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Extracellular Enzymes in Aquatic Environments: Exploring the Link Between Genomic Potential and Biogeochemical Consequences
Microbial extracellular enzymes are fundamental to the cycling of elements in aquatic systems. The regulation of these enzymatic reactions in oceans, lakes and streams is under complex multiple control by environmental factors and the metabolic capacities of different taxa and communities. While the environmental control of enzyme-mediated processes has been investigated for over 100 years, in recent years tremendous progress in techniques to characterize the metabolic potential of microbial communities (“omics” techniques) has been made, such as high-throughput sequencing and new analytical algorithms. This book explores the controls, activities, and biogeochemical consequences of enzymes in aquatic environments. It brings together experimental studies and fieldwork conducted with natural microbial communities in marine and freshwater ecosystems as well as physiological, biochemical and molecular studies on microbial communities in these environments, or species isolated from them. Additionally, the book contributes to the ongoing debate on the impact of anthropogenic climate change and pollution on microbes, extracellular enzymes and substrate turnover.
Carbon Bridge to the Arctic
This eBook is a collection of articles from a Frontiers Research Topic. Frontiers Research Topics are very popular trademarks of the Frontiers Journals Series: they are collections of at least ten articles, all centered on a particular subject. With their unique mix of varied contributions from Original Research to Review Articles, Frontiers Research Topics unify the most influential researchers, the latest key findings and historical advances in a hot research area! Find out more on how to host your own Frontiers Research Topic or contribute to one as an author by contacting the Frontiers Editorial Office: frontiersin.org/about/contact.
Microbial Exopolymers: Sources, Chemico-Physiological Properties, and Ecosystem Effects in the Marine Environment
Microorganisms (bacteria, archaea, microeukaryotes) in marine environments secrete a diverse array of exopolymeric substances that facilitate attachment to surfaces, the formation of organic colloids and larger aggregations of cells (marine snow), and that can influence many ocean, as well as global, processes. The aim of this Research Topic is to highlight recent advances in the sources, chemistry and function of these microbial-produced macromolecules. We encouraged original research and reviews on exopolymeric substances, from their sources, chemico-physiological properties, functions and ecosystem effects, and including their role in the Gulf of Mexico following the Deepwater Horizon oil spill disaster.
Broadway Musicals, 1943-2004
On March 31, 1943, the musical Oklahoma! premiered and the modern era of the Broadway musical was born. Since that time, the theatres of Broadway have staged hundreds of musicals--some more noteworthy than others, but all in their own way a part of American theatre history. With more than 750 entries, this comprehensive reference work provides information on every musical produced on Broadway since Oklahoma's 1943 debut. Each entry begins with a brief synopsis of the show, followed by a three-part history: first, the pre-Broadway story of the show, including out-of-town try-outs and Broadway previews; next, the Broadway run itself, with dates, theatres, and cast and crew, including replacements, chorus and understudies, songs, gossip, and notes on reviews and awards; and finally, post-Broadway information with a detailed list of later notable productions, along with important reviews and awards.
Zeitgenössische Lyrik im Gesellschaftsprozess
Die Entwicklung der Bundesrepublik wird begleitet von einer Entwicklung lyrischer Ausdrucksformen. Untersucht wird, wie mit Hilfe von Lyrik auf politisches Zeitgeschehen im jeweiligen historischen Kontinuum reagiert wird, um gesellschaftliche Prozesse zu kommentieren oder durch Engagement und Antizipation verändernd in sie einzugreifen. Wo Politik und Literatur in ihrer Prozesshaftigkeit und Interdependenz erfasst werden, kann die wechselnde politische Relevanz von Lyrik bestimmt werden.
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