How can large celled diatoms rapidly modulate sinking rates episodically?

Michel Lavoie, John A. Raven (Lead / Corresponding author)

    Research output: Contribution to journalArticlepeer-review

    6 Citations (Scopus)
    46 Downloads (Pure)


    Large variations in sinking rate of large-celled diatoms with a periodicity of ~10 s have their basis in cell density changes. Of the three mechanisms we model, the predicted energy cost is lower for periodic variations in the increase in cell volume than for variations in either the intracellular concentration of inorganic ions, or of organic solutes, that form solutions of different densities These predictions require experimental testing.

    Original languageEnglish
    Pages (from-to)3386-3389
    Number of pages4
    JournalJournal of Experimental Botany
    Issue number12
    Early online date12 Mar 2020
    Publication statusPublished - 22 Jun 2020


    • Cell volume
    • Density
    • Diatom
    • Episodic sinking
    • Solute concentration
    • energy cost
    • episodic sinking
    • density
    • solute concentration
    • diatom

    ASJC Scopus subject areas

    • Physiology
    • Plant Science


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