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

Why red-green colour blindness is x-linked recessive, Red-green colour blin...

Red-green colour blindness is X-linked recessive. A woman with normal colour vision has a father who is red-green colour-blind. The woman has four sons, none of whom are colour-bli

Chorea, It is found in around 20 per cent cases of ARF and it is a late man...

It is found in around 20 per cent cases of ARF and it is a late manifestation occurring even 3 months after GAS pharyngeal infection. Chorea is triggered by emotional disturbances

How walking benefits for the health, Walking In the process of walking ...

Walking In the process of walking the motion of the two legs is coordinated so that one foot or the other is always in contact with ground. Walking is the best form of exercise

Define advantages of using yeast as a source of protein, Define Advantages ...

Define Advantages of using Yeast as a source of Protein? 1. Large size, hence separation from the culture medium is easy. 2. As the pH of the growth is towards acidic side,

Vaccine against tuberculosis, Q. Is there vaccine against tuberculosis? ...

Q. Is there vaccine against tuberculosis? The vaccine against the tuberculosis is called as BCG (bacillus Calmette-Guérin). BCG is not used in a few countries where tuberculosi

Explain hepatitis a and b, Hepatitis A/B  A combination vaccine contain...

Hepatitis A/B  A combination vaccine containing the same antigenic components as  Engerix-B and pediatric  Havrix (Twinrix - GlaxoSmithKline) is available for patients >18 year

Heart in amphibians, Amphibia n - 3 chambered heart 2 auricles and ...

Amphibia n - 3 chambered heart 2 auricles and 1 ventricle. Sinus venosus and truncus arteriosus (its main part is pylengium) present. Incomplete double circulation prese

Explain the indications for neuropsychological screening, Explain the Indic...

Explain the Indications for neuropsychological screening Nature of referral question warrants it. Situational explanation for changes in emotions or cognitive functioni

Define the term functional foods, Define the term Functional Foods? The...

Define the term Functional Foods? The term 'functional food' was born in Japan. Functional foods are actually products formulated with naturally occurring chemicals or a combin

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