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

Empyema, Empyema: Empyema is accumulation of  thick pus in the pleural...

Empyema: Empyema is accumulation of  thick pus in the pleural cavity. Primary infection of pleura does not arise so the pathology may either be in chest wall, mediastinum or t

Microbiology, Applications of microbiology in different fields

Applications of microbiology in different fields

Define the viscosity of protein, Define the Viscosity of Protein? Visco...

Define the Viscosity of Protein? Viscosity reflects resistance to flow. The main single factor influencing the viscosity behavior of protein fluids is the apparent diameter of

Define protein stabilized food emulsions, Define Protein Stabilized Food Em...

Define Protein Stabilized Food Emulsions? Many food products are emulsions (eg. milk cream, ice creams, cream, butter etc.) and protein constituents often play a major role in

Define requirements of vitamin a for infants, Define requirements of Vitami...

Define requirements of Vitamin A for infants? As for vitamin A deficiency, requirement of vitamin A is the most easy to meet as it is abundantly present in green and yellow veg

Quantitative or analytical method for estimation of nitrogen, Define Quanti...

Define Quantitative or Analytical Method for Estimation of Nitrogen and Protein? You may recall reading earlier that proteins contain nitrogen along with carbon, hydrogen and s

Types of eggs, TYPES OF EGGS Different species of animal has different ...

TYPES OF EGGS Different species of animal has different type of eggs. They are classified on the following basis - 1 .         ON THE BASIS OF AMOUNT OF YOLK On the ba

What is concepts of chromosome, Q. What is the relation between the concept...

Q. What is the relation between the concepts of chromosome and chromatin? Are heterochromatin and euchromatin part of chromosomes? Every filament of chromatin is a complete DNA

Describe assist control ventilation, Describe Assist Control Ventilation (A...

Describe Assist Control Ventilation (ACV) The machine delivers a set tidal volume at the set rate; besides, each time the patient breathes on his own, a machine breath is init

Show imbalances of basal nuclei, Q. Show Imbalances of basal nuclei? BA...

Q. Show Imbalances of basal nuclei? BASAL NUCLEI - Gray matter "islands" located deep within cerebral white matter. These nuclei process a variety of descending motor informat

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