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

Aschelminthes, in what part of the human body aschelminthes found?

in what part of the human body aschelminthes found?

Determine biologically compatibility of implant materials, Biologically com...

Biologically compatibility od implant materials An ideal implant material will elicit mainly physiological reactions within the surrounding tissues (bone, connective tissue and

Definition of osseointegration in microscopic biophysical, Q. Definition of...

Q. Definition of Osseointegration in microscopic biophysical? Osseointegration implies that at light microscopic and electron microscopic levels, the identifiable components of

Proteins, Proteins Proteins are continually synthesised in the cells a...

Proteins Proteins are continually synthesised in the cells as they are the principal component required for growth. Proteins are composed of amino acids which are derived larg

Explain the role of bones in human biology, Explain the role of Bones in hu...

Explain the role of Bones in human biology? Bone is covered by a tough outer membrane called the periosteum. The periosteum contains systems of capillaries that supply the bone

Food and diet, state one benefit of including vegetable fibre in the diet

state one benefit of including vegetable fibre in the diet

Define food intake during polar expeditions, Define Food Intake during Pola...

Define Food Intake during Polar Expeditions? Observations made by Easty (1967) at Halley Bay, the British Antarctic survey base during 1961-62 expeditions indicate mean calorie

Explain trypsin, Trypsin Trypsin is secreted in the inactive  form  try...

Trypsin Trypsin is secreted in the inactive  form  trypsinor  -  which is converted into the active form  trypsin by  the enzyme enterokinase secrated by  the duodenal mucosa.

What is the prevention of perinatal transmission, Prevention of perinatal t...

Prevention of perinatal transmission  Zidovudine alone, started at 14-34 weeks of gestation and continued in the infant for the first 6 weeks of life, reduced HIV transmission

Candidiasis (moniliasis or thrush), C a n d i d i a s i s (monili...

C a n d i d i a s i s (moniliasis or thrush) C and i d a albicans , the causative fungus of the disease, is widespread in the environment and is usually present

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