Results 41 to 50 of about 382,564 (207)

The impact of iron limitation on the physiology of the Antarctic diatom Chaetoceros simplex [PDF]

, 2014
Iron availability strongly governs the growth of Southern Ocean phytoplankton. To investigate how iron limitation affects photosynthesis as well as the uptake of carbon and iron in the Antarctic diatom Chaetoceros simplex, a combination of chlorophyll a ...
Hassler, CS, Petrou, K, Ralph, PJ, Rost, B, Trimborn, S   +4 more
core   +3 more sources

Comparison study of iron preparations using a human intestinal model [PDF]

, 2013
Iron deficiency and related iron deficiency anaemia (IDA) are the most prevalent nutritional disorders worldwide. The standard treatment involves supple-mentation with solid or liquid iron supplement preparations, usually based on a ferrous salt such as ...
Farnaud, S., Farnaud, S., Renshaw, D., Renshaw, D., Somavarapu, S., Somavarapu, S., Zariwala, M.G., Zariwala, M.G.   +7 more
core   +4 more sources

Regulation of Copper Metabolism by Nitrogen Utilization in Saccharomyces cerevisiae

Journal of Fungi, 2021
To understand the relationship between carbon or nitrogen utilization and iron homeostasis, we performed an iron uptake assay with several deletion mutants with partial defects in carbon or nitrogen metabolism. Among them, some deletion mutants defective
Suzie Kang, Hyewon Seo, Min-Gyu Lee, Cheol-Won Yun   +3 more
doaj   +1 more source

Iron, silicate, and light co-limitation of three Southern Ocean diatom species [PDF]

, 2008
The effect of combined iron, silicate, and light co-limitation was investigated in the three diatom species Actinocyclus sp. Ehrenberg, Chaetoceros dichaeta Ehrenberg, and Chaetoceros debilis Cleve, isolated from the Southern Ocean (SO).
A Abelmann, A Leynaert, A Tsuda, BG Mitchell, CL La Rocha de, DA Hutchins, DE Sigmon, DJS Montagnes, DM Nelson, DM Nelson, DN Thomas, E Paasche, EV Dafner, FMM Morel, G Sarthou, H Hillebrand, HJW Baar de, I. Peeken, JA Raven, JH Martin, K Banse, K Grasshoff, K Leblanc, K. Lochte, KH Coale, KH Coale, KR Timmermans, L. J. Hoffmann, LJ Hoffmann, LJ Hoffmann, MA Brzezinski, MA Brzezinski, MA Brzezinski, P Claquin, P Tréguer, P Tréguer, PJ Harrison, PN Sedwick, RF Strzepek, RF Strzepek, RM Greene, RM Greene, S Blain, SW Chisholm, SW Jeffrey, T Oijen van, V Martin-Jézéquel, VM Franck, VM Franck, W Admiraal, WG Sunda   +50 more
core   +1 more source

Iron uptake mechanisms of pathogenic bacteria [PDF]

FEMS Microbiology Reviews, 1993
Most of the iron in a mammalian body is complexed with various proteins. Moreover, in response to infection, iron availability is reduced in both extracellular and intracellular compartments. Bacteria need iron for growth and successful bacterial pathogens have therefore evolved to compete successfully for iron in the highly iron-stressed environment ...
K G, Wooldridge, P H, Williams
openaire   +2 more sources

Alginate inhibits iron absorption from ferrous gluconate in a randomized controlled trial and reduces iron uptake into Caco-2 cells [PDF]

, 2014
Previous in vitro results indicated that alginate beads might be a useful vehicle for food iron fortification. A human study was undertaken to test the hypothesis that alginate enhances iron absorption.
A-S Sandberg, AA Wawer, AM Minihane, Anna A. Wawer, B Larsen, B Lonnerdal, B Sarria, BA Thompson, D Bosscher, D Gaitán, FC Hampson, Jack R. Dainty, James F. Collins, JD Cook, JH Min, JR Dainty, K Sreeram, L Chan, L Hallberg, L Zheng, Linda J. Harvey, M Hoppe, N Perez-Moral, Natalia Perez-Moral, PA MacPhail, Paul Sharp, R Collings, RE Conway, RF Hurrell, RF Hurrell, S Villalpando, Susan J. Fairweather-Tait   +31 more
core   +7 more sources

Mitochondrial Iron Transport and Homeostasis in Plants

Frontiers in Plant Science, 2013
Iron (Fe) is an essential nutrient for plants and although the mechanisms controlling iron uptake from the soil are relatively well understood, comparatively little is known about subcellular trafficking of iron in plant cells.
Anshika eJain, Erin L Connolly
doaj   +1 more source

Abnormal iron uptake and liver cancer [PDF]

Cancer Biology & Therapy, 2009
Hepatocellular carcinoma (HCC) is one of the most common cancers worldwide. Iron overload represents a significant risk factor in the development of HCC. Hereditary hemochromatosis (HH) is a genetic iron overload disease characterized by hepatic iron accumulation.
Juxing, Chen, Maja, Chloupková
openaire   +2 more sources

Possible role of membrane gamma-glutamyltransferase activity in the facilitation of transferrin-dependent and -independent iron uptake by cancer cells.

Cancer Cell International, 2003
Background The molecular mechanisms by which iron is physiologically transported trough the cellular membranes are still only partially understood. Several studies indicate that a reduction step of ferric iron to ferrous is necessary, both in the case of
Comporti Mario, Pieri Lisa, Dominici Silvia, Pompella Alfonso   +3 more
doaj   +1 more source

Anaerobic iron uptake by Escherichia coli [PDF]

Journal of Bacteriology, 1984
Assimilation and uptake of iron in anaerobic cultures of Escherichia coli were supported by iron supplied as ferrienterobactin, ferrichrome, and ferrous ascorbate; however, as in the aerobic cultures, ferrichrome A was a poor iron source. Albomycin inhibited both aerobically and anaerobically grown cells.
J S, Lodge, T, Emery
openaire   +2 more sources