Flower - plant growth substances, Biology

Assignment Help:

Flower - Plant Growth Substances

Floral initiation is a dramatic event involving a total changeover of the character and developmental pattern of the meristem. The stimulus can be internal i.e. age of the plant, endogenous hormones etc. and external factors like light (photoperiod) and temperature (vernalisation) as well.

External stimuli are perceived by a pigment called phytochrome which in turn triggers a series of steps including gene activation, new enzyme synthesis and rise of endogenous hormone levels. It is also possible that certain quiescent cells in the meristem may be carried along at the apex and become activated during floral initiation. However, it is also possible that genes which control floral initiation are different from those responsible for leaf development.


Related Discussions:- Flower - plant growth substances

Define food effect in the survival & growth of microorganism, Define Food E...

Define Food Effects in the Survival & Growth of Microorganism? Nature of the food also affects the microbial survival and growth. Each food has its own characteristics which de

Algae, What is the basis of classification of algae

What is the basis of classification of algae

What is the function of enterogastrone, Where is it produced and what is th...

Where is it produced and what is the function of enterogastrone in the digestive process? When the chyme is too fatty there is a secretion of enterogastrone by the duodenum. Th

What is resting membrane potential of an axon, Action potentials include ch...

Action potentials include changes in the membrane potential of an axon, as shown in the schematic below. During the refractory period, sodium channels are inactivated and

Major cell types that form the osseous tissue, Q. What are the three major ...

Q. What are the three major cell types that form the osseous tissue? What are their functions? The three major cell types of the osseous tissue are the osteocytes, the osteobla

Why food which can be taken in plenty, Food Which can be Taken in Plenty an...

Food Which can be Taken in Plenty and Food to be Avoided Lastly, in the context of changing the diet, we should know the foods to be avoided and the food to be taken in plenty

Classification of habituating drugs, CLASSIFICATION OF HABITUATING DRUGS - ...

CLASSIFICATION OF HABITUATING DRUGS - There are a large number of drugs on which people become dependent. These are classified into 2 main categories - (i) Psychotropic d

Statistical measures - population, Statistical Measures - Population A...

Statistical Measures - Population A population has a number of group characteristics that are statistical measures unique to the population group and are not the characteristi

Define effect on oestrogens and progesterone in pregnancy, Define effect on...

Define effect on Oestrogens and progesterone in pregnancy? Oestrogens and progesterone are secreted by the placenta from 8-10 weeks of gestation. Progesterone increases through

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