epicotyl


Also found in: Dictionary, Encyclopedia, Wikipedia.

epicotyl

the axis (or stem) of the shoot in a young germinating seedling, located above the COTYLEDON. See GERMINATION and Fig. 171 .
Mentioned in ?
References in periodicals archive ?
Seedlings (Figure 1A and C) are phanerocotylar and epigeal, with axial root, collet visible for presenting slight constriction, hypocotyl long, cylindrical and green, and epicotyl relatively short, cylindrical, green, hairy, with scale like leaves.
After three weeks, the seedlings were excised and separated into two portions: hypocotyl segment including the cotyledonary nodes and epicotyl segment with the apex.
Seedlings obtained from cytokinin treatments (24 mg L-1 BA) were stronger with thick hypocotyls, reduced epicotyls and primary roots with few or no lateral root formation.
Shoot regeneration of lentil has been previously reported from meristem tips, shoot tips and shoot meristems (Bajaj and Dhanju, 1979; Williams and McHughen, 1986; Singh and Raghuvanshi, 1989; Polanco and Ruiz, 1997), epicotyl (Williams and McHughen, 1986), embryonic axes (Saxena and King, 1987), first nodes and bractlets of immature seeds (Polanco et al.
2 A, C), surrounding completely the reduced epicotyl.
Data were collected on fresh weight (FW, g) of leaf blade (LFW), and on FW and length (L, cm) of the epicotyl (EL and EFW), hypocotyl (HL and HFW), first leaf petiole (FL and FFW), trifoliate leaf petiole (TL and TFW) and root (RL and RFW).
Daylength and photon flux density influence the growth regulator effects on morphogenesis in epicotyl segments of Troyer citrange.
In hypogeal emergence, the cotyledons remain beneath the soil surface and the epicotyl emerges from the soil.
The growing tip (apex) of the epicotyl is usually referred to as the plumule.
This exercise is introduced with a description of seedling morphology, including root hairs, cotyledons, hypocotyl, epicotyl and plumule.
Soybean BRU1 encodes a functional xyloglucan endotransglycosylase that is highly expressed in inner epicotyl tissues during brassinosteroid-promoted elongation.