Terminology use in apical dominance, Biology

Terminology use in Apical Dominance

Here are a few terms that will be used in discussing apical dominance. A clear understanding of these terms is needed for understanding the intricate mechanisms of physiological control of branching.

Apical Dominance

The inhibition of growth of lateral buds by the presence of active shoot apex of either the main stem or branches is called apical dominance.

Lateral Buds

Buds which are present in the axils of leaf primordia which are similar to main shoot apex in structure but generally remain dormant.

Dormancy

Arrested condition of growth

Phytohormones

Specific chemical substances that are produced at one site in plants and travel to other areas (targets). At the target they regulate physiological responses.

Shoot Apex

The terminal tissue of main stem or of a branch. Very simple in structure consisting of just two different types of cells which are actively dividing to produce multiple number of cells which differentiate into various structures and tissues of the stem.

Root Apex

The terminal tissue of root consisting of actively dividing cells that differentiate into various tissues of root as the elongation of root takes place. A root apex does not generally give rise to other organs or structures.

Apical dominance can be recognized if we carefully observe the growth of plants. That the shoot apex is responsible for the inhibition of the growth of lateral buds can also be demonstrated "experimentally". You choose any actively growing plants in your courtyard and count the number of branches present immediately below the shoot apex. Take a fine blade and severe the shoot apex. Observe the growth pattern for a period of 10 or 15 days. Count the number of lateral branches sprouting below the cut.

Posted Date: 1/24/2013 3:05:17 AM | Location : United States







Related Discussions:- Terminology use in apical dominance, Assignment Help, Ask Question on Terminology use in apical dominance, Get Answer, Expert's Help, Terminology use in apical dominance Discussions

Write discussion on Terminology use in apical dominance
Your posts are moderated
Related Questions
Porcine rotavirus Piglet diarrhoea and mortality are gaining importance and the viral agent which is highly incriminated in such episodes is porcine rotavirus. The clinical featur

Heterochromatin: Compact, gene-poor areas of a genome, which are enriched in the simple sequence repeats. As it may be impossible to clone, heterochromatin is generally ignored wh

The  cytosolic  surface  of  the  erythrocyte   plasma  membrane  is  covered  through  a network of peripheral membrane proteins which make up the cytoskeleton in the figure. The

Class Gastropoda Body asymmetrical, depicts torsion or its effects; shell coiled in most, well developed head with radula, large flat foot, gills one or two or with pulmonary

Explain Risk Management Risk Management :  The  process  of weighing  policy  alternatives  to accept, minimize or reduce assessed risks and  to select and  implement approp

Q. What are the two main species of taenias that cause human diseases? The two chief species of taenias that cause disease in humans are Taenia solium, or the pork tapeworm, an

Problem 1: Briefly describe the different types of parenteral routes of drug administration. Definition of parenteral routes of administration. Show different types of

List er i o si s The disease is caused by Listeria monocytogenes - Gram positive small non spore- forming bacilli seen in soil, silage, sewage and feces of animals and b

What are the Luria's methods and theories Adhering to our theory that the Luria Nebraska bears little resemblance to Luria's methods and theories, there seems little point in i

Q. Phylogenetic systems of classification? As already pointed out 'earlier that in Phylogenetic system, the plants are classified according to their evolutionary relationships.