Caruncle - seed appendages, Biology

Assignment Help:

Caruncle - Seed Appendages

This is a white, collar-like structure borne on the micropylar end of the seed in many members of the Euphorbiaceae, such as castor, Ricinus communis. The soft outgrowth capping the hard seed is formed by proliferation of the cells at the tip of the outer integument. It is rich in starch and sugars. The violent opening of the fruit (this is termed gun-shot mechanism) causes seeds to be thrown away a few feet. It is believed that ants consume the caruncle and in the process carry the seed further away. The caruncle is also considered to be hygroscopic and it may be helpful in absorbing moisture for seed germination.


Related Discussions:- Caruncle - seed appendages

#classification of parasitic protozoa.., most recent classification of para...

most recent classification of parasitic protozoa with its general characters

Explain the oligosaccharides (dp: 3-9) - carbohydrates, Explain the Oligosa...

Explain the Oligosaccharides (DP: 3-9) - carbohydrates? Oligosaccharides consists of short chains of monosaccharide units joined by covalent bonds. The glycosidic bond may be α

Llustrate the role of each area in the evolution of the hebe, llustrate the...

llustrate the role of each area in the evolution of the Hebe Uses appropriate examples from the Hebe data to illustrate the role of each area/concept in the evolution of the He

Prevalence of coronaru heart diseases, Q. Prevalence of coronaru heart dise...

Q. Prevalence of coronaru heart diseases? Incidence of obesity, diabetes and CHD is increasing in India in almost all age groups. At present, obesity, which is a major risk fa

Agro industrial-phosphorus, Phosphorus Phosphorus has been known as “m...

Phosphorus Phosphorus has been known as “master mineral” because it is involved in most metabolic processes. Phosphorus, which is stored in bones and teeth, is often discussed

Define can or receptacle and labeling and packing, Define Can or receptacle...

Define Can or receptacle and Labeling and packing? Can/receptacle - This may be performed manually or by using sophisticated filling machinery. The ratio of liquid to solid in

What is market in management term, What is market in management term? ...

What is market in management term? A market: There is Buyers and sellers for a good or a service come within contact for the function of normally exchange, for money. Lik

Describe splitting of in second heart, Describe Splitting of S 2 ? On...

Describe Splitting of S 2 ? On inspiration: The split widens as both A, and Pi move away from each other with p, moving out more. The negative intrathoracic pressure during

Define x-ray chest and coronary angiography, Q. Define X-Ray Chest and Coro...

Q. Define X-Ray Chest and Coronary Angiography? X-Ray Chest It shows cardiomegaly with left ventricle (LV) and left atrium (LA) enlargement. There may be signs of pulmona

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