MeSH Browser

MeSH Heading: Cotyledon
Tree Number(s): A18.024.500.750.333; A18.024.875.500
Unique ID: D018548
RDF Unique Identifier: http://id.nlm.nih.gov/mesh/D018548
Annotation: coordinate with specific plant
Scope Note: A part of the embryo in a seed plant. The number of cotyledons is an important feature in classifying plants. In seeds without an endosperm, they store food which is used in germination. In some plants, they emerge above the soil surface and become the first photosynthetic leaves. (From Concise Dictionary of Biology, 1990)
Entry Term(s): Coleoptile; Coleoptiles; Cotyledons; Seed Leaf; Seed Leaves
Previous Indexing: Plants (1966-1994)
Public MeSH Note: 95
History Note: 95
Date Established: 1995/01/01
Date of Entry: 1994/06/07
Revision Date: 2010/06/25

Allowable Qualifiers: adverse effects (AE)

anatomy & histology (AH)

chemistry (CH)

classification (CL)

cytology (CY)

drug effects (DE)

embryology (EM)

enzymology (EN)

genetics (GE)

growth & development (GD)

immunology (IM)

metabolism (ME)

microbiology (MI)

parasitology (PS)

physiology (PH)

poisoning (PO)

radiation effects (RE)

toxicity (TO)

ultrastructure (UL)

virology (VI)

Concept UI: M0027811
Scope Note: A part of the embryo in a seed plant. The number of cotyledons is an important feature in classifying plants. In seeds without an endosperm, they store food which is used in germination. In some plants, they emerge above the soil surface and become the first photosynthetic leaves. (From Concise Dictionary of Biology, 1990)
Terms: Cotyledon Preferred Term
Term UI T055214
Date01/01/1999
LexicalTag NON
ThesaurusID NLM (1995); Seed Leaf
Term UI T055216
Date12/02/1993
LexicalTag NON
ThesaurusID NLM (1995); Seed Leaves
Term UI T055215
Date01/14/1994
LexicalTag NON
ThesaurusID NLM (1995); Cotyledons
Term UI T055213
Date01/14/1994
LexicalTag NON
ThesaurusID NLM (1995)

Cotyledon MeSH Descriptor Data 2024