(part of plant embryo)

См. также в других словарях:

• Plant embryogenesis — is the process that produces a plant embryo from a fertilised ovule by asymmetric cell division and the differentiation of undifferentiated cells into tissues and organs. It occurs during seed development, when the single celled zygote undergoes… …   Wikipedia

• Plant morphology — (or phytomorphology) is the general term for the study of the morphology (physical form and external structure) of plants. [Raven, P. H., R. F. Evert, S. E. Eichhorn. Biology of Plants , 7th ed., page 9. (New York: W. H. Freeman, 2005). ISBN 0… …   Wikipedia

• plant development — Introduction       a multiphasic process in which two distinct forms succeed each other in alternating generations. One form, created by the union of sexual cells (gametes (gamete)), contains two sets of similar chromosomes (diploid). At sexual… …   Universalium

• Embryo — An embryo (from Greek: Polytonic|ἔμβρυον , plural Polytonic|ἔμβρυα , lit. that which grows, from en in + bryein to swell, be full ) is a multicellular diploid eukaryote in its earliest stage of development, from the time of first cell division… …   Wikipedia

• Plant hormone — Plant hormones (also known as phytohormones) are chemicals that regulate plant growth. Plant hormones are signal molecules produced within the plant, and occur in extremely low concentrations. Hormones regulate cellular processes in targeted… …   Wikipedia

• Plant virus — Plant viruses are viruses affecting plants.Plant viruses, like all other viruses, are obligate intracellular parasites that do not have the molecular machinery to replicate without the host. The plant viruses are defined as viruses pathogenic to… …   Wikipedia

• Plant tissue culture — is a practice used to propagate plants under sterile conditions, often to produce clones of a plant. Different techniques in plant tissue culture may offer certain advantages over traditional methods of propagation, including:* The production of… …   Wikipedia

• embryo — ► NOUN (pl. embryos) 1) an unborn or unhatched offspring in the process of development, especially an unborn human in the first eight weeks from conception. Compare with FETUS(Cf. ↑fetus). 2) the part of a seed which develops into a new plant. ●… …   English terms dictionary

• plant — plantable, adj. plantless, adj. plantlike, adj. /plant, plahnt/, n. 1. any member of the kingdom Plantae, comprising multicellular organisms that typically produce their own food from inorganic matter by the process of photosynthesis and that… …   Universalium

• Plant — For other uses, see Plant (disambiguation). Plants Temporal range: Early Cambrian to recent, but see text, 520–0 Ma …   Wikipedia

• embryo — /em bree oh /, n., pl. embryos, adj. n. 1. the young of a viviparous animal, esp. of a mammal, in the early stages of development within the womb, in humans up to the end of the second month. Cf. fetus. 2. Bot. the rudimentary plant usually… …   Universalium