dinoflagellate cingulum

GO:0097611 · Other · Subcellular region · Proposed

A cell surface furrow that wraps around a dinoflagellate cell; the transverse flagellum lies in it. [GO:0097611]

Synonyms: cingulum; girdle; transverse groove

Taxonomic distribution

NCBITaxon:2864 Dinophyceae — VARIABLE: GO:0097611 places this cingulum cell-surface furrow in Dinophyceae and defines it as wrapping around a dinoflagellate cell. [GO:0097611]

The dinoflagellate cingulum is a cell-surface furrow that wraps around the dinoflagellate cell.

Subject	Predicate	Object	Evidence
dinoflagellate cingulum	is a	cell surface furrow	`GO:0097611` The GO graph links GO:0097611 to GO:0097610 by rdfs:subClassOf.

CURATION_TODO (OPEN): Add cingulum molecular components only after directly localized constituents and exact source-neutral family groundings have been identified. GO defines the dinoflagellate cingulum as a cell-surface furrow and places it in Dinophyceae, but this pass did not find exact family-level evidence for cingulum-specific molecular constituents.

GO:0097611 Gene Ontology cellular-component term for the dinoflagellate cingulum.
GO:0097610 Gene Ontology cellular-component parent term for cell surface furrow.
PMID:7002229 PubMed record for Taylor 1980, the subscription Biosystems dinoflagellate-evolution review cited by GO:0097611; EuropePMC reported no PMC, open-access, full-text, or PDF route in this pass.
DOI:10.1016/0303-2647(80)90006-4 Crossref and EuropePMC metadata identify DOI:10.1016/0303-2647(80)90006-4 as the Taylor 1980 Biosystems review behind PMID:7002229; no article-body text was reachable through the checked metadata routes, so this record uses it only as bibliographic corroboration for the GO definition xref.

2026-10-02T16:35:08Z codex · CREATED_RECORD — Scaffolded by scripts/new_record.py
2026-10-02T16:35:54Z codex · EXPANDED_RECORD — Added GO cingulum synonymy, GO cell-surface-furrow parentage, Dinophyceae taxon evidence, record-level PMID/DOI evidence, and a curation TODO for cingulum molecular components.
2026-10-02T16:49:48Z codex · ADDRESSED_PR_REVIEW — Addressed PR #1924 review issues #1925 and #1926 by adding a nonmechanistic GO is-a topology graph and marking the Taylor 1980 PMID/DOI evidence as metadata-only with no reachable full text.