L L Jahnke

Summary

Affiliation: NASA Ames Research Center
Country: USA

Publications

  1. ncbi request reprint Carbon isotopic fractionation in lipids from methanotrophic bacteria II: the effects of physiology and environmental parameters on the biosynthesis and isotopic signatures of biomarkers
    L L Jahnke
    Exobiology Branch, NASA Ames Research Center, Moffett Field, California 94035, USA
    Geochim Cosmochim Acta 63:79-93. 1999
  2. pmc Signature lipids and stable carbon isotope analyses of Octopus Spring hyperthermophilic communities compared with those of Aquificales representatives
    L L Jahnke
    Exobiology Branch, NASA Ames Research Center, Moffett Field, California 94035, USA
    Appl Environ Microbiol 67:5179-89. 2001
  3. doi request reprint Lipid biomarker and phylogenetic analyses to reveal archaeal biodiversity and distribution in hypersaline microbial mat and underlying sediment
    L L Jahnke
    Space Science Division, NASA Ames Research Center, Moffett Field, CA 94035, USA
    Geobiology 6:394-410. 2008
  4. doi request reprint Molecular and lipid biomarker analysis of a gypsum-hosted endoevaporitic microbial community
    L L Jahnke
    Exobiology Branch, NASA, Ames Research Center, Moffett Field, CA, USA
    Geobiology 12:62-82. 2014
  5. doi request reprint Characterization and spatial distribution of methanogens and methanogenic biosignatures in hypersaline microbial mats of Baja California
    V J Orphan
    Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 91125, USA
    Geobiology 6:376-93. 2008
  6. pmc Stable carbon isotope ratios of lipid biomarkers of sulfate-reducing bacteria
    K L Londry
    Department of Microbiology, University of Manitoba, Winnipeg, Manitoba, Canada
    Appl Environ Microbiol 70:745-51. 2004

Collaborators

Detail Information

Publications6

  1. ncbi request reprint Carbon isotopic fractionation in lipids from methanotrophic bacteria II: the effects of physiology and environmental parameters on the biosynthesis and isotopic signatures of biomarkers
    L L Jahnke
    Exobiology Branch, NASA Ames Research Center, Moffett Field, California 94035, USA
    Geochim Cosmochim Acta 63:79-93. 1999
    ..In other words, hopanoids from some methanotrophs such as M. trichosporium would be indistinguishable from those of cyanobacteria or heterotrophic bacteria on the basis of either chemical structure or carbon isotopic signature...
  2. pmc Signature lipids and stable carbon isotope analyses of Octopus Spring hyperthermophilic communities compared with those of Aquificales representatives
    L L Jahnke
    Exobiology Branch, NASA Ames Research Center, Moffett Field, California 94035, USA
    Appl Environ Microbiol 67:5179-89. 2001
    ..Accordingly, Thermocrinis in the PSC is likely to have utilized formate, presumably generated in the spring source region...
  3. doi request reprint Lipid biomarker and phylogenetic analyses to reveal archaeal biodiversity and distribution in hypersaline microbial mat and underlying sediment
    L L Jahnke
    Space Science Division, NASA Ames Research Center, Moffett Field, CA 94035, USA
    Geobiology 6:394-410. 2008
    ..Halobacteriaceae family made up 80% of the clone library of the surface 2 mm, and consisted primarily of sequences affiliated with the haloalkaliphilic Natronomonas pharaonis...
  4. doi request reprint Molecular and lipid biomarker analysis of a gypsum-hosted endoevaporitic microbial community
    L L Jahnke
    Exobiology Branch, NASA, Ames Research Center, Moffett Field, CA, USA
    Geobiology 12:62-82. 2014
    ..Together microbial culture and environmental analyses support novel sources for lipid biomarkers in gypsum crust mats. ..
  5. doi request reprint Characterization and spatial distribution of methanogens and methanogenic biosignatures in hypersaline microbial mats of Baja California
    V J Orphan
    Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 91125, USA
    Geobiology 6:376-93. 2008
    ....
  6. pmc Stable carbon isotope ratios of lipid biomarkers of sulfate-reducing bacteria
    K L Londry
    Department of Microbiology, University of Manitoba, Winnipeg, Manitoba, Canada
    Appl Environ Microbiol 70:745-51. 2004
    ..These experiments indicate that FA delta13C values can be useful for interpreting carbon utilization by SRB in natural environments...