GIBBERELLINS ; PLANT GROWTH AND MOVEMENT HORMONE
Gibberellin was discovered by a Japanese scientist , E.Kurosawa in 1926. It was extracted from the fungus Gibberella fujikuroi ( now known as Fusarium moniliforme). This fungus caused a disease in the rice seedlings called the " foolish seedling of rice " or bakane disease of rice in Japan . The infected seedlings were usually taller, seedless and pale in color . The active substance isolated from the extract of this fungus having the capacity of stimulating the abnormal growth was named as gibberellin . Till now lot of research has been done and more than a 100 different kinds of gibberellins have been identified.
Gibberellins are abundant in root and shoot apex ,buds m young leaves and young embryos. They are present in greatest concentration in immature seeds ( embryo ) . They are supposed to move readily in all directions through both xylem and phloem .
Roles and applications of Gibberellins are :
- Stem elongation and genetic dwarfism
- Parthenocarpy
- Bolting
- Seed germination
- Sex expression
- Flowering
- Breaking dormancy
- Enzyme formation
!😊
I hope you like my stuff .please do Upvote , resteem and follow . I will do 100% follow back ,and upvote .
Thank you ! 😊😊
Resteemed your article. This article was resteemed because you are part of the New Steemians project. You can learn more about it here: https://steemit.com/introduceyourself/@gaman/new-steemians-project-launch
@originalworks
The @OriginalWorks bot has determined this post by @upama to be original material and upvoted it!
To call @OriginalWorks, simply reply to any post with @originalworks or !originalworks in your message!
To nominate this post for the daily RESTEEM contest, upvote this comment! The user with the most upvotes on their @OriginalWorks comment will win!
For more information, Click Here!
Please support me by upvoting,resteeming,and following .
you should really link your sources
Ok ,I will from next time..
Thank you for your suggestion