The Trichodesmium microbiome can modulate host N 2 fixation
نویسندگان
چکیده
منابع مشابه
Immunochemical localization of nitrogenase in marine trichodesmium aggregates: relationship to n(2) fixation potential.
Colonial aggregation among nonheterocystous filaments of the planktonic marine cyanobacterium Trichodesmium is known to enhance N(2) fixation, mediated by the O(2)-sensitive enzyme complex nitrogenase. Expression of nitrogenase appears linked to the formation of O(2)-depleted microzones within aggregated bacterium-associated colonies. While this implies a mechanism by which nonheterocystous N(2...
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Filamentous diazotrophic Cyanobacteria of the genus Trichodesmium, often found in colonial form, provide an important source of new nitrogen to tropical and subtropical marine ecosystems. Colonies are composed of several clades of Trichodesmium in association with a diverse community of bacterial and eukaryotic epibionts. We used high-throughput 16S rRNA and nifH gene sequencing, carbon (C) and...
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80W 60W 40W 20W 0 Modeling nutrient dynamics and carbon cycling in the ocean requires interdisciplinary research, combining geochemistry, biology, ecology and physics. All of these disciplines are represented in the U.S. JGOFS Synthesis and Modeling Project (SMP). However it is probably fair to say that the SMP, child of the U.S. JGOFS process studies, has focused primarily on characterizing an...
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Physiological studies of Trichodesmium species have been hindered by difficulties in maintaining actively growing, nitrogen-fixing cultures. Previous cultivation successes have not been widely duplicated. We present here a simple modified seawater medium and handling techniques which have been used to maintain actively growing Trichodesmium thiebautii in laboratory culture for over 1 year. The ...
متن کاملTrichodesmium – a widespread marine cyanobacterium with unusual nitrogen fixation properties
The last several decades have witnessed dramatic advances in unfolding the diversity and commonality of oceanic diazotrophs and their N2 -fixing potential. More recently, substantial progress in diazotrophic cell biology has provided a wealth of information on processes and mechanisms involved. The substantial contribution by the diazotrophic cyanobacterial genus Trichodesmium to the nitrogen i...
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ژورنال
عنوان ژورنال: Limnology and Oceanography Letters
سال: 2018
ISSN: 2378-2242,2378-2242
DOI: 10.1002/lol2.10092