搜索结果: 1-15 共查到“海洋生物学 uptake”相关记录40条 . 查询时间(0.154 秒)
Production of dissolved organic matter by phytoplankton and its uptake by heterotrophic prokaryotes in large tropical lakes
Production of dissolved organic matter by phytoplankton heterotrophic prokaryotes large tropical lakes
2014/7/10
In pelagic ecosystems, phytoplankton extracellular release can extensively subsidize the heterotrophic prokaryotic carbon demand. Time-course experiments were carried out to quantify primary productio...
Trait-based models of nutrient uptake in microbes extend the MichaelisMenten framework
Trait-based models nutrient uptake microbes extend MichaelisMenten framework
2014/4/2
In microbial competition theory, the Michaelis-Menten (MM) half-saturation coefficient is often considered to be a trait of an organism defining competitive strength in a trade-off conflict with maxim...
Ammonium uptake and dinitrogen fixation by the unicellular nanocyanobacterium Crocosphaera watsonii in nitrogen-limited continuous cultures
nanocyanobacterium Crocosphaera Ammonium uptake
2014/4/2
Ammonium uptake and nitrogen (N) fixation of the unicellular nanocyanobacterium Crocosphaera watsonii
isolated from the western subtropical North Pacific were determined in N-limited continuous cultu...
The effect of pH on the uptake of zinc and cadmium in marine phytoplankton: Possible role of weak complexes
The effect of pH on the uptake zinc cadmium marine phytoplankton Possible role of weak complexes
2014/4/2
In natural samples from the New Jersey coast and the Gulf of Alaska, zinc (Zn) and cadmium (Cd) uptake rates by phytoplankton decreased on average about 30%as pH was decreased from 8.5 to 7.9 or 7.7, ...
No limit? The multiphasic uptake of silicic acid by benthic diatoms
No limit multiphasic uptake silicic acid benthic diatoms
2014/4/18
Silicic-acid uptake kinetics for a field population of benthic diatoms were examined using a radioisotope tracer over a concentration range of 0–300mmol L21. The microphytobenthos half saturation cons...
Dissolved inorganic and organic phosphorus uptake inTrichodesmiumand the microbial community: The importance of phosphorus ester in the Sargasso Sea
Dissolved inorganic organic phosphorus uptake Trichodes mium microbial community phosphorus ester the Sargasso Sea
2014/4/17
The dynamics and relative importance of inorganic phosphate (Pi) and dissolved organic phosphorus (DOP) uptake were examined inTrichodesmiumand the microbial community.Trichodesmium DOP and Pi uptake ...
Variable sediment oxygen uptake in response to dynamic forcing
dynamic forcing Variable sediment oxygen
2014/4/16
Seiche-induced turbulence and the vertical distribution of dissolved oxygen above and within the sediment were
analyzed to evaluate the sediment oxygen uptake rate (JO2
), diffusive boundary layer t...
Peptide hydrolysis and the uptake of dipeptides by phytoplankton
Peptide hydrolysis the uptake of dipeptides phytoplankton
2014/4/18
Rates of peptide hydrolysis (using the fluorescent substrate, lucifer yellow anhydride-labeled tetra-alanine) and dipeptide uptake (using dually labeled, 15N and 13C, dialanine) were measured in phyto...
The influence of dissolved organic carbon on bacterial phosphorus uptake and bacteria-phytoplankton dynamics in two Minnesota lakes
dissolved organic carbon bacterial phosphorus uptake bacteria-phytoplankton dynamics two Minnesota lakes
2014/4/21
The balance of production in any ecosystem is dependent on the flow of limiting nutrients into either the autotrophic or heterotrophic components of the food web. To understand one of the important co...
Dissolved organic nitrogen uptake by seagrasses
Dissolved organic nitrogen uptake seagrasses
2014/4/21
We examined the ability of seagrasses to take up dissolved organic nitrogen (DON) with leaves (in situ) and roots (laboratory) in an oligotrophic tropical offshore meadow in Indonesia using 15 N-label...
Interaction between hydrodynamics and seagrass canopy structure: Spatially explicit effects on ammonium uptake rates
hydrodynamics seagrass canopy structure Spatially explicit effects ammonium uptake rates
2014/4/18
The hypotheses that (1) different seagrass morphologies may facilitate different nutrient uptake rates under similar hydrodynamic forcing and (2) this effect on nutrient uptake rates is spatially expl...
Inorganic carbon uptake by Southern Ocean phytoplankton
Inorganic carbon uptake Southern Ocean phytoplankton
2014/4/18
We report the results of laboratory and field studies examining inorganiccarbon (Ci) utilization by Southern Ocean phytoplankton. Both in monospecific laboratory cultures of diatoms and Phaeocystis an...
The influence of dissolved organic carbon on bacterial phosphorus uptake and bacteria-phytoplankton dynamics in two Minnesota lakes
The influence of dissolved organic carbon bacterial phosphorus uptake bacteria-phytoplankton dynamics two Minnesota lakes
2014/4/18
The balance of production in any ecosystem is dependent on the flow of limiting nutrients into either the autotrophic or heterotrophic components of the food web. To understand one of the important co...
Optimization-based model of multinutrient uptake kinetics
Optimization-based model multinutrient uptake kinetics
2014/4/22
We present a new, optimization-based model for uptake kinetics of multiple nutrients, which has the same number of parameters (two for each nutrient) as the Michaelis-Menten model. We fit this model a...
Ammonium uptake and growth limitation in marine phytoplankton
Ammonium uptake growth limitation marine phytoplankton
2014/4/21
We used continuous culture techniques and a sensitive fluorescence method to quantify relationships among ammonium (NH4+) concentration, cellular NH4+ uptake rates, and growth rate limitation for five...