photolithotrophic
METPO:1000658 · CLASS · REVIEWED
A trophic type in which an organism uses light as the energy source and inorganic compounds as electron donors, typically with carbon dioxide as the primary carbon source.
Photolithotrophic inorganic electron donor photosynthesis
Edge evidence
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photolithotrophic
uses energy source
light
METPO:2000010Photolithotrophic growth is powered by light.
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DOI:10.3389/fmicb.2017.00323light as an energy source
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photolithotrophic
uses electron donor
inorganic electron donor
METPO:2000009Lithotrophic phototrophs use inorganic electron donors.
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DOI:10.3390/antiox10060829oxidizes reduced sulfur compounds
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hydrogen sulfide
example of
inorganic electron donor
rdfs:subClassOfHydrogen sulfide is a representative inorganic electron donor.
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DOI:10.3390/antiox10060829hydrogen sulfide
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ferrous iron
example of
inorganic electron donor
rdfs:subClassOfFe(II) is a representative inorganic electron donor in photoferrotrophy.
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DOI:10.3389/fmicb.2017.00323reduced iron [Fe(II)] as an electron donor
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inorganic electron donor
feeds electrons into
anoxygenic photosynthesis
METPO:2007402Inorganic donors supply electrons to anoxygenic photosynthetic metabolism.
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DOI:10.3390/antiox10060829electron donor
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light
enables
anoxygenic photosynthesis
RO:0002327Light powers anoxygenic photosynthetic electron transport.
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DOI:10.3390/antiox10060829deriving energy from photosynthesis
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carbon dioxide
fixed during
anoxygenic photosynthesis
Many photolithotrophs reduce CO2 during photosynthetic growth.
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DOI:10.3390/antiox10060829carbon dioxide
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anoxygenic photosynthesis
produces
biomass
METPO:2000202Fixed carbon supports biomass formation.
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DOI:10.3389/fmicb.2017.00323inorganic carbon is fixed into organic matter
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light
provides energy to
photosynthetic reaction center
Light quanta excite the photosynthetic reaction center to drive electron transport.
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DOI:10.3389/fmicb.2024.1417714
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hydrogen sulfide
acts as electron donor for
anoxygenic photosynthesis
H2S is the main electron donor in sulfur-based anoxygenic photosynthesis.
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DOI:10.3389/fmicb.2024.1417714
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hydrogen sulfide oxidation
produces
elemental sulfur
METPO:2000202Phototrophic oxidation of H2S yields elemental sulfur.
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DOI:10.3389/fmicb.2024.1417714
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inorganic electron donor
supports
photosynthetic CO2 fixation
Oxidation of reduced sulfur compounds supports photosynthetic CO2 fixation.
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DOI:10.3390/life14050591
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Fe(II) oxidation
defines
photoferrotrophy
METPO:2007500Photoferrotrophy is the oxidation of reduced iron via anoxygenic photosynthesis.
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DOI:10.1038/s41561-024-01560-9
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Provenance
- Source
- METPO (2025-11-25)
- Author
- Luke Wang
- Definition source
- DOI:10.3390/antiox10060829
Parent traits (1)
Synonyms (1)
- photolithotroph
kg-microbe context
Matched 1 kg-microbe node via direct_metpo.
METPO:1000658[-1.986, -2.827, -4.047, -0.222, …]
Nearest neighbors in embedding space
- physiology carboxydotrophic 0.884
- physiology trophic type 0.880
- physiology hydrogenotrophic 0.879
- physiology photolithoautotrophic 0.877
- physiology photoorganoheterotrophic 0.829
- physiology lithoautotrophic 0.820
- physiology chemoautotrophic 0.786
- physiology mixotrophic 0.784
Curation history
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SEEDED_FROM_METPO · seed_from_metpo
imported from data/raw/metpo.owl (CLASS)
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ADDED_CAUSAL_GRAPH · codex
Added DOI-backed causal graph for light-driven anoxygenic photosynthesis with sulfide and Fe(II) as inorganic electron donors.
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GROUND_CAUSAL_PREDICATES · claude
Grounded 3 causal-edge predicate_id field(s) via mappings/predicate_grounding.tsv (METPO:2000010×1, METPO:2000009×1, METPO:2000202×1).
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GROUND_CAUSAL_PREDICATES · claude
Grounded 2 causal-edge predicate_id field(s) via mappings/predicate_grounding.tsv (rdfs:subClassOf×2).
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GROUND_CAUSAL_PREDICATES · claude
Grounded 1 causal-edge predicate_id field(s) via mappings/predicate_grounding.tsv (METPO:2007402×1).
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GROUND_CAUSAL_NODES · claude
Grounded 2 causal-node grounding field(s) via mappings/node_grounding.tsv (PATO:0001717×1, CHEBI:29033×1).
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GROUND_CAUSAL_NODES · claude
Grounded 2 causal-node grounding field(s) via mappings/node_grounding.tsv (METPO:1007502×1, METPO:1007501×1).
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RETYPE_CAUSAL_NODES · claude
Re-typed 1 causal-node node_type field(s) to align with CausalNodeTypeEnum semantics: biomass: BIOLOGICAL_PROCESS → CHEMICAL ×1.
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RENAME_PREDICATE_LABELS · claude
Renamed 1 causal-edge predicate label(s) to align with existing groundings: powers → enables ×1.
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GROUND_CAUSAL_PREDICATES · claude
Grounded 1 causal-edge predicate_id field(s) via mappings/predicate_grounding.tsv (RO:0002327×1).
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ENRICH_CAUSAL_GRAPH · claude
Added 5 evidence-backed generic edges (6 new nodes) from the deep-research report.
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GROUND_CAUSAL_PREDICATES · claude
Grounded 2 causal-edge predicate_id field(s) via mappings/predicate_grounding.tsv (METPO:2000202×1, METPO:2007500×1).
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GROUND_CAUSAL_NODES · claude
Grounded 1 causal-node grounding field(s) via mappings/node_grounding.tsv (CHEBI:26833×1).