Ruminate endosperm - variants of endosperm, Biology

Assignment Help:

Ruminate Endosperm - Variants of Endosperm

In certain plants the surface of the mature cellular endosperm shows a high degree of irregularity and unevenness, giving a ruminated appearance (rumination means as if chewed). It is caused either by the activity of the seed coat or by the endosperm itself. Ruminate endosperm is found in about 32 families of Angiosperms.

On morphological basis, Periasamy (1962) distinguishes seven types: Annona, Passiflora, Myristica Spigelia, Verbascum and Coccoloba and Elytraria. In all these types except Elytraria irregularities occur in the growth of integuments which bring about the rumination of endosperm. In Elytraria during the development of seed, localized regions in the peripheral layers of cellular endosperm show active growth causing rumination.


Related Discussions:- Ruminate endosperm - variants of endosperm

Define the different causes of under nutrition, Define the different causes...

Define the different causes of under nutrition ? 1. Scales (Screening Tool): The basic biochemical and anthropometric parameters are used in this screening. 2. Recognizing th

Define the healing process - root canal treatment, Define the Healing Proce...

Define the Healing Process - Root Canal Treatment The course of healing varies and depends on: 1)  Initial size of the lesion: It takes longer for larger periradicular lesio

Determine the term -stolon, Determine the term -Stolon. In a number of ...

Determine the term -Stolon. In a number of colonial cnidarians, ascidians, and lophophorans, a cord of tissue connects different zooids of colony to each other. Buds on stolon

Excellent identification hypothesis for a plant tissue, What is the most ex...

What is the most excellent identification hypothesis for a plant tissue seen under the microscope having most cells undergoing cell division? The most excellent hypothesis is t

Define meat as a rich source of protein, Define Meat as a Rich Source of Pr...

Define Meat as a Rich Source of Protein? Skeletal or striated muscles are used for food purposes. Flesh of cattle, sheep and swine comprise most of the meat contents. Edible me

Define voriconazole, Define Voriconazole It is metabolized in the liver...

Define Voriconazole It is metabolized in the liver by CYP2C19, CYP2C9 and CYP3A4. CYP2C19 is genetically variant (about 3% to 5% of Caucasians and African-Americans and about 1

Define end and the beginning of the first interphase period, Q. What are th...

Q. What are the events that mark the end and the beginning of the first interphase period? What happens inside the cell in this period? The initial interphase period is the G1.

Primary succession - community change, Primary Succession - Community Chang...

Primary Succession - Community Change In primary succession on a terrestrial site the new site is first colonised by a few hardy pioneer species that are often microbes, liche

What is the characteristic of cardiac muscle, What are the characteristics ...

What are the characteristics of cardiac muscle that allow it to be highly resistant to fatifue?

Requirements of various nutrients in constipation, Q. Requirements of vario...

Q. Requirements of various nutrients in constipation? The requirements of various nutrients are not altered in constipation. It is essentially a normal balanced diet (normal RD

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