搜索结果: 1-15 共查到“海洋科学 diatoms”相关记录33条 . 查询时间(0.072 秒)
Genetic switch lets marine diatoms do less work at higher CO2
Genetic switch marine diatoms higher CO2
2015/6/18
Diatoms in the world’s oceans exhale more oxygen than all the world’s rainforests. These tiny drifting algae generate about 20 percent of the oxygen produced on Earth each year, and invisibly recycle ...
Diatoms spread a high εNd-signature in the North Pacific Ocean
diatom silica frustules neodymium isotope seawater island arc loess
2017/4/11
The Nd and Sr isotopes of the acetic-acid-soluble, hydrochloric-acid-soluble, hydrofluoric-acid-soluble (siliceous)
fractions of settling particles collected in the highly diatom productive Bering Se...
We used a time-lapse imaging approach to examine cell division in the marine centric diatom Ditylum brightwellii and observed that daughter cells who inherited their parents' hypothecal frustule half ...
We used a time-lapse imaging approach to examine cell division in the marine centric diatomDitylum brightwelliiand observed that daughter cells who inherited their parents’ hypothecal frustule half we...
Temperature-induced stress leads to bleaching in larger benthic foraminifera hosting endosymbiotic diatoms
Temperature-induced stress bleaching larger benthic foraminifera hosting endosymbiotic diatoms
2014/4/4
Physiological mechanisms of bleaching were studied on larger benthic foraminifera (LBF) hosting endosymbiotic diatoms. Amphistegina radiata, Heterostegina depressa, and Calcarina hispida were exposed ...
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...
Rapid photoprotection in sea-ice diatoms from the East Antarctic pack ice
Rapid photoprotection sea-ice diatoms the East Antarctic pack ice
2014/4/17
Photoinhibition and D1 protein re-synthesis were investigated in bottom-dwelling sea-ice microalgal communities from the East Antarctic pack ice during early spring. Bottom-dwelling sea-ice microalgal...
Release of reactive bromine and iodine from diatoms and its possible role in halogen transfer in polar and tropical oceans
Release of reactive bromine iodine from diatoms possible role halogen transfer in polar tropical oceans
2014/4/18
An in situ incubation assay measuring the bromination and iodination of phenol red was developed to detect the release of reactive bromine and iodine (primarily hypobromous acid [HOBr] and hypoiodous ...
Release of reactive bromine and iodine from diatoms and its possible role in halogen transfer in polar and tropical oceans
Release of reactive bromine diatoms halogen transfer
2014/4/18
An in situ incubation assay measuring the bromination and iodination of phenol red was developed to detect
the release of reactive bromine and iodine (primarily hypobromous acid [HOBr] and hypoiodous...
Iodine assimilation by marine diatoms and other phytoplankton in nitrate-replete conditions
marine diatoms Iodine assimilation
2014/4/17
Several marine phytoplankton species, primarily diatoms, were examined for the accumulation of iodide (10
species) and iodate (9 species) using radioactive iodine-125 in f/2 artificial seawater, a ni...
The effects of Cu and Fe availability on the growth and Cu:C ratios of marine diatoms
The effects of Cu and Fe availability on the growth and Cu:C ratios of marine diatoms
2014/4/21
We investigated the effects of copper (Cu) and iron (Fe) availability on the growth rates, cellular Cu content, and steady-state Cu uptake rates of eight species of centric diatoms (coastal and oceani...
Vitamin B12 and cobalt cycling among diatoms and bacteria in Antarctic sea ice microbial communities
Vitamin B12 cobalt cycling among diatoms
2014/4/21
Within McMurdo Sound’s annual sea ice, assimilation and concentrations of vitamin B12 (cobalamin),
microbial community productivity, and biomass were examined among three 100-m2
quadrats where light...
Intrinsic growth and microzooplankton grazing on toxigenicPseudo-nitzschiaspp. diatoms from the coastal northeast Pacific
growth microzooplankton grazing xigenicPseudo-nitzschiaspp diatoms northeast Pacific
2014/4/18
We investigated the population ecology of toxigenic diatoms within the genusPseudo-nitzschiaon the Pacific Northwest coast during 2003, 2004, and 2005.Pseudo-nitzschiaspp. were widespread and abundant...
Photoprotection capacity differs among diatoms: Possible consequences on the spatial distribution of diatoms related to fluctuations in the underwater light climate
Photoprotection capacity among diatoms spatial distribution diatoms related to fluctuations underwater light climate
2014/4/22
In this study, we show a fundamental difference between diatom species from different marine habitats in their ability to cope with changes in irradiance. Estuarine species show a higher and more flex...
Strong purifying selection in the silicon transporters of marine and freshwater diatoms
Strong purifying silicon transporters of marine freshwater diatoms
2014/4/22
Marine and freshwater diatoms show several important differences in silicon physiology. In addition to containing an order of magnitude more silica in their cell walls, freshwater diatoms also appear ...