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 is digestion, What is digestion? Digestion is the breaking down of...

What is digestion? Digestion is the breaking down of larger organic molecules obtained from the diet, e.g. carbohydrates, fats, proteins, into smaller ones, as glucose, fatty a

Circulatory system - blood vessels, BLOO D VESSELS - Some vessles s...

BLOO D VESSELS - Some vessles supply blood to wall of large vessels these are vessel of vessels or vasa vasorum . Mainly artery and vein, 2 types of vessels present.

Water absorption in digestive system of mammals and bird, Q. Compared to ma...

Q. Compared to mammals do birds absorb more or less water in their digestive system? Why is this phenomenon an adaptation to flight? Bird feces are more liquid than mammal a fe

What is the significance of torsion, What is the significance of torsion? ...

What is the significance of torsion? An unusual twisting of the gastropod body which has left all members of class with an asymmetric body plan and a U-shaped alimentary tract,

What determines an individual''s work capacity, What determines an individu...

What determines an individual's Work Capacity or VO 2 Max? Both aerobic and anaerobic mechanisms determine an individual's performance capacity. VO 2 max is determined by the

Neurulation in amphibians, Neurulation in Amphibians The first step i...

Neurulation in Amphibians The first step in the neurulation process is the flattening and thickening of dorsal ectoderm to form neural plate. The plate of cells are different

Define arterial vessels - arterioles and arteries, Q. What are arterial ves...

Q. What are arterial vessels, arterioles and arteries? Arterial vessels are every blood vessel that carries blood from the heart to the tissues, arterioles and Arteries are art

Restraining, RESTRAINING: Several treatment alternatives exist  for  i...

RESTRAINING: Several treatment alternatives exist  for  intervention in assaultive behaviour. Medication, physical restraints and seclusion  rooms may be used  separately or

Soil texture and structure, SOIL TEXTURE AND STRUCTURE We have seen that ...

SOIL TEXTURE AND STRUCTURE We have seen that soils are predominantly composed of particles of various sizes derived from the disintegration or decomposition of parent rock materi

Define physiological effects on the git of prebiotics, Define Physiological...

Define Physiological effects on the GIT of prebiotics? Since prebiotics are fermented by the gut microflora, they may have physiological effects on the GIT such as: Cont

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