Cyanobacteria are photosynthetic organisms that play important roles in carbon cycling and are promising bioproduction chassis. Here, we isolate two novel cyanobacteria with 4.6Mbp genomes, UTEX 3221 and UTEX 3222, from a unique marine environment with naturally elevated CO2. We describe complete genome sequences for both isolates and, focusing on UTEX 3222 due to its planktonic growth in liquid, characterize biotechnologically relevant growth and biomass characteristics. UTEX 3222 outpaces other fast-growing model strains on a solid medium. It can double every 2.35 hours in a liquid medium and grows to high density (>31 g/L biomass dry weight) in batch culture, nearly double that of Synechococcus sp. PCC 11901, whose high-density growth was recently reported. In addition, UTEX 3222 sinks readily, settling more quickly than other fast-growing strains, suggesting favorable economics of harvesting UTEX 3222 biomass. These traits may make UTEX 3222 a compelling choice for marine carbon dioxide removal (CDR) and photosynthetic bioproduction from CO2. Overall, we find that bio-prospecting in environments with naturally elevated CO(2 )may uncover novel CO2-metabolizing organisms with unique characteristics.

Schubert M.G., Tang T.-C., Goodchild-Michelman I.M., Ryon K.A., Henriksen J.R., Chavkin T., et al. (2024). Cyanobacteria newly isolated from marine volcanic seeps display rapid sinking and robust, high-density growth. APPLIED AND ENVIRONMENTAL MICROBIOLOGY, 90(11), 1-23 [10.1128/aem.00841-24].

Cyanobacteria newly isolated from marine volcanic seeps display rapid sinking and robust, high-density growth

Turco G.;Quatrini P.;Milazzo M.;
2024-11-20

Abstract

Cyanobacteria are photosynthetic organisms that play important roles in carbon cycling and are promising bioproduction chassis. Here, we isolate two novel cyanobacteria with 4.6Mbp genomes, UTEX 3221 and UTEX 3222, from a unique marine environment with naturally elevated CO2. We describe complete genome sequences for both isolates and, focusing on UTEX 3222 due to its planktonic growth in liquid, characterize biotechnologically relevant growth and biomass characteristics. UTEX 3222 outpaces other fast-growing model strains on a solid medium. It can double every 2.35 hours in a liquid medium and grows to high density (>31 g/L biomass dry weight) in batch culture, nearly double that of Synechococcus sp. PCC 11901, whose high-density growth was recently reported. In addition, UTEX 3222 sinks readily, settling more quickly than other fast-growing strains, suggesting favorable economics of harvesting UTEX 3222 biomass. These traits may make UTEX 3222 a compelling choice for marine carbon dioxide removal (CDR) and photosynthetic bioproduction from CO2. Overall, we find that bio-prospecting in environments with naturally elevated CO(2 )may uncover novel CO2-metabolizing organisms with unique characteristics.
20-nov-2024
Settore BIOS-05/A - Ecologia
Settore BIOS-15/A - Microbiologia
Schubert M.G., Tang T.-C., Goodchild-Michelman I.M., Ryon K.A., Henriksen J.R., Chavkin T., et al. (2024). Cyanobacteria newly isolated from marine volcanic seeps display rapid sinking and robust, high-density growth. APPLIED AND ENVIRONMENTAL MICROBIOLOGY, 90(11), 1-23 [10.1128/aem.00841-24].
File in questo prodotto:
File Dimensione Formato  
2024 schubert-et-al-AEM.pdf

accesso aperto

Descrizione: PDF
Tipologia: Versione Editoriale
Dimensione 3.8 MB
Formato Adobe PDF
3.8 MB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10447/669570
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 0
  • ???jsp.display-item.citation.isi??? 0
social impact