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

Define main gastric digestive enzyme, Q. Besides being fundamental for the ...

Q. Besides being fundamental for the activation of the main gastric digestive enzyme how does HCl also directly participate in digestion? With its corrosive effect HCl also hel

What are trophic levels, What are trophic levels? How many trophic levels c...

What are trophic levels? How many trophic levels can a food chain have? The Trophic levels correspond to positions on a food chain. thus producers always belong to the first tr

Morulation, MORUL A TIO N - 32 celled embryo is solid looks like lit...

MORUL A TIO N - 32 celled embryo is solid looks like little mulberry known as morula. It reaches uterus on fourth day. Still it is covered by fertilization membrane mainl

Ecological adaptations in animals to desert environment, Ecological adaptat...

Ecological adaptations in animals to desert environment In response to scarcity of water, animats adcipt vario6s strategies to conserve or prevent loss of water. Most of the de

What is forebrain, Q. What is Forebrain? Forebrain: Found in the area o...

Q. What is Forebrain? Forebrain: Found in the area of the forehead, this part of the brain is concerned with all the emotions, planning, organising, reasoning, memory, movement

Explain cellular regeneration, Q. What is the cellular regeneration? How is...

Q. What is the cellular regeneration? How is the mitosis related to this process? Some tissues are capable to regenerate when injured. The liver, for instance, regenerates when

Extractive use of biodiversity, Q. Extractive use of biodiversity? This...

Q. Extractive use of biodiversity? This includes direct use such as harvesting of wild plant species for use as food, fuel, fodder, fibre, shelter or medicine and hunting anima

Mycoplasmosi, MYCOPLASMOSIS Mycoplasma organisms are the smallest free li...

MYCOPLASMOSIS Mycoplasma organisms are the smallest free living, lack of cell-wall and bounded by a triple layer of plasma membrane. The organisms are pleuomorphic in shape, viz.

What is isq, What is ISQ In resonance frequency analysis implant stabil...

What is ISQ In resonance frequency analysis implant stability quotient (ISQ) is use to quantify the frequency measurement of implants within a range between 3500 and 8500 HZ. I

Explain the advantage of internal fertilization, For animals, what is the a...

For animals, what is the advantage of internal fertilization and what type of species utilize it?

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