Glossary of Plant Anatomy

Enter term:

ABCDEFGHIJKLMNOPQRSTUVWXYZ
obturator [PO:0020029; plant anatomy term ]
An outgrowth of the funicle, that forms a bridge between the micropyle and other tissues.
More

oil gland [PO:0005669; plant anatomy term ]
A gland or a cavity lined with cells that secrete oils.
More

ordinary companion cell [PO:0025459; plant anatomy term ]
A companion cell (PO:0000400) that lacks cell wall invaginations and has few or no plasmodesmata connecting it to adjacent mesophyll cells.
More

organ lamina [PO:0025513; plant anatomy term ]
A lamina (PO:0025060) that is part of a plant organ (PO:0009008).
More

organ margin [PO:0025005; plant anatomy term ]
A cardinal organ part that is the edge of an organ and the area immediately internally adjacent to it.
More

organogenic callus [PO:0006090; plant anatomy term ]
A cultured plant callus that is capable of forming plant organs.
More

outer integument [PO:0020023; plant anatomy term ]
One of the two layers of tissue that usually cover the ovule, contiguous to the inner integument and usually involved in forming the micropyle at the apex.
More

outer integument epidermis [PO:0006045; plant anatomy term ]
The epidermis of the outer integument in an ovule.
More

outer vascular cambium [PO:0004522; plant anatomy term ]
Cambium at the outer margin of the xylem cylinder.
More

ovary epidermis [PO:0006063; plant anatomy term ]
A portion of epidermis that is part of an ovary.
More

ovary locule [PO:0025266; plant anatomy term ]
A locule that is a cavity in an ovary.
More

ovary placenta [PO:0020001; plant anatomy term ]
A portion of placenta tissue that is part of an ovary and to which ovules are attached.
More

ovary replum [PO:0025272; plant anatomy term ]
A portion of ovary placenta tissue that divides an ovary into two or more chambers and develops from contact of the placental tissue from opposite sides of the ovary early in gynoecium development.
More

ovary septum [PO:0025262; plant anatomy term ]
A septum that divides a multilocular ovary.
More

ovary wall [PO:0005022; plant anatomy term ]
A wall of an ovary that is composed of abaxial (outer) and adaxial (inner) epidermis and a middle layer, composed of mesophyll cells and a distinct subepidermal adaxial cell layer (as found in Arabidopsis).
More

ovule primordium [PO:0000018; plant anatomy term ]
A floral structure primordium (PO:0025477) that is committed to the development of an ovule (PO:0020003).
More

ovuliferous scale ovule [PO:0025491; plant anatomy term ]
A plant ovule (PO:0020006) that is part of an ovuliferous scale (add).
More