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

Development of ovule, Development of Ovule The ovule develops from a s...

Development of Ovule The ovule develops from a specialised region of the ovary - the placenta. Initially it appears as a small mound on the placenta, and is composed of homoge

What is atrial septal defect, What is Atrial Septal Defect ? Fig...

What is Atrial Septal Defect ? Figure: Anatomical location of Am Indication for Surgery :  The presence of an ASD or PAPVC (Partial Anomalous Pulmonary Venous Conn

Explain about conjugated proteins, Conjugated Proteins Conjugated prote...

Conjugated Proteins Conjugated proteins are composed of easy proteins combined with a non- proteinous substance.  The non-proteinous substance is known as prosthetic group o

What do you mean by the coelom, Q. What is the coelom? To which structures ...

Q. What is the coelom? To which structures do coeloms give birth? Are all animals coelomate? Coeloms are cavities delimited by mesoderm and Coeloms originate the cavities where

What is glucose tolerance test, Q. What is Glucose Tolerance Test? Gluc...

Q. What is Glucose Tolerance Test? Glucose Tolerance Test (GTT) is used for diagnosis of diabetes mellitus. In this test, blood sugar levels are measured after giving glucose

Glucocorticoid response element, GRE  stands for the Glucocorticoid Respons...

GRE  stands for the Glucocorticoid Response Element: The binding site in a promoter to which the activated glucocorticoid receptor can be bind. The glucocorticoid receptor is signi

What is catabolism, Q. what is Catabolism? Catabolism is a process of b...

Q. what is Catabolism? Catabolism is a process of breaking down large or complex molecules of food components into smaller components. These supply energy to the cell in a form

Proteins of the endoplasmic reticulum, The RER have various proteins which ...

The RER have various proteins which have the role of assisting nascent proteins to fold rightly into their native conformation. Some of these are called as chaperones. RER-resident

Earthquake energy, Large Quantity of energy is released during an earthquak...

Large Quantity of energy is released during an earthquake with a combination of radiated elastic strain seismic waves frictional, heating of the fault surface and cracking of the r

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