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

Formation of the amino acids sequences of a protein, Q. How do nucleotides ...

Q. How do nucleotides of mRNA chains encode information for the formation of the amino acids sequences of a protein? There are only four types of nitrogen- containing bases tha

What would be the probability of obtaining result, A plant grown from one o...

A plant grown from one of Mendel's yellow peas is selfed. Five progeny peas are obtained from this self and they are all yellow. If the original selfed plant had been homozygous, w

Noteworthy features of the nervous system of arthropods, Q. What are the no...

Q. What are the noteworthy features of the nervous system of arthropods? In arthropods the nervous system has more sophisticated sensory receptors with well-advanced cephalizat

Classification of freshwater ecosystems, Classification of Freshwater Ecosy...

Classification of Freshwater Ecosystems Fresh water ecosystems depend on the terrestrial ecosystems for large quantities of organic and inorganic matter which are constantly a

What is cartilage explain briefly, What is Cartilage explain briefly? S...

What is Cartilage explain briefly? Some bones, such as the bones in the skull, develop directly from membranous connective tissue, but in human fetal development, most of the s

excreation, ARE BONY FISHES AMMONOTELIC?

ARE BONY FISHES AMMONOTELIC?!

Categories of phloem transport, Categories of Phloem Transport Essenti...

Categories of Phloem Transport Essentially, the phloem transport can be subdivided into the following: The "loading" of the organic nutrients from the mesophyll c

Explain weight gain during pregnancy and foetal outcome, Explain Weight Gai...

Explain Weight Gain during Pregnancy and Foetal Outcome? Weight gain and birth weight are indisputably related to each other. Several studies have shown a higher occurrence of

Johne’s disease, Johne’s disease The disease, discovered by Heinrich A....

Johne’s disease The disease, discovered by Heinrich A. Johne, a German bacteriologist and veterinarian, in 1905, is caused by a bacterium named Mycobacterium avium subspecies p

Determine the binocular movements, Determine the Binocular movements Bi...

Determine the Binocular movements Binocular movements are those when the relative movements of both eyes are studied together in the directions, e.g., right or left. There are

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