搜索结果: 1-15 共查到“海洋科学 diatom”相关记录49条 . 查询时间(0.203 秒)
Coexisting in a Sea of Competition Similar Diatom Species Seek Out Nutrients in Different Ways
Diatom Species Seek Out Nutrients Different Ways
2015/4/29
Diversity of life abounds on Earth, and there's no need to look any farther than the ocean's surface for proof. There are over 200,000 species of phytoplankton alone, and all of those species of micro...
Trait-based representation of diatom functional diversity in a plankton functional type model of the eutrophied southern North Sea
diatom functional diversity North Sea
2014/11/28
We introduce a trait-based description of diatom functional diversity to an existing plankton functional type
(PFT) model, implemented for the eutrophied coastal ecosystem in the Southern Bight of th...
Trait-based representation of diatom functional diversity in a plankton functional type model of the eutrophied southern North Sea
diatom functional diversity a plankton functional type model the eutrophic southern North Sea
2014/10/16
We introduce a trait-based description of diatom functional diversity to an existing plankton functional type (PFT) model, implemented for the eutrophied coastal ecosystem in the Southern Bight of the...
Quantifying diatom aspirations: Mechanical properties of chain-forming species
Quantifying diatom aspirations Mechanical properties chain-forming species
2014/4/2
Diatoms developed a variety of mechanisms to form chain-like colonies, resulting in diverse morphologies and bulk mechanical properties. These properties affect translation, rotation, and deformation ...
Methionine synthase interreplacement in diatom cultures and communities: Implications for the persistence of B12 use by eukaryotic phytoplankton
Methionine synthase interreplacement diatom cultures communities: Implications persistence of B12 eukaryotic phytoplankton
2014/4/2
Three proteins related to vitamin B12 metabolism in diatoms were quantified via selected reaction monitoring mass spectrometry: B12-dependent and B12-independent methionine synthase (MetH, MetE) and a...
Iron and copper limitations differently affect growth rates and photosynthetic and physiological parameters of the marine diatom Pseudo-nitzschia delicatissima
Iron and copper limitations differently affect growth rates photosynthetic and physiological parameters marine diatom Pseudo-nitzschia delicatissima
2014/4/2
In ～ 50% of the ocean, iron (Fe) limits phytoplankton growth, including that of the diatom Pseudo-nitzschia. Fe-limited Pseudo-nitzschia spp. may produce the potent neurotoxin domoic acid (DA) to acce...
Quantifying diatom aspirations: Mechanical properties of chain-forming species
Quantifying diatom aspirations Mechanical properties chain-forming species
2014/4/4
Diatoms developed a variety of mechanisms to form chain-like colonies, resulting in diverse morphologies and bulk mechanical properties. These properties affect translation, rotation, and deformation ...
Diatom sinking speeds: Improved predictions and insight from a modified Stokes’ law
mproved predictions insight
2014/4/17
Accurately predicting the size-dependant sinking rate of diatoms is necessary to fully understand the cycling of
oceanic carbon and silicon. Stokes’ law predicts that sinking velocity should be propo...
The time for sex: A biennial life cycle in a marine planktonic diatom
The time for sex A biennial life cycle a marine planktonic diatom
2014/4/16
Whereas it is accepted that the population dynamics of higher organisms isstrongly grounded in life history processes, such as the time taken to mature and reproduce, regulation in the abundance of aq...
Factors influencing the initiation of blooms of the raphidophyte Heterosigma akashiwo and the diatom Skeletonema costatum in a port in Japan
Factors influencing the initiation of blooms raphidophyte Heterosigma akashiwo the diatom Skeletonema costatum in a port in Japan
2014/4/21
We investigated how environmental factors initiate Heterosigma akashiwo and Skeletonema costatum blooms from resting stages in bottom sediments in a shallow port over 2 yr. Using field-collected sedim...
Nickel limitation and zinc toxicity in a urea-grown diatom
Nickel limitation zinc toxicity urea-grown diatom
2014/4/21
When growing on urea as a nitrogen source, diatoms must accumulate nickel (Ni), a cofactor in the urease enzyme, which hydrolyzes urea. The uptake of Ni at low ambient concentrations is particularly c...
The interaction between inorganic iron and cadmium uptake in the marine diatom Thalassiosira oceanica
inorganic iron cadmium uptake
2014/4/21
We examined substrate-saturated Fe(II) vs. Fe(III) uptake rates of Thalassiosira oceanica preconditioned to
varying degrees of Fe limitation. Inorganic Fe(III) uptake rates by Fe-sufficient T. oceani...
Copepod reproduction is unaffected by diatom aldehydes or lipid composition
Copepod reproduction unaffected diatom aldehydes lipid composition
2014/4/21
We investigated whether reduced reproductive success of copepods fed with diatoms was related to nutritional imbalances with regard to essential lipids or to the production of inhibitory aldehydes. In...
Acclimation to elevated carbon dioxide and ultraviolet radiation in the diatom Thalassiosira pseudonana: Effects on growth, photosynthesis, and spectral sensitivity of photoinhibition
Acclimation to elevated carbon dioxide ultraviolet radiation the diatom Thalassiosira pseudonana on growth photosynthesis spectral sensitivity photoinhibition
2014/4/21
We studied the effects of elevated CO2 concentrations (0.03%vs. 0.1%) on light absorption, membrane permeability, growth, and carbon fixation under photosynthetically active radiation (PAR) and ultrav...
Nickel limitation and zinc toxicity in a urea-grown diatom
Nickel limitation zinc toxicity a urea-grown diatom
2014/4/18
When growing on urea as a nitrogen source, diatoms must accumulate nickel (Ni), a cofactor in the urease enzyme, which hydrolyzes urea. The uptake of Ni at low ambient concentrations is particularly c...