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 the respective functions of homologous chromosomes, What are the r...

What are the respective functions of the separation of homologous chromosomes and of the separation of identical chromatids in meiosis? The separation of homologous chromosomes

Flightless birds, #Most of the world''s flightless birds are either nocturn...

#Most of the world''s flightless birds are either nocturnal and secretive (e.g. the kagu) or large, swift and well-armed (the ostrich). The exceptions are found primarily on island

What are those phyla, Q Beings from four phyla of the animal kingdom "breat...

Q Beings from four phyla of the animal kingdom "breath" (do gas exchange) by diffusion. Which are those phyla? How is this type of respiration associated to features present in tho

What is deoxynivalenol, Q. What is Deoxynivalenol? Deoxynivalenol (DON)...

Q. What is Deoxynivalenol? Deoxynivalenol (DON) is a far more common, but much less toxic, trichothecene and is produced by species such as F. graminearum and F. culmorum. LD

Feline calcivirus infection, Feline calcivirus infection This disease i...

Feline calcivirus infection This disease is caused by a virus under the family Caliciviridae. Its symptoms  include rhinitis, tracheitis and pneumonia. The animals are lethargi

How is the respiratory system of insects, Q. How is the respiratory system ...

Q. How is the respiratory system of insects with its independence between respiration and circulation related to the motor agility of some species of this arthropod class? Even

What are the main parts of ferns, What are the main parts of ferns? Fer...

What are the main parts of ferns? Ferns are constituted by small roots that come downwards from the rhizome (stem, often orizontalized). The fronds also arise from the rhizome.

Why to dilute this stock to give the desired concentration, You are working...

You are working on a protocol in lab that requires 10ml of a 5% saline solution for a particular step. All you have in your lab is a 20% saline stock solution. How can you dilute t

How can we check bp without stethoscope, How can we check BP without stetho...

How can we check BP without stethoscope In this case the procedure is same except you place your hand on radial pulse. You can read systolic pressure only by this method. -

Coadapted communities, From your studies in ecology, you must be aware that...

From your studies in ecology, you must be aware that most ecosystems are quite complex consisting of several habitats and that habitats in turn are composed of microhabitats. Each

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