Zygotic or suspensor polyembryony, Biology

Assignment Help:

Zygotic or Suspensor Polyembryony

Cleavage of the apical cells of the globular or filamentous proembryo produced by the zygote may result in two or more embryos in a seed. This mode of polyembryony is also common among the orchids. Figure shows a group of cells produced from the zygote in Eulophia epidendraea which have developed into three distinct proembryos. In Figure an embryo is seen budding from a globular proembryo. In Zygophyllum fabago and in several members of the Acanthaceae buds or new embryos arise from the uniseriate suspensor of the young proembryo. The multiple embryos that arise from proembryonal or suspensor cells are diploid.

2461_Zygotic or Suspensor Polyembryony.png

Figure: Zygotic or Suspensor polyembryony. A. Zygote has produced a pup of cells three of which have divided to form independent embryos. B. Budding of an embryo from a globular proembryo C. Proembryo with embryonal bud arising from uniseriate suspensor.


Related Discussions:- Zygotic or suspensor polyembryony

Availability of adp, Availability of ADP When  the ADP  levels increase...

Availability of ADP When  the ADP  levels increase due to hydrolysis ofATP  in various biosynthetic reactions,  the  rate of reaction to generate ATP  is accelerated and this i

Explain systematic - modern trends in animal taxonomy, Explain Systematic -...

Explain Systematic - Modern Trends in Animal Taxonomy Systematic is defined as the study of relationship among organisms which means reconstruction of phylogenies. It is that b

Explain pancreatitis, Explain Pancreatitis Pancreatitis :- Inflammati...

Explain Pancreatitis Pancreatitis :- Inflammation of the pancreas.

What are mutagenic agents, What are mutagenic agents? The Mutagenic age...

What are mutagenic agents? The Mutagenic agents, or mutagens, are physical, chemical or biological factors that can cause alteration in DNA molecules. Instances of believed

Mycotoxicosis, M yc ot o xi c osi s There are several types of m...

M yc ot o xi c osi s There are several types of mycotoxins (toxins produced by the fungi) e.g. aflatoxin, ochratoxin etc. Many species of fungi produce them but Aspergi

Define left posterior hemiblock, Q. Define Left Posterior Hemiblock? Bo...

Q. Define Left Posterior Hemiblock? Bobbna and associated reported four cases in which they proposed that the left posterior hemi block was initiated by exercise. In their pa

Amoeboid tapetum - tapetum, Amoeboid Tapetum - Tapetum It is also know...

Amoeboid Tapetum - Tapetum It is also known as invasive or periplus modial tapetum. This type of tapetum is more prevalent in the monocotyledons (Arum) than in the dicotyledon

Diet of a msud patient, The diet of a MSUD patient (child) should therefore...

The diet of a MSUD patient (child) should therefore involve: • Measured quantities of natural protein or leucine from foods. • A BCAA free protein, vitamin and mineral supp

Is fecundation in amphibians internal or external, Q. Is fecundation in amp...

Q. Is fecundation in amphibians internal or external? In this aspect are amphibians evolutionarily proximal to fishes or to reptiles? In the majority of the amphibian species f

Amphioxus, elementatr cannal and feeding mechenism

elementatr cannal and feeding mechenism

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