Počet záznamů: 1
Electron & Biomass Dynamics of Cyanothece Under Interacting Nitrogen & Carbon Limitations
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SYSNO ASEP 0542698 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Electron & Biomass Dynamics of Cyanothece Under Interacting Nitrogen & Carbon Limitations Tvůrce(i) Rabouille, S. (FR)
Campbell, Douglas Andrew (MBU-M)
Masuda, Takako (MBU-M) ORCID
Zavřel, Tomáš (UEK-B) RID, SAI, ORCID
Bernát, Gábor (MBU-M) ORCID
Polerecky, L. (NL)
Halsey, K. (US)
Eichner, Meri (MBU-M) ORCID, RID
Kotabová, Eva (MBU-M) RID, ORCID
Stephan, S. (DE)
Lukeš, Martin (MBU-M) ORCID
Claquin, P. (FR)
Bonomi-Barufi, J. (BR)
Lombardi, A. T. (BR)
Červený, Jan (UEK-B) RID, ORCID, SAI
Suggett, D. (AU)
Giordano, Mario (MBU-M) ORCID
Kromkamp, J. C. (NL)
Prášil, Ondřej (MBU-M) RID, ORCIDČíslo článku 617802 Zdroj.dok. Frontiers in Microbiology. - : Frontiers Research Foundation - ISSN 1664-302X
Roč. 12, APR 9 2021 (2021)Poč.str. 21 s. Jazyk dok. eng - angličtina Země vyd. CH - Švýcarsko Klíč. slova Cyanothece ; Crocosphaera subtropica ; photosynthesis ; light limitation ; carbon limitation ; nitrogen fixation Vědní obor RIV EE - Mikrobiologie, virologie Obor OECD Microbiology Vědní obor RIV – spolupráce Ústav výzkumu globální změny - Botanika CEP EF16_027/0007990 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy GA20-17627S GA ČR - Grantová agentura ČR EF16_026/0008413 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy GA19-00973S GA ČR - Grantová agentura ČR Způsob publikování Open access Institucionální podpora MBU-M - RVO:61388971 ; UEK-B - RVO:86652079 UT WOS 000642535100001 EID SCOPUS 85104597360 DOI 10.3389/fmicb.2021.617802 Anotace Marine diazotrophs are a diverse group with key roles in biogeochemical fluxes linked to primary productivity. The unicellular, diazotrophic cyanobacterium Cyanothece is widely found in coastal, subtropical oceans. We analyze the consequences of diazotrophy on growth efficiency, compared to NO3--supported growth in Cyanothece, to understand how cells cope with N-2-fixation when they also have to face carbon limitation, which may transiently affect populations in coastal environments or during blooms of phytoplankton communities. When grown in obligate diazotrophy, cells face the double burden of a more ATP-demanding N-acquisition mode and additional metabolic losses imposed by the transient storage of reducing potential as carbohydrate, compared to a hypothetical N-2 assimilation directly driven by photosynthetic electron transport. Further, this energetic burden imposed by N-2-fixation could not be alleviated, despite the high irradiance level within the cultures, because photosynthesis was limited by the availability of dissolved inorganic carbon (DIC), and possibly by a constrained capacity for carbon storage. DIC limitation exacerbates the costs on growth imposed by nitrogen fixation. Therefore, the competitive efficiency of diazotrophs could be hindered in areas with insufficient renewal of dissolved gases and/or with intense phytoplankton biomass that both decrease available light energy and draw the DIC level down. Pracoviště Mikrobiologický ústav Kontakt Eliška Spurná, eliska.spurna@biomed.cas.cz, Tel.: 241 062 231 Rok sběru 2022 Elektronická adresa https://www.frontiersin.org/articles/10.3389/fmicb.2021.617802/full
Počet záznamů: 1