搜索结果: 1-12 共查到“海洋生物学 Trichodesmium”相关记录12条 . 查询时间(0.088 秒)
Production of organic matter by Trichodesmium IMS101 as a function of phosphorus source
Production of organic matter by Trichodesmium IMS101 as a function of phosphorus source
2014/4/17
Herein we present the results of a series of laboratory experiments conducted to delineate the relationship between dissolved organic phosphorus (DOP) utilization and organic matter production by the ...
Aerobic hydrogen production and dinitrogen fixation in the marine cyanobacterium Trichodesmium erythraeum IMS101
Aerobic hydrogen production dinitrogen fixation the marine cyanobacterium Trichodesmium erythraeum IMS101
2014/4/21
Rates of hydrogen production and acetylene reduction were measured in aerobic cultures of the marine cyanobacterium Trichodesmium erythraeum IMS101 grown in a supplemented seawater medium low in combi...
Assessment of relative phosphorus limitation of Trichodesmium spp. in the North Pacific, North Atlantic, and the north coast of Australia
Assessment of relative phosphorus limitation of Trichodesmium spp. in the North Pacific North Atlantic the north coast of Australia
2014/4/21
Trichodesmium spp. is a colonial diazotrophic cyanobacterium that occurs in the oligotrophic tropics and subtropics. Because of its ability to fix atmospheric N2, it is likely to be growth limited by ...
CO2 control of Trichodesmium N2 fixation, photosynthesis, growth rates, and elemental ratios: Implications for past, present, and future ocean biogeochemistry
CO2 control Trichodesmium N2 fixation photosynthesis growth rates elemental ratios past present future ocean biogeochemistry
2014/4/22
Diazotrophic marine cyanobacteria in the genus Trichodesmium contribute a large fraction of the new nitrogen entering the oligotrophic oceans, but little is known about how they respond to shifts in g...
Effects of dust deposition and river discharges on trace metal composition of Trichodesmium spp. in the tropical and subtropical North Atlantic Ocean
dust deposition river discharges trace metal composition Trichodesmium spp. tropical subtropical North Atlantic Ocean
2014/5/4
We present the elemental composition (Al, Cd, Co, Cu, Fe, Mn, Mo, Ni, V, Zn, and P) of field-collected Trichodesmium populations. To distinguish the effects of river discharges (Amazon and Niger River...
Nitrogen fixation and release of fixed nitrogen by Trichodesmium spp. in the Gulf of Mexico
Nitrogen fixation release fixed nitrogen Trichodesmium spp. Gulf of Mexico
2014/5/4
During a 3-yr study in the Gulf of Mexico, we measured dinitrogen (N2) fixation and nitrogen (N) release by Trichodesmium and compared these rates with water column N demand and the estimated N necess...
Flexible elemental stoichiometry in Trichodesmium spp. and its ecological implications
Flexible elemental stoichiometry Trichodesmium spp. ecological implications
2014/5/4
We conducted laboratory experiments to assess the bioelemental plasticity of cultures of Trichodesmium IMS101 under phosphorus (P)-replete, P-restricted, and light-limited conditions. The results reve...
The effect of growth rate, phosphorus concentration, and temperature on N2 fixation, carbon fixation, and nitrogen release in continuous cultures of Trichodesmium IMS101
growth rate phosphorus concentration temperature on N2 fixation carbon fixation nitrogen release continuous cultures Trichodesmium IMS101
2014/5/9
With the use of continuous culture systems, rates of dinitrogen (N2) and carbon (C) fixation and nitrogen (N)- and C-based doubling times were assessed in Trichodesmium IMS101 growing exponentially at...
The demise of the marine cyanobacterium, Trichodesmium spp., via an autocatalyzed cell death pathway
marine cyanobacterium Trichodesmium spp. uncatalyzed cell death pathway
2014/5/19
We present experimental laboratory evidence and field observations of an autocatalyzed, programmed cell death (PCD) pathway in the nitrogen-fixing cyanobacterium Trichodesmium spp., which forms massiv...
Bioavailability of iron to Trichodesmium colonies in the western subtropical Atlantic Ocean
iron Trichodesmium colonies western subtropical Atlantic Ocean
2014/5/22
Trichodesmium provides new nitrogen (N) to marine surface waters via N2 fixation, a process that requires a substantial amount of iron (Fe). Organic ligands in seawater that bind Fe could either incre...
Iron availability, cellular iron quotas, and nitrogen fixation in Trichodesmium
Iron availability cellular iron quotas nitrogen fixation Trichodesmium
2014/6/9
Iron availability is suggested to be a primary factor limiting nitrogen fixation in the oceans. This hypothesis is principally based on cost-benefit analyses of iron quotas in the dominant nitrogen-fi...
Iron fertilization and the Trichodesmium response on the West Florida shelf
Iron fertilization Trichodesmium West Florida shelf
2014/6/9
Prior laboratory studies of Trichodesmium have shown a high iron requirement that is consistent with the biochemical demand for iron in the enzyme nitrogenase. Summer delivery of iron, in the form of ...