Effects of iron and zinc deficiency on elemental composition and silica production by diatoms

By C. Rocha, D. Hutchins, M. Brzezinski, Yaohong Zhang. 2000

151 citations recorded by the source corpus.

Subfields: Biomaterials, Geochemistry and Petrology, Oceanography

View Paper: https://www.semanticscholar.org/paper/6aa8132d24fb8ebe14e629483d0c1a0d2a038c8d

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Biomaterials

1. P. Harrison
2. Philip W. Boyd
3. M. Brzezinski
4. L. Ector
5. P. Soudant

In Geochemistry and Petrology

1. P. Harrison
2. A. Marchetti
3. Philip W. Boyd
4. N. M. Price
5. M. T. Maldonado

In Oceanography

1. P. Harrison
2. A. Marchetti
3. Philip W. Boyd
4. K. Timmermans
5. G. Sarthou
6. N. M. Price
7. A. Poulton
8. K. Selph

Citations in the corpus

• Element stoichiometries of individual plankton cells collected during the Southern Ocean Iron Experiment (SOFeX) (2004, background): “Bulk measurements of Si in both field-collected and laboratory-cultured populations of diatoms have shown that these cells become more highly silicified when their growth is limited by availability of other nutrients (Hutchins and Bruland 1998; De La Rocha et al. 2000).”
• Are you what you eat? Physiological constraints on organismal stoichiometry in an elementally imbalanced world (2005, unknown): “For example, Fe availability can alter C:Si ratios in diatoms (De La Rocha et al. 2000), limit primary production, and N-fixation by cyanobacteria, which can have cascading effects on phytoplankton community composition, marine food web structure and, ultimately, on the stoichiometry of upwelled…”
• One-dimensional ecosystem model of the equatorial Pacific upwelling system. Part I: model development and silicon and nitrogen cycle (2002, unknown): “De La Rocha et al. (2000) have shown that there is no effect of iron on KSiðOHÞ4 ; but a dramatic effect of iron on the maximum specific growth rate (Vmax).”
• Interactions between microplastics and phytoplankton aggregates: Impact on their respective fates (2015, background): “Biogenic opal is denser (~2.070 kg L -1 ) than organic matter (from ~ 0.860 kg L -1 for lipids to ~ 1.500 kg L -1 for carbohydrates) (Boyd et al., 2002; De La Rocha et al., 2000; Hutchins et al., 1998).”
• Diatom teratological forms and environmental alterations: a review (2009, background): “/3?and Zn2? stressed cells have a maximum silica uptake rate 2- to 3-fold lower than nonstressed cells (De La Rocha et al., 2000), and an effect of Cu contamination has also been demonstrated (Rueter & Morel, 1981).”
• Co-limitation of diatoms by iron and silicic acid in the equatorial Pacific (2011, background): “However, there are also examples that show no change in diatom Si quotas in response to Fe (Takeda, 1998; De La Rocha et al., 2000; Twining et al., 2004; Marchetti and Harrison, 2007; Marchetti and Cassar, 2009).”
• ENVIRONMENTAL FACTORS CONTROLLING PHYTOPLANKTON PROCESSES IN THE SOUTHERN OCEAN1 (2002, background): “…silicic acid and light on phytoplankton processes are less well understood (see Ragueneau et al. 2000), yet clearly there are interactive effects between iron supply and irradiance (Raven 1990) and silicic acid and iron supply on algal processes (Hutchins and Bruland 1998, De La Rocha et al. 2000).”
• The elemental stoichiometry and composition of an iron‐limited diatom (2005, background): “Among these, the response under transient conditions is an increase in C : N in low-Fe medium (La Roche et al. 1993; Muggli and Harrison 1996; De La Rocha et al. 2000), with no consensus on whether the increase is driven by changes in C, N, or both.”
• Pelagic functional group modeling: Progress, challenges and prospects (2006, unknown): “Culture studies have indeed shown that additional iron increases diatom growth rates and maximum rates of Si uptake, with little or no effect on KS (De La Rocha et al., 2000).”
• Growth rates, half‐saturation constants, and silicate, nitrate, and phosphate depletion in relation to iron availability of four large, open‐ocean diatoms from the Southern Ocean (2004, background): “The growth of heavy, more silicified diatoms under Fe-limiting conditions will result in a more efficient draw down of silicate (silicate pump; Dugdale et al. 1995), leading to low iron, low silicate, high nitrate, but low chlorophyll waters (De La Rocha et al. 2000).”
• Diatom succession, silicification and silicic acid availability in Belgian coastal waters (Southern North Sea) (2002, background): “Although alteration of the kinetics of silica production by iron and zinc stress has been reported (De La Rocha et al. 2000), the increase of Si:C may be attributed to a slowdown of the growth process by light and nutrients without affecting the diatom silicic acid uptake and silica deposition…”
• Effect of iron deficiency on diatom cell size and silicic acid uptake kinetics (2004, background): “De La Rocha et al. (2000) did not find any change of the halfsaturation constant of T. weissflogii grown in low Fe conditions.”
• Coupled changes in the cell morphology and elemental (C, N, and Si) composition of the pennate diatom Pseudo‐nitzschia due to iron deficiency (2007, background): “Furthermore, others have either failed to observe any change in the Si : N ratio of iron-stressed diatoms (De La Rocha et al. 2000), or have suggested that an increase in the dissolved Si(OH)4 : N uptake ratio does not occur when both new (NO3-based) and regenerated (i.e., ammonium, urea-based)…”
• Growth physiology and fate of diatoms in the ocean: a review (2005, background): “Recent studies showed the strong impact on Fe limitation on the elemental ratios Si:N and Si:C (Marin and Fitzwater, 1988; Hutchins and Bruland, 1998; Hutchins et al., 1998; Takeda, 1998; De La Rocha et al., 2000; Franck et al., 2000; Bucciarelli et al., ms in review; Brzezinski et al., 2003).”