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List of works by Alex L. Sessions

2H/1H ratio of hopanes, tricyclic and tetracyclic terpanes in oils and source rocks from the Potiguar Basin, Brazil

article

2H/1H variation in microbial lipids is controlled by NADPH metabolism

scientific article published on 31 May 2019

A high-resolution gas-source isotope ratio mass spectrometer

article

A stratified redox model for the Ediacaran ocean

scientific article

Analysis of the site-specific carbon isotope composition of propane by gas source isotope ratio mass spectrometer

scientific article published in September 2016

Biomarker evidence for photosynthesis during neoproterozoic glaciation

scientific article published on 29 September 2005

Biosynthesis of 2-methylbacteriohopanepolyols by an anoxygenic phototroph ⬇️

scientific article (publication date: 18 September 2007)

Calculation of hydrogen isotopic fractionations in biogeochemical systems

article

Carbon isotope evidence for the substrates and mechanisms of prebiotic synthesis in the early solar system

scholarly article

Carbon isotopes and lipid biomarkers from organic-rich facies of the Shuram Formation, Sultanate of Oman

scientific article

Cenozoic record of δ34S in foraminiferal calcite implies an early Eocene shift to deep-ocean sulfide burial

Clumped Isotopes Link Older Carbon Substrates With Slower Rates of Methanogenesis in Northern Lakes

scientific article published in 2020

Comparison of three methods for the methylation of aliphatic and aromatic compounds.

scientific article published in August 2017

Compound-specific D/H ratios of lipid biomarkers from sediments as a proxy for environmental and climatic conditions

scholarly article

Compound-specific delta34S analysis of volatile organics by coupled GC/multicollector-ICPMS.

scientific article published in November 2009

Compound-specific sulfur isotope analysis of cysteine and methionine via preparatory liquid chromatography and elemental analyzer isotope-ratio mass spectrometry

scientific article published on 17 November 2020

Controls on the D/H ratios of plant leaf waxes in an arid ecosystem

article

Crassulacean acid metabolism influences D/H ratio of leaf wax in succulent plants

article

D/H ratios in terrestrially sourced petroleum systems

D/H ratios of fatty acids from marine particulate organic matter in the California Borderland Basins

article

D/H variation in terrestrial lipids from Santa Barbara Basin over the past 1400years: A preliminary assessment of paleoclimatic relevance

Deposition of sulfate aerosols with positive Δ33S in the Neoarchean

Diverse capacity for 2-methylhopanoid production correlates with a specific ecological niche

scientific article (publication date: March 2014)

Duelling narratives of chironomids and pollen explain climate enigmas during The Last Glacial-Interglacial transition in North Island New Zealand

scientific article published in 2021

Environmental Drivers Shaping Physiological Flexibility of Plants in Saline Habitats from Shark Bay, Western Australia

Equilibrium 2H/1H fractionation in organic molecules: III. Cyclic ketones and hydrocarbons

article

Equilibrium 2H/1H fractionations in organic molecules. II: Linear alkanes, alkenes, ketones, carboxylic acids, esters, alcohols and ethers

article

Equilibrium 2H/1H fractionations in organic molecules: I. Experimental calibration of ab initio calculations

article

Experimental determination of carbonate-associated sulfate δ34S in planktonic foraminifera shells

scientific article

Factors controlling the deuterium contents of sedimentary hydrocarbons

Fractionation of Hydrogen Isotopes by Sulfate- and Nitrate-Reducing Bacteria

scientific article published on 02 August 2016

Fractionation of hydrogen isotopes in lipid biosynthesis

article

Gas formation. Formation temperatures of thermogenic and biogenic methane

scientific article

Geochemistry and geobiology of a present-day serpentinization site in California: The Cedars

scientific article published in May 2013

HYDROGEN ISOTOPIC (D/H) COMPOSITION OF ORGANIC MATTER DURING DIAGENESIS AND THERMAL MATURATION

article

Hopanoids play a role in membrane integrity and pH homeostasis in Rhodopseudomonas palustris TIE-1

scientific article (publication date: October 2009)

Hydroclimate of the western Indo-Pacific Warm Pool during the past 24,000 years

scientific article

Hydrogen isotope fractionation in lipids of the methane-oxidizing bacterium Methylococcus capsulatus

Hydrogen isotopic fractionation in lipid biosynthesis by H2-consuming Desulfobacterium autotrophicum

scholarly article

Hydrogen-isotopic variability in fatty acids from Yellowstone National Park hot spring microbial communities

article

Hydrogen-isotopic variability in lipids from Santa Barbara Basin sediments

scholarly article

Hydrologic Change in New Zealand During the Last Deglaciation Linked to Reorganization of the Southern Hemisphere Westerly Winds

scientific article

Identification and quantification of polyfunctionalized hopanoids by high temperature gas chromatography-mass spectrometry ⬇️

scientific article (publication date: March 2013)

Identification of Novel Methane-, Ethane-, and Propane-Oxidizing Bacteria at Marine Hydrocarbon Seeps by Stable Isotope Probing ⬇️

scientific article published on July 30, 2010

Identification of a methylase required for 2-methylhopanoid production and implications for the interpretation of sedimentary hopanes ⬇️

scientific article (publication date: 11 May 2010)

Isotope-ratio detection for gas chromatography

scientific article published on August 2006

Isotopic exchange of carbon-bound hydrogen over geologic timescales 1 1Associate editor: J. Horita

article

John M. Hayes 1940–2017. Father of isotopes in modern and ancient biogeochemical processes, biosynthetic carbon and hydrogen isotope fractionation and compound specific isotope analytical techniques

scientific article published in 2017

Large D/H variations in bacterial lipids reflect central metabolic pathways.

scholarly article

Lipid remodeling in Rhodopseudomonas palustris TIE-1 upon loss of hopanoids and hopanoid methylation

scientific article published on 29 April 2015

MC-ICP-MS measurement of δ34S and ∆33S in small amounts of dissolved sulfate

scholarly article

MONO LAKE SEDIMENTS: A RECORD OF RECENT ENVIRONMENTAL CHANGE

abstract published in 2017

Measuring thein situcarbon isotopic composition of distinct marine plankton populations sorted by flow cytometry

article

Memory effects in compound-specific D/H analysis by gas chromatography/pyrolysis/isotope-ratio mass spectrometry

scientific article published in December 2008

Metabolic associations with archaea drive shifts in hydrogen isotope fractionation in sulfate-reducing bacterial lipids in cocultures and methane seeps.

scientific article published on 28 April 2015

Methane clumped isotopes: Progress and potential for a new isotopic tracer

article

Methods and limitations of stable isotope measurements via direct elution of chromatographic peaks using gas chromotography-Orbitrap mass spectrometry

scholarly article

Microbial succession and dynamics in meromictic Mono Lake, California

scientific article published in July 2021

Minimal Influence of [NiFe] Hydrogenase on Hydrogen Isotope Fractionation in H2-Oxidizing Cupriavidus necator

scientific article published on 4 October 2017

Molecular Paleohydrology: Interpreting the Hydrogen-Isotopic Composition of Lipid Biomarkers from Photosynthesizing Organisms

scientific article published on 30 May 2012

Moving-wire device for carbon isotopic analyses of nanogram quantities of nonvolatile organic carbon

scientific article

Neoarchean carbonate-associated sulfate records positive Δ³³S anomalies

scientific article

Novel sulfur isotope analyses constrain sulfurized porewater fluxes as a minor component of marine dissolved organic matter

scientific article published in 2022

Orbital- and millennial-scale changes in the hydrologic cycle and vegetation in the western African Sahel: insights from individual plant wax δD and δ13C

scholarly article

Organic Reference Materials for Hydrogen, Carbon, and Nitrogen Stable Isotope-Ratio Measurements: Caffeines, n-Alkanes, Fatty Acid Methyl Esters, Glycines, L-Valines, Polyethylenes, and Oils

scientific article

Paleoecology and paleoceanography of the Athel silicilyte, Ediacaran-Cambrian boundary, Sultanate of Oman

scientific article published on 7 April 2017

Phylogenetically specific separation of rRNA from prokaryotes for isotopic analysis

Planning considerations related to the organic contamination of Martian samples and implications for the Mars 2020 Rover.

scientific article published on December 2014

Plant-wax D/H ratios in the southern European Alps record multiple aspects of climate variability

Position-specific 13C distributions within propane from experiments and natural gas samples

scholarly article

Position-specific carbon isotopes of Murchison amino acids elucidate extraterrestrial abiotic organic synthesis networks

scholarly article

Position-specific distribution of hydrogen isotopes in natural propane: Effects of thermal cracking, equilibration and biodegradation

scientific article published in December 2020

Position-specific hydrogen isotope equilibrium in propane

scientific article published in October 2018

Position‐specific carbon isotope analysis of serine by gas chromatography/Orbitrap mass spectrometry, and an application to plant metabolism

scholarly article

Precise determination of equilibrium sulfur isotope effects during volatilization and deprotonation of dissolved H2S

Prediction of equilibrium distributions of isotopologues for methane, ethane and propane using density functional theory

scholarly article

Probing the subcellular localization of hopanoid lipids in bacteria using NanoSIMS

scientific article

Quantification and isotopic analysis of intracellular sulfur metabolites in the dissimilatory sulfate reduction pathway

scholarly article

Quantifying microbial utilization of petroleum hydrocarbons in salt marsh sediments by using the 13C content of bacterial rRNA

scientific article (publication date: February 2008)

Raman spectroscopy and biomarker analysis reveal multiple carbon inputs to a Precambrian glacial sediment

scientific article published in November 2009

Rapid analysis of 13 C in plant-wax n -alkanes for reconstruction of terrestrial vegetation signals from aquatic sediments

Rapid organic matter sulfurization in sinking particles from the Cariaco Basin water column

scholarly article

Rapid quantification and isotopic analysis of dissolved sulfur species.

scientific article published in March 2017

Refining the Application of Microbial Lipids as Tracers of Staphylococcus aureus Growth Rates in Cystic Fibrosis Sputum

scientific article published on 26 November 2018

Role of APS reductase in biogeochemical sulfur isotope fractionation

scientific article published on 09 January 2019

Room-level ventilation in schools and universities

scientific article published on 26 January 2022

Route to Renewable PET: Reaction Pathways and Energetics of Diels–Alder and Dehydrative Aromatization Reactions Between Ethylene and Biomass-Derived Furans Catalyzed by Lewis Acid Molecular Sieves

scientific article published on 3 September 2015

Santa Barbara Basin Flood Layers: Impact on Sediment Diagenesis

Seasonal changes in D/H fractionation accompanying lipid biosynthesis in Spartina alterniflora

Sedimentary pyrite δ 34 S differs from porewater sulfide in Santa Barbara Basin: Proposed role of organic sulfur

scholarly article

Simplified batch equilibration for D/H determination of non-exchangeable hydrogen in solid organic material

scientific article published in April 2009

Stable Isotope Analysis of Intact Oxyanions Using Electrospray Quadrupole-Orbitrap Mass Spectrometry

scientific article published on 03 February 2020

Study of thermochemical sulfate reduction mechanism using compound specific sulfur isotope analysis

scholarly article

Sulfate was a trace constituent of Archean seawater

scientific article

Sulfur isotopes of organic matter preserved in 3.45-billion-year-old stromatolites reveal microbial metabolism

scientific article (publication date: 18 September 2012)

Sulfur isotopic composition of individual organic compounds from Cariaco Basin sediments

article

The RND-family transporter, HpnN, is required for hopanoid localization to the outer membrane of Rhodopseudomonas palustris TIE-1

scientific article (publication date: 8 November 2011)

The continuing puzzle of the great oxidation event.

scientific article

The stable hydrogen isotopic composition of sedimentary plant waxes as quantitative proxy for rainfall in the West African Sahel

The sulfur-isotopic compositions of benzothiophenes and dibenzothiophenes as a proxy for thermochemical sulfate reduction

article

Towards measuring growth rates of pathogens during infections by D2 O-labeling lipidomics

scientific article published on 01 December 2018

Towards measuring growth rates of pathogens during infections by D2O-labeling lipidomics

scientific article published on 25 May 2018

Trace incorporation of heavy water reveals slow and heterogeneous pathogen growth rates in cystic fibrosis sputum

scientific article

Tracing iron-fueled microbial carbon production within the hydrothermal plume at the Loihi seamount

scientific article published in October 2011

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