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Central transcriptional regulator controls photosynthetic growth and carbon storage in response to high light.
Steichen, Seth; Deshpande, Arnav; Mosey, Megan; Loob, Jessica; Douchi, Damien; Knoshaug, Eric P; Brown, Stuart; Nielsen, Robert; Weissman, Joseph; Carrillo, L Ruby; Laurens, Lieve M L.
Afiliación
  • Steichen S; Bioenergy Science and Technology Directorate, National Renewable Energy Laboratory, 15013 Denver West Parkway, Golden, CO, 80401, USA.
  • Deshpande A; Bioenergy Science and Technology Directorate, National Renewable Energy Laboratory, 15013 Denver West Parkway, Golden, CO, 80401, USA.
  • Mosey M; Bioenergy Science and Technology Directorate, National Renewable Energy Laboratory, 15013 Denver West Parkway, Golden, CO, 80401, USA.
  • Loob J; Bioenergy Science and Technology Directorate, National Renewable Energy Laboratory, 15013 Denver West Parkway, Golden, CO, 80401, USA.
  • Douchi D; Bioenergy Science and Technology Directorate, National Renewable Energy Laboratory, 15013 Denver West Parkway, Golden, CO, 80401, USA.
  • Knoshaug EP; Bioenergy Science and Technology Directorate, National Renewable Energy Laboratory, 15013 Denver West Parkway, Golden, CO, 80401, USA.
  • Brown S; ExxonMobil Technology and Engineering Co. (EMTEC), CLD286 Annandale, 1545 Route 22 East, Annandale, NJ, 08801, USA.
  • Nielsen R; ExxonMobil Technology and Engineering Co. (EMTEC), CLD286 Annandale, 1545 Route 22 East, Annandale, NJ, 08801, USA.
  • Weissman J; ExxonMobil Technology and Engineering Co. (EMTEC), CLD286 Annandale, 1545 Route 22 East, Annandale, NJ, 08801, USA.
  • Carrillo LR; ExxonMobil Technology and Engineering Co. (EMTEC), CLD286 Annandale, 1545 Route 22 East, Annandale, NJ, 08801, USA.
  • Laurens LML; Bioenergy Science and Technology Directorate, National Renewable Energy Laboratory, 15013 Denver West Parkway, Golden, CO, 80401, USA. lieve.laurens@nrel.gov.
Nat Commun ; 15(1): 4842, 2024 Jun 06.
Article en En | MEDLINE | ID: mdl-38844786
ABSTRACT
Carbon capture and biochemical storage are some of the primary drivers of photosynthetic yield and productivity. To elucidate the mechanisms governing carbon allocation, we designed a photosynthetic light response test system for genetic and metabolic carbon assimilation tracking, using microalgae as simplified plant models. The systems biology mapping of high light-responsive photophysiology and carbon utilization dynamics between two variants of the same Picochlorum celeri species, TG1 and TG2 elucidated metabolic bottlenecks and transport rates of intermediates using instationary 13C-fluxomics. Simultaneous global gene expression dynamics showed 73% of the annotated genes responding within one hour, elucidating a singular, diel-responsive transcription factor, closely related to the CCA1/LHY clock genes in plants, with significantly altered expression in TG2. Transgenic P. celeri TG1 cells expressing the TG2 CCA1/LHY gene, showed 15% increase in growth rates and 25% increase in storage carbohydrate content, supporting a coordinating regulatory function for a single transcription factor.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Fotosíntesis / Factores de Transcripción / Carbono / Luz Idioma: En Revista: Nat Commun Asunto de la revista: BIOLOGIA / CIENCIA Año: 2024 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Reino Unido
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Fotosíntesis / Factores de Transcripción / Carbono / Luz Idioma: En Revista: Nat Commun Asunto de la revista: BIOLOGIA / CIENCIA Año: 2024 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Reino Unido