Somatic embryogenesis, Biology

Assignment Help:

Somatic Embryogenesis

The process of embryo development is called embryogenesis. It is not the monopoly of the egg to form an embryo. Any cell of the female gametophyte (Embryo sac) or even of the sporophytic tissues around the embryo sac may give rise to an embryo. Thus we can say that 'The phenomenon of embryogenesis is not necessarily confined to the reproductive cycle". In this subsection we will discuss - some examples of "embryos formed in culture", also referred to as "somatic - embryos".

The first observation of somatic embryos was made m Daucus Carota. Other plants in which the phenomenon has been studied in some detail are Ranunculus sceleratus, citrus and coffea spp. In Ranunculus sceleratus somatic as well as various floral tissues, including anthers proliferated to form callus which, after limited unorganized growth differentiated several embryos. These embryos germinated in situ and a fresh crop of embryos appeared on the surface of the seedling. The embryos were derived from individual epidermal cells of the hypocotyl.


Related Discussions:- Somatic embryogenesis

What are anteromedial aspects of temporal lobes, Q. What are anteromedial a...

Q. What are anteromedial aspects of temporal lobes? Olfactory Cortex - found in anteromedial aspects of temporal lobes receive sensory information directly from the olfactory n

Open water zone - lake ecosystem, Open Water Zone - Lake Ecosystem Thi...

Open Water Zone - Lake Ecosystem This extends beyond the littoral zone and is too deep for light to penetrate till the bottom and for rooted plants to grow. This zone is divid

Explain the scanning electron microscope, Explain the Scanning Electron Mic...

Explain the Scanning Electron Microscope It can be used to observe intact cells or cell components directly. Then sections are not necessary. It is used for visualizing surface

Enumerate the term - pathognomic sign, Enumerate the term - pathognomic sig...

Enumerate the term - pathognomic sign A comprehensive assessment ideally uses all four approaches. Some forms of specialised assessment rely heavily on pathognomic signs, behav

Define importance of nutrient and drug interaction, Define Importance of Nu...

Define Importance of Nutrient and Drug Interaction? Certain foods, beverages, alcohol, caffeine, and even cigarettes can interact with medicines. This may make them less effect

Explain about the enteral feeding in elderly, Explain about the Enteral fee...

Explain about the Enteral feeding in elderly? Enteral, as you may already be aware, is defined as provision of nutrition support through the GI tract or by accessing the gut. Th

Explain xanthan gum, Explain Xanthan Gum Xanthan gum is a microbial pol...

Explain Xanthan Gum Xanthan gum is a microbial polymer prepared commercially in pure culture fermentation from Xanthomonas campestris. This polysaccharide was given the generic

Germ line gene therapy, Germ line gene therapy - This approach either targ...

Germ line gene therapy - This approach either targets to correct the totipotent cells within human conceptus or stimulate the genetic modifications within reproductive cells that

Protozoa., state 5 advantages and disadvantages of protozoa

state 5 advantages and disadvantages of protozoa

What is drugs, What is drugs? Intravenous access must be established. A...

What is drugs? Intravenous access must be established. Although administration of drugs through a central vein is ideal in a low cardiac output situation, it is rarely possible

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd