A
Asuncion Martinez
Researcher at Massachusetts Institute of Technology
Publications - 24
Citations - 4182
Asuncion Martinez is an academic researcher from Massachusetts Institute of Technology. The author has contributed to research in topics: Proteorhodopsin & Marine bacteriophage. The author has an hindex of 16, co-authored 23 publications receiving 3903 citations. Previous affiliations of Asuncion Martinez include Harvard University & Aventis Pharma.
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Journal ArticleDOI
Community Genomics Among Stratified Microbial Assemblages in the Ocean's Interior
Edward F. DeLong,Christina M. Preston,Tracy J. Mincer,Virginia I. Rich,Steven J. Hallam,Niels-Ulrik Frigaard,Asuncion Martinez,Matthew B. Sullivan,Robert Edwards,Beltran Rodriguez Brito,Sallie W. Chisholm,David M. Karl +11 more
TL;DR: Genomic analyses of planktonic microbial communities in the North Pacific Subtropical Gyre, from the ocean's surface to near–sea floor depths, suggested depth-variable community trends in carbon and energy metabolism, attachment and motility, gene mobility, and host-viral interactions.
Journal ArticleDOI
Aerobic production of methane in the sea
David M. Karl,Lucas J. Beversdorf,Karin M. Björkman,Matthew J. Church,Asuncion Martinez,Edward F. DeLong +5 more
TL;DR: In this paper, the authors show that oceanic methane is produced aerobically as a byproduct of methylphosphonate decomposition in phosphate-stressed waters, and they suggest that aerobic marine methane production will be sensitive to the changes in water-column stratification and nutrient limitation that are likely to result from greenhouse-gas-induced ocean warming.
Journal ArticleDOI
Protection of DNA during oxidative stress by the nonspecific DNA-binding protein Dps.
Asuncion Martinez,Roberto Kolter +1 more
TL;DR: In a purified in vitro system, Dps reduces the number of DNA single-strand breaks and Fpg-sensitive sites introduced by hydrogen peroxide treatment, indicating that the protection observed in vivo is a direct effect of DNA binding by Dps.
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Recombinant Environmental Libraries Provide Access to Microbial Diversity for Drug Discovery from Natural Products
Sophie Courtois,Carmela Cappellano,Maria M. Ball,François Francou,Philippe Normand,Gerard Helynck,Asuncion Martinez,Steven J. Kolvek,Joern Hopke,Marcia S. Osburne,Paul R. August,Renaud Nalin,Michel Guerineau,Pascale Jeannin,Pascal Simonet,Jean-Luc Pernodet +15 more
TL;DR: The data reinforce the idea that exploiting previously unknown or uncultivated microorganisms for the discovery of novel natural products has potential value and suggest a strategy for developing this technology into a realistic and effective drug discovery tool.
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Proteorhodopsin lateral gene transfer between marine planktonic Bacteria and Archaea
TL;DR: The cosmopolitan phylogenetic distribution of proteorhodopsins reflects their significant light-dependent fitness contributions, which drive the photoprotein's lateral acquisition and retention, but constrain its dispersal to the photic zone.