Perception of light - floral induction, Biology

Perception of Light - Floral Induction

Stimulus Leaves are found to be organs that perceive light 'stimulus', K.C. Hamner and J. Bonner showed in 1938 that even if all the leaves are stripped in a cocklebur plant and only as little as one eighth of a leaf is allowed to stay on the plant would flower in response to one short day exposure. The 'stimulus' continues to stay even when the plants are brought under non-inductive conditions. Moreover, this stimulus can be 'transferred' to another plant through grafting. Chailakhyan's classical grafting experiment using short day Nicotiana species and long day Nicotiana species clearly established this point. He suggested for the existence of 'Florigen'-a flowering hormone. So far it has not been possible to isolate the flowering hormone, although there is evidence to suggest that it consist of

  • Anthesin
  • Gibberellin

For the present flowering may be considered to be controlled by the balance between GA, cytokinin and ABA.

Posted Date: 1/24/2013 1:18:35 AM | Location : United States







Related Discussions:- Perception of light - floral induction, Assignment Help, Ask Question on Perception of light - floral induction, Get Answer, Expert's Help, Perception of light - floral induction Discussions

Write discussion on Perception of light - floral induction
Your posts are moderated
Related Questions
Define Poverty Alleviation to control under nutrition? There are a number of development programmes aiming at employment assurance to the landless and other labour with a focus

Q. What benefits can commensalism offer to a species? The Commensalism may involve obtainment of food (for instance, the innocuous bacteria of the human gut), shelter or suppor

types of enzyme

Haemo Filtration : Ultra filtration during open heart surgery helps in removing excess fluid, especially in renal failure patients. Patients are haemo diluted (haematocrit 18-20)


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

Define the Beer's Law - Nutritional  Biochemistry? Beer's law states that the concentration of a substance is directly proportional to the amount of light absorbed or inversely

Define beneficial effects of functional foods? Several beneficial effects of functional foods have been reported, which include effects such as antioxidant, anticarcinogenic, b

Iodine Iodine functions are essential components of the thyroid hormones thyroxine (T 4) and triiodothyronine (T3), which regulate the rate of energy metabolism. Absorbed iodi

Q. Can you explaon about Aortography? Visualization of the aorta and its branches is possible by several modalities today. Apart from angiography, aorta can also be visualized