Endosperm with micropylar and chalazal haustoria, Biology

Assignment Help:

Endosperm with Micropylar and Chalazal Haustoria

Some plants develop haustoria from both micropylar and chalazal ends of endosperm. In Nemophila aggressive haustoria arise from micropylar and chalazal ends. The chalazal haustorium sometimes gives out a prominent lateral branch which grows towards the funiculus so as to come in direct contact with the starchy tissue of the placenta.

In Melampyrum lineare, the micropylar haustorium comprises a single cell with many tubular processes which enlarge considerably and invade the tissue of the integument and funiculus. The chalazal haustorium is short and confined to the nucellar tissue only. In Klugia notoniana the chalazal haustorium grows laterally and terminally, consuming the sub-epidermal cells of the integument. The micropylar haustorium starts functioning after the activity of- the chalazal haustorium declines.


Related Discussions:- Endosperm with micropylar and chalazal haustoria

Symmetry system characterized in echinoderms, Q. How are the nervous and th...

Q. How are the nervous and the symmetry system characterized in echinoderms? Adult echinoderms, along with cnidarians, are the animals that present radial symmetry that is thei

Explain the taxonomy of lamarck, Explain the taxonomy of Lamarck? Lamar...

Explain the taxonomy of Lamarck? Lamarck's taxonomy was mainly static in nature and his classification does not show its true value to the development of modern taxonomy. His m

Full form of hiv and aids, HIV (Human Immuno Deficiency Virus) Infection a...

HIV (Human Immuno Deficiency Virus) Infection and AIDS (Acquired Immune Deficiency Syndrome)

What is eukaryotic cells , What is Eukaryotic Cells ? Eukaryotic Cel...

What is Eukaryotic Cells ? Eukaryotic Cells :  Most cells of higher organisms, and many unicells, contain a nucleus. Organisms whose cells contain a nucleus are called euka

POPULATION, WHAT ARE THE CHARACTERISTICS OF POPULATION IN ANIMAL

WHAT ARE THE CHARACTERISTICS OF POPULATION IN ANIMAL

Flowering - development of plant, Flowering - Development of plant One...

Flowering - Development of plant One of the major changes that occur during the life cycle of a plant is the transition from vegetative stage to the flowering stage. In this t

ANIMAL TRANSPORT SYSTEM, WWHAT ARE THE ORGANS THAT ARE INVOLVDED IN THE TRA...

WWHAT ARE THE ORGANS THAT ARE INVOLVDED IN THE TRANSPORTTATION SYSTEM OF ANIMALS

Pineal gland, PINEAL GLAND (EPIPHYSIS CEREBRI) - It develops from th...

PINEAL GLAND (EPIPHYSIS CEREBRI) - It develops from the ectoderm of the embryo. The pineal gland is located between the cerebral hemispheres, where it protrudes from the

What is inharmonious ecological interaction, Q. What is inharmonious ecolog...

Q. What is inharmonious ecological interaction? The Inharmonious or negative ecological interaction is that in which at least one of the participating beings is harmed.

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