کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1261233 1496667 2015 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Dissolved organic matter produced by Thalassiosira pseudonana
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Dissolved organic matter produced by Thalassiosira pseudonana
چکیده انگلیسی


• We use metabolomics to investigate the impact of phytoplankton on marine environment.
• Intracellular metabolites were more variable than the extracellular metabolites.
• We identified novel compounds not previously associated with Thalassiosira pseudonana.

Phytoplankton are significant producers of dissolved organic matter (DOM) in marine ecosystems but the identity and dynamics of this DOM remain poorly constrained. Knowledge on the identity and dynamics of DOM is crucial for understanding the molecular-level reactions at the base of the global carbon cycle. Here we apply emerging analytical and computational tools from metabolomics to investigate the composition of DOM produced by the centric diatom Thalassiosira pseudonana. We assessed both intracellular metabolites within T. pseudonana (the endo-metabolome) and extracellular metabolites released by T. pseudonana (the exo-metabolome). The intracellular metabolites had a more variable composition than the extracellular metabolites. We putatively identified novel compounds not previously associated with T. pseudonana as well as compounds that have previously been identified within T. pseudonana's metabolic capacity (e.g. dimethylsulfoniopropionate and degradation products of chitin). The resulting information will provide the basis for future experiments to assess the impact of T. pseudonana on the composition of dissolved organic matter in marine environments.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Marine Chemistry - Volume 168, 20 January 2015, Pages 114–123
نویسندگان
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