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bean seed germinating


1. Botany A leaf of the embryo of a seed plant, which upon germination either remains in the seed or emerges, enlarges, and becomes green. Also called seed leaf.
2. Anatomy One of the lobules constituting the uterine side of the mammalian placenta, consisting mainly of a rounded mass of villi.

[Latin cotylēdōn, navelwort, from Greek kotulēdōn, from kotulē, hollow object.]

cot′y·le′don·ar′y (-ēd′n-ĕr′ē), cot′y·le′don·al (-ēd′n-əl), cot′y·le′do·nous (-ēd′n-əs) adj.
References in periodicals archive ?
After six days of culture, the cotyledonary nodes (included both cotyledons, an intact apical bud and 0.
Also (Groll et al, 2002) showed that the maximum number of somatic embryos from manihot esculenta differentiated from a proliferative nodular embryogenic callus on either half or full strength MS medium, and the greatest number of cotyledonary stage embryos were formed on full strength MS medium.
Cotyledonary (preferred) or intercotyledonary chorioallantoic tissue was obtained, chilled, and shipped cold to the National Institute for Animal health (Bangkok, Thailand) for analysis.
Photoautotrophic cultura of Coffea arabusta somatic embryos: development of a bioreactor for large-escale plantlet conversion form cotyledonary embryos.
These species exhibit central implantation and have placentae of the diffuse and cotyledonary types.
Therefore, there is no true hypocotyl unless the very short part of the radicle between the cotyledonary plate and the attachment of the 'coleorhiza' to the radicle (Fig.
On day 75 of pregnancy, placentomes from each ewe were fixed with Carnoy's solution by perfusion of the main vessel supplying the cotyledonary (COT; fetal) tissue.
1] was applied to the seedling stem at 2 cm below the first cotyledonary node with a 26-gauge needle.
Considering these information, the objective of this work was to describe the effect of silver nitrate and cobalt chloride on the frequency of adventitious shoot regeneration and number of shoots per explant of in vitro culture of Cotyledonary node of medium staple cotton cultivar Barac B-67.
germinatio remotiva tubulosa," in which the tubular cotyledonary sheath is open (e.
Samples of the maternal caruncular (CAR) and fetal cotyledonary (COT) portions of the placenta were snap frozen and later analyzed for vascular endothelial growth factor (VEGF), vascular endothelial growth factor receptor- 1 (VEGFR-1), vascular endothelial growth factor receptor-2 (VEGFR-2), angiopoietin-1 (ANG-1), angiopoietin-2 (ANG-2), receptor for both Ang-1 and Ang-2 Tie-2, fibroblast growth factor (FGF), endothelial nitric oxide synthase (eNOS), and soluble guanylate cyclase (sGC).