Microbial growth under humic-free conditions in a supraglacial stream system on the Cotton Glacier, Antarctica

• Published in: Environmental Research Letters
• Main Authors: Foreman, Christine M., Cory, Rose M., Morris, Cindy E., SanClements, Michael D, Smith, Heidi J., Lisle, John T., Miller, Penney L., Chin, Yu-Ping, McKnight, Diane M.
• Other Authors: Montana State University (MSU), Earth & Environmental Sciences, Unité de Pathologie Végétale (PV), Institut National de la Recherche Agronomique (INRA), University of Colorado Boulder, St Petersburg Coastal Marine Science Center, Partenaires INRAE, Rose-Hulman Institute of Technology, Ohio State University Columbus (OSU), NSF: OPP-0338260, OPP-0338299, OPP-0338121, OPP-0338342; Montana Space Grant Consortium
• Format: Article in Journal/Newspaper
• Language: English
• Published: HAL CCSD 2013
• Subjects: dissolved organic matter (DOM); extracellular emission matrices (EEMs); ice nucleation activity; fluorescence; [SDE.MCG]Environmental Sciences/Global Changes; [SDE.BE]Environmental Sciences/Biodiversity and Ecology; Austral; Cotton Glacier; Antarc*; Antarctica
• Online Access: https://hal.inrae.fr/hal-02645819; https://hal.inrae.fr/hal-02645819/document; https://hal.inrae.fr/hal-02645819/file/Christine%20M%20Foreman%20et%20al%202013_1.pdf; https://doi.org/10.1088/1748-9326/8/3/035022

International audience During the austral summers of 2004 and 2009, we sampled a supraglacial stream on the Cotton Glacier, Antarctica. The stream dissolved organic matter (DOM) was low (44-48 mu M C) and lacked detectable humic fluorescence signatures. Analysis of the excitation emissions matrices...