Phosphorus limitation of nitrogen fixation by Trichodesmium in the central Atlantic Ocean

Article Abstract:

Research into marine fixation of atmospheric nitrogen by the cyanobacterium Trichodesmium is described. It seems that nitrogen fixation rates depend on the phosphorus content of Trichodesmium and not on iron content in Trichodesmium colonies or on dissolved iron levels in sea water.

Letter to the Editor

---

The impact of surface-adsorbed phosphorus on phytoplankton Redfield stoichiometry

Article Abstract:

The Redfield ratio of 106 carbons: 16 nitrogen: 1 phosphorus in marine phytoplankton is one of the foundations of ocean biogeochemistry with application in algal physiology, palaeoclimatology. The study reports that Redfield ratio are strongly affected by partitioning into surface-adsorbed and intracellular phosphorus pools.

Ocean, Oceans, Stoichiometry, Phytoplankton

---

A marine nitrogen cycle fix?

Article Abstract:

Evidence indicates that biological nitrogen fixation, the primary process responsible for putting nitrogen compounds into sea, is intimately associated with marine nitrogen fixation. It is implied that the ratio of nitrogen to phosphorus in seawater may be the central factor that regulates nitrogen fixation.

United States, Control, Sea-water, Seawater, Marine toxins

Similar abstracts:

• Abstracts: Conservation and elaboration of Hox gene regulation during evolution of the vertebrate head. Raising the roof
• Abstracts: Evolution of cooperation and conflict in experimental bacterial populations. Diversity peaks at intermediate productivity in a laboratory microcosm
• Abstracts: Acoustic signalling of hunger and thermal state by nestling tree swallows. False alarms and begging in nestling birds
• Abstracts: Cell fusion-independent differentiation of neural stem cells to the endothelial lineage. Progenitor cells from human brain after death
• Abstracts: Loss of superconductivity with the addition of Al to MgB2 and a structural transition in Mg1-xAlxB2. Strongly linked current flow in polycrystalline forms of the superconductor MgB2

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.