Zygotic or suspensor polyembryony, Biology

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.

Posted Date: 1/23/2013 7:45:30 AM | Location : United States







Related Discussions:- Zygotic or suspensor polyembryony, Assignment Help, Ask Question on Zygotic or suspensor polyembryony, Get Answer, Expert's Help, Zygotic or suspensor polyembryony Discussions

Write discussion on Zygotic or suspensor polyembryony
Your posts are moderated
Related Questions
Light Stress in Chloroplasts As mentioned earlier, very high light intensity can inhibit photosynthesis due to accumulation of excess of excitation energy. A portion of this r

Define the first step to envision the pattern of deformation. The first step in the analysis is to envision the pattern of deformation that would accompany such a failure. In t


Heart Heart is a cone shaped muscular structure situated between two lungs in the thoracic cavity. It is covered by a sac like structure known as pericardium which has two lay

PHYLUM  MOLLUSCA Definition  and Introduction Basically bilateral and protostomial eucoelomate  eumetazoans  whose soft body (L. Millis  or molluscum= soft) is unsegmente

Workgroup A Workgroup is a group of people who are working together on the same project. The members of such a group are usually (not always) located in close physical proximi

what is a homologous chromosome

Q. Using examples of invertebrate nervous systems how can the process of evolutionary cephalization be described? Considering the example of invertebrates it is observed that e

State the term - Psychophysiology This refers to the study of psychological theories using physiological measures. In other words, psycho-physiologists normally try to understa

Q. Describe the rationale behind sterilization? Rationale for sterilization: Source of potential infection that exists in dental office include hands, saliva, nasal secretion,