Results 41 to 50 of about 3,900 (194)

Ensambles de arqueas y bacterias en la Zona de Mínimo Oxígeno del ecosistema de surgencia de Chile central determinados mediante biomarcadores orgánicos [PDF]

, 2015
Indexación: Web of Science; Scielo.Organic biomarkers were used to investigate the influence of seasonal changes in oxygenation and water chemistry on the distribution of archaea and bacteria in the water column and surface sediments of the continental ...
LEVIPAN, HÉCTOR A., PANTOJA, SILVIO, QUIÑONES, RENATO A., SEPÚLVEDA, JULIO, SRAIN, BENJAMÍN, SUMMONS, ROGER E.   +5 more
core   +5 more sources

The Sources of Organic Carbon in the Deepest Ocean: Implication From Bacterial Membrane Lipids in the Mariana Trench Zone

Frontiers in Earth Science, 2021
Hadal trenches have higher microbial carbon turnover rates as compared to adjacent abyssal plains. However, the source of organic carbon in the trench remains enigmatic. In this study, we show that a fraction of organic carbon is possibly derived in situ
Jiwei Li, Jiwei Li, Zhiyan Chen, Zhiyan Chen, Zhiyan Chen, Xinxin Li, Xinxin Li, Shun Chen, Hengchao Xu, Kaiwen Ta, Shamik Dasgupta, Shijie Bai, Mengran Du, Shuangquan Liu, Xiaotong Peng   +14 more
doaj   +1 more source

Short-term variability in the sedimentary BIT index of Lake Challa, East Africa over the past 2200 years : validating the precipitation proxy [PDF]

, 2015
. The branched vs. isoprenoid index of tetraethers (BIT index) in Lake Challa sediments has been applied as a monsoon precipitation proxy on the assumption that the primary source of branched tetraether lipids (brGDGTs) was soil washed in from the lake's
Buckles, LK, Cocquyt, Christine, Sinninghe Damsté, JS, Verschuren, Dirk, Weijers, JWH   +4 more
core   +1 more source

Tetraether archaeal lipids promote long‐term survival in extreme conditions [PDF]

Molecular Microbiology
Geraldy Lie Stefanus Liman, Andy A Garcia, Kristin A Fluke   +2 more
exaly   +2 more sources

Hydrologic controls on seasonal and inter-annual variability of Congo River particulate organic matter source and reservoir age [PDF]

, 2017
We present dissolved organic carbon (DOC) concentrations, particulate organic matter (POM) composition (δ13C, δ15N, ∆14C, N/C), and particulate glycerol dialkyl glycerol tetraether (GDGT) distributions from a 34-month time-series near the mouth of the ...
Dinga, Bienvenu Jean, Eglinton, Timothy I., Galy, Valier V., Hemingway, Jordon D., McIntyre, Cameron, Schefuß, Enno, Spencer, Robert G.M.   +6 more
core   +1 more source

The Effects of Temperature and Growth Phase on the Lipidomes of Sulfolobus islandicus and Sulfolobus tokodaii

Life, 2015
The functionality of the plasma membrane is essential for all organisms. Adaption to high growth temperatures imposes challenges and Bacteria, Eukarya, and Archaea have developed several mechanisms to cope with these.
Sara Munk Jensen, Vinnie Lund Neesgaard, Sandra Landbo Nedergaard Skjoldbjerg, Martin Brandl, Christer S. Ejsing, Alexander H. Treusch   +5 more
doaj   +1 more source

Chemical markers for rumen methanogens and methanogenesis [PDF]

, 2013
Peer reviewedPublisher ...
Bessa, Bhagwat, Brulc, C.A. McCartney, Casto Montoya, Chen, Chilliard, Dehareng, Dehority, Dewhurst, Dewhurst, Diedrich, Dijkstra, Ding, Fievez, Firkins, Frey, Fritze, Gill, Gill, Gu, Guo, Hegarty, Hildenbrand, Hook, Hopmans, Huguet, I.D. Bull, Janssen, Jenkins, Kim, Koga, Koga, Lee, Leng, Liu, Mao, Mathai, McCartney, McGeough, Mohammed, Morgavi, Mosoni, Odongo, Pancost, Pei, Pinares-Patiño, Polidori, R.J. Dewhurst, Schouten, Schouten, Sharp, Shimada, Shin, Shingfield, Stouthamer, Thauer, Tymensen, Valentine, Vlaeminck, Vlaeminck, Weijers, Zhou, Zhou   +63 more
core   +1 more source

Membrane homeoviscous adaptation in the piezo-hyperthermophilic archaeon Thermococcus barophilus

Frontiers in Microbiology, 2015
The archaeon Thermococcus barophilus, one of the most extreme members of hyperthermophilic piezophiles known thus far, is able to grow at temperatures up to 103°C and pressures up to 80MPa. We analyzed the membrane lipids of T. barophilus by HPLC-MS as a
Anaïs eCario, Vincent eGrossi, Philippe eSchaeffer, Philippe M Oger   +3 more
doaj   +1 more source

A laboratory experiment on the behaviour of soil-derived core and intact polar GDGTs in aquatic environments [PDF]

Biogeosciences, 2015
We have performed incubation experiments in order to examine the behaviour of soil-derived branched glycerol dialkyl glycerol tetraether (brGDGT) membrane lipids upon entering an aquatic environment and to evaluate the processes that potentially take ...
F. Peterse, C. M. Moy, T. I. Eglinton
doaj   +1 more source

Identification of unusual butanetriol dialkyl glycerol tetraether and pentanetriol dialkyl glycerol tetraether lipids in marine sediments [PDF]

Rapid Communications in Mass Spectrometry, 2013
RATIONALE Glycerol serves as the principal backbone moiety bound to various acyl/alkyl chains for membrane lipids of Eukarya , Bacteria , and Archaea .
Chun Zhu, Travis B. Meador, Wolf Dummann, Kai-Uwe Hinrichs   +3 more
openaire   +2 more sources