 - Afte
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Wednesday 21 st September 2011 - Mo
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Wednesday 21 st September 2011 - Af
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13.40 - 15.05 Poster Session 4 (In
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Friday 23 rd September 2011 - Morni
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Poster Sessions (in Kongress-Saal)
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P-026 Comparison of comprehensive t
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P-052 Incorporation of Archaeal and
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P-081 Geochemical evidence for two
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P-108 Organic geochemistry and Meso
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P-133 Can we estimate catchment-sca
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P-157 Can laterally advected interm
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P-182 The influence of hydrogen on
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P-207 Biomarkers along a holocene s
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P-232 Some experimental results on
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P-261 Natural gas generation, migra
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P-288 Re/Os fractionation during ge
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P-314 Chemometric analysis of oil-o
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P-340 Atypical fluids in offshore s
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P-366 Organic geochemical character
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P-392 Environmental forensic study
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P-416 Developing analytical protoco
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P-442 Deep-sea benthic archaea recy
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P-464 Effects of within-catchment p
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Poster Session 4 - Thursday 22 nd S
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Monday Oral Presentations 58
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O-02 Melting history of West Antarc
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O-04 Insights about the marine nitr
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O-06 Eocene out-of-India dispersal
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O-08 An integrated lipid biomarker
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O-10 Sulfur species as facilitators
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O-12 Sulfur isotope systematic of i
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O-14 Exploring the diversity of arc
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O-16 Improved genetic characterizat
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O-18 Petroleum system analysis Sout
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O-19 The borolithochromes: boron-co
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O-21 Study of the stable isotopic c
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O-23 Novel applications of trace me
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O-25 The chemical structure of inso
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O-27 Coenzyme factor 430: abundance
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O-29 Influence of temperature on me
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O-31 The fate of collembola derived
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O-33 Empirical relationship between
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O-35 Biomarker evidence for the Lat
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O-37 The seco-oleananes: identifica
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O-38 Microbial communities associat
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O-40 The importance of geochemical
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O-42 Charge history and petroleum g
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O-44 Bacterial formation of (di)eth
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O-46 Development of a novel tool fo
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O-48 Evolution of petroleum composi
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O-50 Beyond Orgas- BP’s new predi
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O-52 Nitrogen isotopes of amino aci
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O-54 Biomarker and petrographic evi
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O-55 The organic geochemistry of ca
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O-57 Exploring mass extinction even
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O-59 Black shale formation by micro
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O-61 The significant impact of weat
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O-63 Simultaneous shifts in tempera
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O-65 Fluxes and isotope composition
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O-67 Biogeochemical impact of CO2 e
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Bacteria number ml-1 Bacteria numbe
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O-71 Aquathermolysis: pressure effe
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O-73 Designing tight-shale producti
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O-74 Tracing 13C-labeled inorganic
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O-76 Carbon fluxes in phylogenetica
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O-78 Fluid property prediction from
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O-80 Denitrifying bacteria as poten
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O-82 Tetraether lipid profiles in c
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O-84 Prediction of gas volume and d
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Monday Poster Presentations 148
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P-002 Structure and function of asp
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P-004 Preliminary study of acid deg
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P-006 Chemical and geochemical char
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P-008 High resolution measurement o
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P-010 Acidic fraction analyses of B
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P-012 Heteroatom-containing compoun
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P-014 Evaluation of hydropyrolysis
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P-016 Iron isotopic compositions of
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P-018 Evaluation of accelerated sol
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P-020 Improvement of HPLC-protocols
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P-022 Open-system hydrous pyrolysis
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P-024 The phenolic characterisation
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P-026 Comparison of comprehensive t
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P-028 Characterisation of lignin de
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P-030 Trace analysis of methylated
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P-033 An evaluation of petroleum so
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P-035 Contrasting macromolecular or
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P-037 Evolution of depositional env
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P-039 Organic carbon content and ch
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P-041 Organic geochemistry of entra
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P-043 Petrological and organic geoc
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P-045 Occurrence and geochemical ch
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P-047 Characterization of lignites
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P-049 Organic matter of Lower Permi
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P-051 Kerogen sulphur, hydrogen and
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P-053 Sulfur-bound compounds in fre
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P-055 Organic matter preservation i
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P-058 Characterization of aromatic
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P-060 Biomarkers parameters used to
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P-063 Origin of crude oil with high
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P-065 Molecular maturation of Bitum
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P-067 C21-C23 steroidal tricyclic t
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P-069 The age and palaeoenvironment
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P-071 Structural characterization o
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P-074 Discussion on appliance of 25
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P-076 Lanostanes as the new biomark
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P-079 Geochemistry of ―just gener
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P-081 Geochemical evidence for two
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P-083 Thermal maturity assessment o
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P-085 Flash pyrolysis-gas chromatog
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P-087 Petroleum geochemistry of the
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P-089 Addressing thermogenic and bi
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P-091 Investigation of oil stabilit
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P-093 Organic geochemistry, petrole
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P-095 Natural petroleum fractionati
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P-097 Geochemistry of low-boiling
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P-099 Oxygen-containing compounds i
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P-101 Formation of giant deep-burie
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P-103 Geochemical characteristics o
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P-105 Challenges on the origin of o
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P-107 Caldera of the Uzon volcano a
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P-109 A saga on organic geochemistr
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P-111 An integrated inorganic and o
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P-114 Hydrocarbon generation potent
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P-116 Marine transgressional event
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P-118 The cracking kinetics of two
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P-120 The generation potential of t
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P-122 Organic geochemical character
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P-124 Compositional features of org
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P-126 The value of generation hydro
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P-128 Investigation of fish pond ma
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P-130 Bituminous mixtures of Hakemi
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P-132 Combined � 13 C - �D anal
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P-134 Biomarkers preserved in cave
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P-136 Analysis of insoluble organic
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P-139 Role and nature of organic ma
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P-141 Biosurfactants - a green alte
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P-143 Phenolic compounds in water l
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P-145 Current level of the organic
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P-147 The d13C composition of indiv
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P-149 Targeted chemical and physica
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P-151 Cu(II) complexation with humi
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P-153 Differentiation of indoor and
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P-156 A detailed study of the intac
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P-158 Unusual distribution of long-
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P-160 Biomarker signatures of metha
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P-162 Lipid biomarkers and bulk bio
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P-164 Chemotaxonomic composition an
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P-166 The role of two submarine can
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P-168 Correlation of crenarchaea an
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P-170 Microbial activity and abunda
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P-172 Microbially mediated carbonat
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P-174 Distinct microbial inventorie
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P-176 Microbial consortium mediatin
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P-178 Diversity of microbial commun
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P-180 Inhibition of anaerobic oil d
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P-182 The influence of hydrogen on
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P-184 Have they lost their heads? D
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P-187 Paleohydrological changes on
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P-189 Paleoenvironmental variations
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P-191 Highly branched isoprenoid al
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P-193 A new global calibration for
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P-195 Molecular fossils and the lat
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P-197 Sediment trap and core top st
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P-199 Detection of environmental ch
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P-201 Carbon and hydrogen isotope b
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P-203 Biogeochemical processes in H
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P-205 Lipid biomarker analysis of f
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P-207 Biomarkers along a holocene s
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P-209 A comparison of methane emiss
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P-211 Paleocene-Eocene Thermal Maxi
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P-213 Biomarker proxies indicate si
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P-215 Distributions of long-chain d
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P-217 The Vinylguaiacol/Indole or V
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P-219 The age and palaeoenvironment
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P-221 Differences in distribution o
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P-225 The change of land plant deri
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P-227 Terrestrial organic matter in
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P-229 Geochemical peculiarities of
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P-231 Bacteriohopanepolyol content
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P-233 Branched GDGTs in the Yenisei
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P-235 Simulation of organic matter
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P-237 Nature of C29 sterols in the
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P-239 Differentiation of organic ma
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P-242 Changes of Rock-Eval HI, OI,
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P-244 Identification and distributi
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P-246 Carbon isotopes and lipid bio
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P-248 Comparison of soil organic ma
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P-250 Biomarker distribution along
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Wednesday Poster Presentations 388
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P-255 Gas source classification in
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P-257 The components and carbon iso
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P-259 Stable carbon isotopes of coa
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P-261 Natural gas generation, migra
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P-264 Natural gas geochemistry of t
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P-266 Geochemical and isotopic char
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P-269 Distribution of alkylbenzenes
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P-271 Terrestrial-derived biomarker
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P-273 Preservation of β-carotane i
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P-275 Aromatic hydrocarbons in oils
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P-277 Statistical analysis of diamo
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P-279 Characterization of biomarker
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P-281 The significance of novel A-n
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P-283 Correlation between compositi
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P-285 Understanding Fluid Inclusion
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P-287 The hydrocarbon occurrence an
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P-289 Correlation of crude oils res
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P-291 Geochemical parameters for un
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P-293 Hydrocarbon biomarkers in the
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P-295 Using diamondoids to unravel
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P-297 Significance of aromatic biom
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P-299 Drilling conditions making we
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P-301 Biomarker distributions and
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P-303 Evaluation of petroleum syste
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P-305 Geochemical indices of hydroc
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P-307 Basin modelling of the Hammer
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P-309 Comparative characteristics o
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P-311 High water pressure induced c
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P-313 Calibration of absolute matur
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P-315 Organic Geochemistry of Lower
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P-317 Laboratory simulation of vert
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P-319 The study of C1-C3 gas genera
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P-321 Hydrocarbon potential of Maik
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P-323 Paleoenvironment significance
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P-325 Origin of abnormal sonic resp
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P-327 Organic geochemistry and orga
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P-329 Characterising the deposition
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P-331 Organic-geochemical character
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P-335 Geochemistry of aqua-bitumoid
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P-337 Application of electrospray i
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P-339 Geochemical characterization
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P-341 Simulation studies on the ads
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P-343 Effective diffusivities of CO
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P-345 Oil Fingerprinting associated
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P-347 Strategies for the assessment
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P-349 Fluid pressure evolution and
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P-351 The releasing of covalently-b
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P-354 Sulfur isotope fractionation
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P-356 Controls on the kinetics of t
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P-358 Sulfur compounds in liquid pr
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P-360 High pressure pyrolysis of hy
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P-362 The reaction of elemental sul
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P-365 Geochemical evaluation of the
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P-367 Geochemical controls on shale
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P-369 Evolution of pores in organic
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P-371 Preliminary investigations in
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P-373 Geochemistry of coalbed metha
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P-375 Integration of basin modeling
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P-377 Oil shales occurring in Mongo
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Thursday Poster Presentations 508
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P-381 Permissible concentration of
Page 513 and 514: P-383 Accumulation and degradation
Page 515 and 516: P-385 Source determination and dept
Page 517 and 518: P-387 The use of phospholipid fatty
Page 519 and 520: P-389 Biogeochemical process studie
Page 521 and 522: P-391 Environmental forensics-recen
Page 523 and 524: P-393 Geochemical characterization
Page 525 and 526: P-395 Source characterization using
Page 527 and 528: P-397 Impact of different operating
Page 529 and 530: P-399 Resolving sources and preserv
Page 531 and 532: P-402 New insights into soil organi
Page 533 and 534: P-404 Amino sugars as biomarkers fo
Page 535 and 536: P-406 Biogeochemistry of lake Soppe
Page 537 and 538: P-408 Sea surface salinity reconstr
Page 539 and 540: P-410 Carbon cycling in lacustrine
Page 541 and 542: P-412 Radiocarbon distributions in
Page 543 and 544: P-414 European lake sediment calibr
Page 545 and 546: P-416 Developing analytical protoco
Page 547 and 548: P-418 Extreme intra- and intermolec
Page 549 and 550: P-420 � 2 H differences among lip
Page 551 and 552: P-424 Intact polar lipid and associ
Page 553 and 554: P-426 Bacterial versus archaeal act
Page 555 and 556: P-428 Study of microbial activity a
Page 557 and 558: P-430 New bacteriochlorophyll degra
Page 559 and 560: P-432 Thermally stable anammox biom
Page 561 and 562: P-434 Impact of a high CO2 partial
Page 563: P-436 Methane oxidation in the wate
Page 567 and 568: P-440 Estimation of endospore numbe
Page 569 and 570: P-442 Deep-sea benthic archaea recy
Page 571 and 572: P-444 Isolating and cultivating env
Page 573 and 574: P-446 Distribution of ammonia-oxidi
Page 575 and 576: P-448 Genetic and metabolic charact
Page 577 and 578: P-450 Proxies based on archaeal and
Page 579 and 580: P-453 Experimental palaeochemotaxon
Page 581 and 582: P-455 Long term cooling and punctua
Page 583 and 584: P-457 Molecular and isotopic eviden
Page 585 and 586: P-459 Long-term variations of palae
Page 587 and 588: P-461 Miocene to Pliocene environme
Page 589 and 590: P-463 Holocene paleoclimatic variat
Page 591 and 592: P-465 Hydrological and biogeochemic
Page 593 and 594: P-467 Molecular hydrogen isotope sy
Page 595 and 596: P-469 Impact of anaerobic methane o
Page 597 and 598: P-471 Integrating biomarker and mic
Page 599 and 600: P-473 Application of TEX86-paleothe
Page 601 and 602: P-475 Stable isotopes (C, S) and hy
Page 603 and 604: P-478 The first findings of 12- and
Page 605 and 606: P-480 The 3 P’s* and the Albian o
Page 607 and 608: P-482 Meter-scale oxygen gradients
Page 609 and 610: P-484 Coupling of Miocene-Pliocene
Page 611 and 612: P-486 New molecular marker and spec
Page 613 and 614: P-488 Paleoenvironmental changes fr
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P-491 Methoxy-serratenes as discrim
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P-493 Vegetation and soil organic m
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P-497 Decomposition of wheat straw
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P-499 The relationship between peat
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P-501 Land use and climatic effects
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P-503 Geochemical characterization
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P-505 Organic carbon composition an
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P-507 Dynamics of soil organic matt
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P-509 Exploiting isotopic, organic,
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P-511 The effect of soil moisture o
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P-513 Anaerobic oxidation of plant-
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P-515 Variability of terrestrially-
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Author Index 638
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Anselmetti Flavio S. O-63 Ansong Ge
Page 643 and 644:
Brinkhuis Henk P-200, P-468 Britton
Page 645 and 646:
de Souza Carvalho Ismar P-017 Dedys
Page 647 and 648:
Francu Juraj P-037, P-266 Frank Ric
Page 649 and 650:
Hart Malcolm O-09 Hartkopf-Fröder
Page 651 and 652:
Jin Zhijun P-094 Jingjing Li P-179
Page 653 and 654:
Lausmaa Jukka O-58 Lavrieux Marlèn
Page 655 and 656:
Marsh Steven P-509 Marshall Chris O
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Nemchenko- Rovenskaya Alla P-112 Ne
Page 659 and 660:
Radovic Miljana P-152 Ramanathan AL
Page 661 and 662:
Schröder Jan P-020, P-029 Schubert
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Strelnikova Eugenia P-099 Stuart-Wi
Page 665 and 666:
Wakeham Stuart G. O-69 Walters Clif
Page 667 and 668:
Zhang Jing P-515 Zhang Jingru P-398
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25th International Meeting on Organic Geochemistry IMOG 2011

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