THE TRANSPORT AND FUNCTION OF SILICON IN PLANTS

@article{Raven1983THETA,
  title={THE TRANSPORT AND FUNCTION OF SILICON IN PLANTS},
  author={John A. Raven},
  journal={Biological Reviews},
  year={1983},
  volume={58}
}
  • J. Raven
  • Published 1 May 1983
  • Biology, Environmental Science
  • Biological Reviews
A number of lines of evidence (Mr, number of ‐OH groups, measured fluxes at inner mitochondrial membranes) suggest the intrinsic PSi(OH)4 of about 10‐10 m s‐1 in the plant cell plasmalemma. While relatively low, such a PSi(OH)4 could maintain the intracellular concentration of Si(OH)4 equal to that in the medium for a phytoplankton cell of 5 μm radius growing with a generation time of 24 h. Such passive entry could not account for SiO, precipitation such as is required for scale (Chrysophyceae… 
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Chapter 3 Silicon transport at the cell and tissue level

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Patterns and regulation of silicon accumulation in Synechococcus spp.

A working model of the mechanisms governing the Si content and rate of Si acquisition in Synechococcus is constructed and it is implied that observed Si acquisition rates are too rapid to be supported by lipid‐solubility diffusion of Si through the plasmalemma; however, facilitated diffusion involving membrane protein channels may suffice.

Understanding the Sub-Cellular Dynamics of Silicon Transportation and Synthesis in Diatoms Using Population-Level Data and Computational Optimization

A mathematical model for silicon dynamics in the diatom Thalassiosira pseudonana in four compartments is constructed, robust, proven by sensitivity and perturbation analysis, and predicts dynamics of intracellular nutrients and enzymes in different compartments.

UNCOUPLING OF SILICON COMPARED WITH CARBON AND NITROGEN METABOLISMS AND THE ROLE OF THE CELL CYCLE IN CONTINUOUS CULTURES OF THALASSIOSIRA PSEUDONANA (BACILLARIOPHYCEAE) UNDER LIGHT, NITROGEN, AND PHOSPHORUS CONTROL1

The elemental composition and the cell cycle stages of the marine diatom Thalassiosira pseudonana Hasle and Heimdal were studied in continuous cultures over a range of different light‐ (E), nitrogen‐ (N), and phosphorus‐ (P) limited growth rates and showed a highly significant increase in the amount of biogenic silica per cell and per cell surface with decreasing growth rates.

Costs and benefits of low intracellular osmolarity in cells of freshwater algae

The analysis of costs and benefits of a low intracellular osmolarity in freshwater algal cells is extended to see if the lowest intraceells observed in such cells are compatible with what the authors think they know of the constraints on the minimum concentrations of individual essential solutes and, second, if there is any scope for further reduction in intrACEllular oSMolarity with the attendant quantitative benefits which could accrue.

Regulation of the Si and C uptake and of the soluble free-silicon pool in a synchronised culture of Cylindrotheca fusiformis (Bacillariophyceae): effects on the Si/C ratio

Variations in the Si/C ratio demonstrated the different control mechanisms of Si and C metabolisms during the course of the cell- and photocycle.

Effects of silicon on tolerance to water deficit and heat stress in rice plants (Oryza sativa L.), monitored by electrolyte leakage

SummaryTo evaluate the positive efTects of silicon on the stress tolerance of rice plants, we measured the electrolyte leakage (El) from leaf tissue caused by desiccation with polyethylene glycol…

Silicon--a central metabolite for diatom growth and morphogenesis.

Almost all diatoms show a strict dependence on silica for growth, which suggests that this metabolite occupies a central position in diatom metabolism.
...

References

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  • Environmental Science
    Advances in microbial physiology
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