|
|
Article: Protozoan grazers: they may influence the biological availability of iron to phytoplankton.(Marine Biodiversity)(Cover Story)
- Article from:
- Oceanus
- Article date:
- March 22, 1996
- Author:
CopyrightCOPYRIGHT 1996 Woods Hole Oceanographic Institution. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
|
Iron is an essential micronutrient for marine life, yet it is highly insoluble in seawater. Dissolved iron concentrations in the oceans are exceedingly low, and much of the iron that is present occurs in relatively refractory forms, such as very fine particles (colloids), which are difficult for organisms to assimilate. Some scientists propose that, in many areas of the world's oceans, iron may actually limit the growth of marine phytoplankton, the primary producers in the oceanic water column. Biologists and chemists at WHOI and elsewhere are currently investigating the mechanisms phytoplankton use to obtain the iron they need. Considerable attention is focused on how the ...
Related newspaper, magazine, and journal articles:
|
|
Article: Bilateral renal oncocytosis with renal failure
Archives of Pathology & Laboratory Medicine;
June 1, 2002 ;
700+ words
... ... cases, electron microscopy and Hale colloidal iron staining may help identify chromophobe ... showed specific reactivity with Hale colloidal iron staining. From these findings, an ... tumors is considered possible.6 Hale colloidal iron positivity is useful in distinguishing ...
|
|