Gibberellins - plant growth substances, Biology

Assignment Help:

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.

 


Related Discussions:- Gibberellins - plant growth substances

A healthy potted pitcher plant, A healthy potted pitcher plant when kept in...

A healthy potted pitcher plant when kept in a green house with favourable conditions of light, temperature, soil and water showed poor growth although there was no infection. Give

Metestrus - estrous cycle, Metestrus - Estrous cycle This occurs shortly...

Metestrus - Estrous cycle This occurs shortly after ovulation and is intermediate between estrus and diestrus. The period lasts for 10 to 14 hours and mating is usually not perm

Embryology, Explain the gradient theoryof experimental embryology

Explain the gradient theoryof experimental embryology

Foot-and-mouth disease, Foot-and-mouth disease Foot-and-mouth disease ...

Foot-and-mouth disease Foot-and-mouth disease (FMD) is an extremely contagious viral disease of cloven footed animals most notably cattle, pig and sheep. It is well known for

Why bacteria can be transmitted from person to person, Identify three ways ...

Identify three ways that bacteria can be transmitted from person to person. Diseases affecting nerves contain botulism and tetanus; diseases affecting the intestine include sa

Eggs of hen, EGG S OF HEN It is a meiolecithal egg which is oval. T...

EGG S OF HEN It is a meiolecithal egg which is oval. The animal pole is found in the form of a small germinal disc. The vegital pole has two types of yolk viz. White yol

How does the cellular immune response take place, Q. How does the cellular ...

Q. How does the cellular immune response take place? The lymphocytes that participate in the cellular immune response are the T lymphocytes and T lymphocytes differentiate into

What are chylomicrons, What are chylomicrons? Yes, so you now know that...

What are chylomicrons? Yes, so you now know that chylomicrons are basically lipoprotein molecules which are water miscible. They are poured into lymphatic vessels through lacte

Agro industrial-selenium, Selenium Glutathione peroxidase (GSH-Px) was...

Selenium Glutathione peroxidase (GSH-Px) was the first selenium metalloenzyme identified.Glutathione peroxidase catalyzes the reduction of hydrogen peroxide and lipid h yp r o

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