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Quantifying Cyanothece growth under DIC limitation

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388971%3A_____%2F21%3A00550181" target="_blank" >RIV/61388971:_____/21:00550181 - isvavai.cz</a>

  • Alternative codes found

    RIV/60076658:12310/21:43903677 RIV/86652079:_____/21:00550181 RIV/60077344:_____/21:00550181

  • Result on the web

    <a href="https://www.sciencedirect.com/science/article/pii/S2001037021005018?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2001037021005018?via%3Dihub</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1016/j.csbj.2021.11.036" target="_blank" >10.1016/j.csbj.2021.11.036</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Quantifying Cyanothece growth under DIC limitation

  • Original language description

    The photoautotrophic, unicellular N-2-fixer, Cyanothece, is a model organism that has been widely used to study photosynthesis regulation, the structure of photosystems, and the temporal segregation of carbon (C) and nitrogen (N) fixation in light and dark phases of the diel cycle. Here, we present a simple quantitative model and experimental data that together, suggest external dissolved inorganic carbon (DIC) concentration as a major limiting factor for Cyanothece growth, due to its high C-storage requirement. Using experimental data from a parallel laboratory study as a basis, we show that after the onset of the light period, DIC was rapidly consumed by photosynthesis, leading to a sharp drop in the rate of photosynthesis and C accumulation. In N-2-fixing cultures, high rates of photosynthesis in the morning enabled rapid conversion of DIC to intracellular C storage, hastening DIC consumption to levels that limited further uptake. The N-2-fixing condition allows only a small fraction of fixed C for cellular growth since a large fraction was reserved in storage to fuel night-time N-2 fixation. Our model provides a framework for resolving DIC limitation in aquatic ecosystem simulations, where DIC as a growth-limiting factor has rarely been considered, and importantly emphasizes the effect of intracellular C allocation on growth rate that varies depending on the growth environment. (C) 2021 The Author(s). Published by Elsevier B.V. on behalf of Research Network of Computational and Structural Biotechnology.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10606 - Microbiology

Result continuities

  • Project

    Result was created during the realization of more than one project. More information in the Projects tab.

  • Continuities

Others

  • Publication year

    2021

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Computational and Structural Biotechnology Journal

  • ISSN

    2001-0370

  • e-ISSN

    2001-0370

  • Volume of the periodical

    19

  • Issue of the periodical within the volume

    2021

  • Country of publishing house

    NL - THE KINGDOM OF THE NETHERLANDS

  • Number of pages

    9

  • Pages from-to

    6456-6464

  • UT code for WoS article

    000731411300006

  • EID of the result in the Scopus database

    2-s2.0-85120717280