Deep-seaHydrothermal VentsDiscoveredin1977Biologicalphenomena20707:21:03850/0212/23/8117:12Revolutionizedperceptions ofDeep seaPrimaryproductionSymbioses
Deep-sea Hydrothermal Vents • Discovered in 1977 • Biological phenomena Revolutionized perceptions of Deep sea Primary production Symbioses
Chemosynthesis:Production oforganic compounds usinginorganic compoundsfor both energy and carbon
Production of organic compounds using inorganic compounds for both energy and carbon. Chemosynthesis:
ChemosynthesisEarthMarsEuropa
Chemosynthesis. Mars Earth Europa
ChemoautotrophsSubstrates for EnergyGeneration:H2S + O2CarbonMetabolism:C1→C
Carbon Metabolism: C1 C3 Substrates for Energy Generation: H2S + O2 Chemoautotrophs
ResearchQuestionsHowwidespreadarethesesymbiosesin nature?Whoarethesymbionts?Phylogenetic affiliations? Metabolic diversity?Host/symbiontassociationsspecies-specific?Role in the cycling of energy,carbon, and nutrients?Evolution of chemosynthetic symbiontsparallelevolution ofeukaryoticorganelles?
Research Questions How widespread are these symbioses in nature? Who are the symbionts? Phylogenetic affiliations? Metabolic diversity? Host/symbiont associations species-specific? Role in the cycling of energy, carbon, and nutrients ? Evolution of chemosynthetic symbionts parallel evolution of eukaryotic organelles?