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ERODERS

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Ecological and evolutionary role of specialized bacteria in algae health and car...

Ecological and evolutionary role of specialized bacteria in algae health and carbon sequestration Marine algae fixing CO2 into organic matter is central to the global carbon cycle. While the food chain and marine bacteria consume roughly half of the fixed carbon, a harder-to-degrade fraction remains in the ocean, naturally seq... ver más

31/03/2030

MPG

2M€

Presupuesto del proyecto: 2M€

Líder del proyecto

MAXPLANCKGESELLSCHAFT ZUR FORDERUNG DER WISSE... No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

Fecha límite participación Sin fecha límite de participación.

Financiación concedida El organismo HORIZON EUROPE notifico la concesión del proyecto el día 2024-09-12

ERC-2024-STG: ERC STARTING GRANTS Scope:Objectives

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1 Participantes

MPG

1.50M€ | Lider

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Duración del proyecto: 66 meses Fecha Inicio: 2024-09-12
Fecha Fin: 2030-03-31

Líder del proyecto

MAXPLANCKGESELLSCHAFT ZUR FORDERUNG DER WISSE... No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

Presupuesto del proyecto 2M€

Fecha límite de participación Sin fecha límite de participación.

Descripción del proyecto Marine algae fixing CO2 into organic matter is central to the global carbon cycle. While the food chain and marine bacteria consume roughly half of the fixed carbon, a harder-to-degrade fraction remains in the ocean, naturally sequestering CO2 and lessening climate change effects. This remaining fraction is mainly derived from algal complex glycans that provide structural support, defense against microbial pathogens, and can be a carbon source for the algae microbiome. The specialized bacteria feeding on complex glycans are integral to the algae microbiome, yet, have been historically dismissed. ERODERS focuses on the unidentified mechanisms supporting the interactions between bacteria feeding on complex fucose-containing sulfated polysaccharides (FCPS) and the (host) algae that produce them. I propose that specialized bacteria have co-evolved with algae and have a key role in unlocking glycans that maintain the algae microbiome and simultaneously modify the structure of glycans that participate in carbon sequestration processes. Bacteria belonging to the Verrucomicrobiota and Planctomycetota phyla are the only groups living on algae that carry the enzymes to consume FCSPs. Using a combination of cutting-edge approaches (multi-omic, visualization, and physiologic examination), we will expand into the unknown diversity and population structure of FCSP degrading bacteria on micro and macroalgae. To tease apart the effects on algae health, we will incubate the model brown algae Ectocarpus with FCSP-degrading bacteria under laboratory conditions and examine both the response of incubated bacteria and the impact on the algae growth and its microbiome. This proposal presents a unique opportunity to unveil the microbial diversity and mechanisms that link bacteria to the metabolism of complex glycans involved in carbon sequestration processes and the evolutionary significance shaping the relationship between bacteria hosts with implications from marine to gut ecosystems

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