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

Termination and follow-up in diabetes mellitus, Q. Termination and Follow-u...

Q. Termination and Follow-up in diabetes mellitus? After plan is implemented, you have to assess the progress. Slowly start winding up the contact with the client and the famil

Leishmaniasis, Leishmaniasis Leishmaniasis is a group of disease cause...

Leishmaniasis Leishmaniasis is a group of disease caused by protozoa of the group Leishmania, and are transmitted to man by the bite of female sandfly (Phlebotomus). Three typ

Mitosis / Meiosis, Why must our cells duplicate the DNA molecules before t...

Why must our cells duplicate the DNA molecules before they divide in Mitosis? Why do chromosomes condense by wrapping around the histone protiens durning the cell cycle?

Define essentiality of vitamins for growth of micro-organism, Define Essent...

Define Essentiality of Vitamins for Growth of Micro-Organism Vitamins are also essential in small amounts for cellular activities and growth. These are also the coenzymes for a

Water stress - responses of plants to stress, Water Stress - Responses of P...

Water Stress - Responses of Plants to Stress Water stress in a plant can result from drought, excess salinity in the soil and very low or high temperatures. It has been found

Determine the importance of calcium in soils, Determine the importance of C...

Determine the importance of Calcium in soils Calcium in soils is usually abundant except in acid soils, which occur in humid areas due to excessive leaching. Deficiency of calc

Nutrition, Nutrition As we have said earlier all animals are heterotro...

Nutrition As we have said earlier all animals are heterotrophs and require food from the environment. What is this food made up of? If the food of a number of different animal

What is placebo and nocebo, Problem 1: What is Placebo and Nocebo? Desc...

Problem 1: What is Placebo and Nocebo? Describe the significance of Placebo in clinical trials. Definition of placebo and Nocebo Significance of Placebo in clinical t

Show protective structures of the central nervous system, Q. What are the p...

Q. What are the protective structures of the central nervous system present in vertebrates? In vertebrates the brain and the spinal cord are protected by membranes, the meninge

Signify the term - trachea, Signify the term - Trachea Part of the resp...

Signify the term - Trachea Part of the respiratory system in insects, vertebrates and some spiders. In invertebrates it comprise tubules carrying air directly from outside to t

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