Gibberellins - plant growth substances, Biology

Gibberellins - Plant Growth Substances

In late 1920's Kurosawa observed that the medium in which the fungus Gibberella had grown could cause the abnormal tallness in rice seedlings. This work was later taken up by Yabuta and Sumiki (1938) who isolated a crystalline product from Gibberella and named it Gibberellin. Later, Gibberellins were isolated from bean plants by MacMillan, and from citrus plants by Sumiki, from Bamboo shoots by Takahashi and Tamura. This established the wide occurrence of Gibberellins in plants. Today, we know that more than 70 different Gibberellins exist. All have a common skelton but variations are caused by substitutions at several positions in the molecule.

 

Posted Date: 1/24/2013 1:59:44 AM | Location : United States







Related Discussions:- Gibberellins - plant growth substances, Assignment Help, Ask Question on Gibberellins - plant growth substances, Get Answer, Expert's Help, Gibberellins - plant growth substances Discussions

Write discussion on Gibberellins - plant growth substances
Your posts are moderated
Related Questions
State four long-term benefits of exercise. The long-term advantages of exercise are: a) Enhance in size of the muscles used, b) Decrease of heart rate and c)  Enhance

biting mechanism in snakes

What is tree girdling? What happens to a plant when that girdle is removed from the stem (below the branches)? Malpighi's girdling, or tree girdling, is the removal from a ste


Define Etiological Risk Factors in Cancer? Cancer risks are climbing because of increasingly sedentary lifestyles and diets which are high in fat and sugar although low in frui

Q. Energy requirement during congestive cardiac failure? Energy: Composition of the calorie requirements on the basis of body weight is usually not feasible due to the presence

Importance Value Index (IVI) - Synthetic Characters In any study of community, the quantitative value of each of the frequency density, and cover has its own importance. But t

Define Physiology: Cohesion & Adhesion Theory? Transport in Plants :  Transport of water, minerals and nutrients within vascular plants is dramatically different from animals

Phylum Ciliophora 1) They have cilia at some stage in the life-cycle. The cilia are used for locomotion or creating a feeding current. 2) They feed heterotrophically usually

He p atitis Hepatitis is defined as degenerative/ inflammatory processes of the liver. The clinical manifestations associated with hepatic dysfunctions results from impairmen