Julia Große
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View article: Chemogenetic activation of Gq signaling modulates dendritic development of cortical neurons in a time- and layer-specific manner
Chemogenetic activation of Gq signaling modulates dendritic development of cortical neurons in a time- and layer-specific manner Open
Designer receptors exclusively activated by designer drugs (DREADDs) are established tools for modulating neuronal activity. Calcium-mobilizing DREADD hM3Dq has been widely used to enhance neuronal activity. hM3Dq activates the Gq protein …
View article: A changing Arctic Ocean
A changing Arctic Ocean Open
[Introduction]: "The Arctic is the fastest changing region on the planet. It is also intrinsically tied to global processes, whether they are climatic, environmental or socio-economic. The impacts of climate change on the vast and multiple…
View article: A changing Arctic Ocean
A changing Arctic Ocean Open
[Introduction]: "The Arctic is the fastest changing region on the planet. It is also intrinsically tied to global processes, whether they are climatic, environmental or socio-economic. The impacts of climate change on the vast and multiple…
View article: Primary neurons lacking the SNAREs vti1a and vti1b show altered neuronal development
Primary neurons lacking the SNAREs vti1a and vti1b show altered neuronal development Open
Background Neurons are highly specialized cells with a complex morphology generated by various membrane trafficking steps. They contain Golgi outposts in dendrites, which are formed from somatic Golgi tubules. In trafficking membrane fusio…
View article: Optimistic Optimization of Gaussian Process Samples
Optimistic Optimization of Gaussian Process Samples Open
Bayesian optimization is a popular formalism for global optimization, but its computational costs limit it to expensive-to-evaluate functions. A competing, computationally more efficient, global optimization framework is optimistic optimiz…
View article: A changing Arctic Ocean
A changing Arctic Ocean Open
The Arctic is the fastest changing region on the planet. It is also intrinsically tied to global processes, whether they are climatic, environmental or socio-economic. The impacts of climate change on the vast and multiple interacting Arct…
View article: Summertime Amino Acid and Carbohydrate Patterns in Particulate and Dissolved Organic Carbon Across Fram Strait
Summertime Amino Acid and Carbohydrate Patterns in Particulate and Dissolved Organic Carbon Across Fram Strait Open
Amino acids (AA) and carbohydrates (CHO) are important components of the marine organic carbon cycle. Produced mainly by phytoplankton as part of the particulate organic carbon (POC) fraction, these compounds can be released into the outer…
View article: Submesoscale physicochemical dynamics directly shape bacterioplankton community structure in space and time
Submesoscale physicochemical dynamics directly shape bacterioplankton community structure in space and time Open
Submesoscale eddies and fronts are important components of oceanic mixing and energy fluxes. These phenomena occur in the surface ocean for a period of several days, on scales between a few hundred meters and few tens of kilometers. Remote…
View article: Amino acid and carbohydrate patterns in particulate carbon of different size-fractions across Fram Strait during POLARSTERN cruise PS107
Amino acid and carbohydrate patterns in particulate carbon of different size-fractions across Fram Strait during POLARSTERN cruise PS107 Open
Amino acids (AA) and carbohydrates (CHO) are produced by phytoplankton as part of the particulate organic carbon (POC) fraction, and are subsequently consumed by smaller heterotrophs. We investigated changes in quantity and quality of indi…
View article: Ocean acidification modifies biomolecule composition in organic matter through complex interactions
Ocean acidification modifies biomolecule composition in organic matter through complex interactions Open
The main source of marine organic carbon (OC) is autotrophic production, while heterotrophic degradation is its main sink. Increased anthropogenic CO 2 release leads to ocean acidification and is expected to alter phytoplankton community c…
View article: Submesoscale dynamics directly shape bacterioplankton community structure in space and time
Submesoscale dynamics directly shape bacterioplankton community structure in space and time Open
Submesoscale eddies and fronts are recognized as important components of oceanic mixing and energy fluxes. These submesoscale phenomena occur in the surface ocean for a period of a few days on scales between several hundred meters and a fe…
View article: Dynamics of organic matter and bacterial activity in the Fram Strait during summer and autumn
Dynamics of organic matter and bacterial activity in the Fram Strait during summer and autumn Open
The Arctic Ocean is considerably affected by the consequences of global warming, including more extreme seasonal fluctuations in the physical environment. So far, little is known about seasonality in Arctic marine ecosystems in particular …
View article: Supplementary material from "Dynamics of organic matter and bacterial activity in the Fram Strait during summer and autumn"
Supplementary material from "Dynamics of organic matter and bacterial activity in the Fram Strait during summer and autumn" Open
The Arctic Ocean is considerably affected by the consequences of global warming, including more extreme seasonal fluctuations in the physical environment. So far, little is known about seasonality in Arctic marine ecosystems in particular …
View article: Organic matter and bacteria measurements of POLARSTERN cruise PS114 and Maria S. Merian cruise MSM77
Organic matter and bacteria measurements of POLARSTERN cruise PS114 and Maria S. Merian cruise MSM77 Open
The discrete biogeochemical measurements from RV Polarstern PS114 and RV Maria S. Merian MSM77 sampled for dissolved organic matter, heterotrophic bacteria and gel particles. The parameters include chlorophyll, DOC/TDN/TDP/DOP, dissolved h…
View article: Organic matter composition of the water column in mesocosm study (Bergen 2011)
Organic matter composition of the water column in mesocosm study (Bergen 2011) Open
During the ocean acidification study in Bergen (2011) we measured concentrations of dissolved organic carbon (DOC) and nitrogen (DOC) as well as concentrations of total and dissolved amino acids and carbohydrates including individual compo…
View article: Organic matter composition of the water column in mesocosm study (Svalbard 2010)
Organic matter composition of the water column in mesocosm study (Svalbard 2010) Open
During the ocean acidification study in Svalbard (2010) we measured concentrations of dissolved organic carbon (DOC) and nitrogen (DON) as well as concentrations of total and dissolved amino acids and carbohydrates including individual com…
View article: Inter-Annual Variability of Organic Carbon Concentration in the Eastern Fram Strait During Summer (2009–2017)
Inter-Annual Variability of Organic Carbon Concentration in the Eastern Fram Strait During Summer (2009–2017) Open
The Arctic Ocean plays a key role in regulating the global climate, while being highly sensitive to climate change. Temperature in the Arctic increases faster than the global average, causing a loss of multiyear sea-ice and affecting marin…
View article: Nutrient limitation driven dynamics of amino acids and fatty acids in coastal phytoplankton
Nutrient limitation driven dynamics of amino acids and fatty acids in coastal phytoplankton Open
Coastal seas like the North Sea have been subject to major changes in nutrient inputs over the last decades, resulting in shifts of limiting nutrients for phytoplankton communities. Here, we investigated the seasonal and spatial distributi…
View article: Organic Matter in the Surface Microlayer: Insights From a Wind Wave Channel Experiment
Organic Matter in the Surface Microlayer: Insights From a Wind Wave Channel Experiment Open
The surface microlayer (SML) is the uppermost thin layer of the ocean and influencing interactions between the air and sea, such as gas exchange, atmospheric deposition and aerosol emission. Organic matter (OM) plays a key role in air-sea …
View article: Hidden in plain sight: The importance of cryptic interactions in marine plankton
Hidden in plain sight: The importance of cryptic interactions in marine plankton Open
Here, we present a range of interactions, which we term “cryptic interactions.” These are interactions that occur throughout the marine planktonic foodweb but are currently largely overlooked by established methods, which mean large‐scale …
View article: Competition for nutrients and light: testing advances in resource competition with a natural phytoplankton community
Competition for nutrients and light: testing advances in resource competition with a natural phytoplankton community Open
A key challenge in ecology is to understand how nutrients and light affect the biodiversity and community structure of phytoplankton and plant communities. According to resource competition models, ratios of limiting nutrients are major de…
View article: Nutrient deficiencies and the restriction of compensatory mechanisms in copepods
Nutrient deficiencies and the restriction of compensatory mechanisms in copepods Open
The flexible regulation of feeding behaviour and nutrient metabolism is a prerequisite for consumers to grow and survive under variable food conditions. Thus, it is essential to understand the ecological trade‐offs that restrict regulatory…
View article: From Ecological Stoichiometry to Biochemical Composition: Variation in N and P Supply Alters Key Biosynthetic Rates in Marine Phytoplankton
From Ecological Stoichiometry to Biochemical Composition: Variation in N and P Supply Alters Key Biosynthetic Rates in Marine Phytoplankton Open
One of the major challenges in ecological stoichiometry is to establish how environmental changes in resource availability may affect both the biochemical composition of organisms and the species composition of communities. This is a press…
View article: Ecological Dissertations in the Aquatic Sciences: An Effective Networking and Professional Development Opportunity for Early Career Aquatic Scientists
Ecological Dissertations in the Aquatic Sciences: An Effective Networking and Professional Development Opportunity for Early Career Aquatic Scientists Open
Historically, the Association for the Sciences of Limnology and Oceanography (ASLO) has facilitated the exchange of ideas among scientists of different disciplines in the aquatic sciences in order to address contemporary pressing issues an…
View article: A biosynthesis view on nutrient stress in coastal phytoplankton
A biosynthesis view on nutrient stress in coastal phytoplankton Open
Anthropogenic activities resulted in major shifts in nutrient inputs to coastal seas, which may have altered the biomolecule composition of phytoplankton because of different C : N : P requirements for biosynthesis. In order to understand …
View article: Resource limitation and the biochemical composition of marine phytoplankton
Resource limitation and the biochemical composition of marine phytoplankton Open
The aim of the work presented in this thesis was to determine the effects of nutrient availability on the biomolecule composition and synthesis in North Sea phytoplankton. Nutrient availability in coastal seas has changed substantially ove…
View article: Tracing carbon fixation in phytoplankton—compound specific and total <sup>13</sup>C incorporation rates
Tracing carbon fixation in phytoplankton—compound specific and total <sup>13</sup>C incorporation rates Open
Measurement of total primary production using 13 C incorporation is a widely established tool. However, these bulk measurements lack information about the fate of fixed carbon: the production of major cellular compounds (carbohydrates, ami…