Plant growth and Auxins

Edited by Jamie (ScienceAid Editor), Taylor (ScienceAid Editor), Jen Moreau

Ad

Auxins

Auxins are plant growth hormones. They work by making cells grow longer, and divide more. A growth reaction to a stimulus is called a tropism, and different prefixes denote what type of stimulus is involved.

Was this helpful? Yes | No | I need help
  • Photo- (light)
  • Geo- (gravity)
  • Hydro- (water)

Below is a diagram showing how a phototropism causes the plant to grow in the direction of the sun

how a phototropism causes a plant to grow towards the sun

The auxin collects on the dark side of the shoot; therefore, more growth will occur on this side of the plant and the shoot will gradually lean toward the sun. Now it can now make best use of the environment. This effect can be observed with house plants. If you have a plant in a room with only one window, it will often develop more on the side that faces the window.

Was this helpful? Yes | No | I need help

Commercial Applications

Plant hormones have many commercial uses relating to agriculture and flower growing. Some are:

  1. 1
    Roots
    .
    A cutting from a plant can be taken, for example a branch. If a bit of auxin is applied to the base and this is put in soil, it will grow roots and a clone is made.
    Advertisement
    Was this step helpful? Yes | No | I need help
  2. 2
    Fruits
    .
    They can be used to slow down the process of ripening so they arrive fresh after transport.
    Was this step helpful? Yes | No | I need help
  3. 3
    Weeds
    .
    As well as encouraging life, auxin can also be used to destroy it. Applying auxins can make weeds grow too fast and therefore die.
    Was this step helpful? Yes | No | I need help
    Advertisement

Questions and Answers

How to use indole acetic acid on tomato productivity and what are the treatment that I will use?

What is the effect of IAA on the fruits of tomato. what is the important of IAA. I NEED THIS IN MY RESEARCH PROPOSAL,,SO I WANT TO GET SOME INFORMATION TO OTHER PERSON SO THAT I CAN FINISH OR ANSWER MY ASSIGNMENT IN MY STUDIES THANK YOU. I have tried: I TRY TO RESEARCH SOME INFORMATION TO THE PAST THESES BUT THE SAME I CAN NOT GET THE EXACT INFORMATION. I think it was caused by: I THINK THE CAUSED IS I WILL USE THIS FOR MY THESIS WHEN I'm IN 4RTH YEAR STUDENT

Was this helpful? Yes | No | I need help

ScienceAid QnA. This section is not written yet. Want to join in? Click EDIT to write this answer.

Referencing this Article

If you need to reference this article in your work, you can copy-paste the following depending on your required format:

APA (American Psychological Association)
Plant growth and Auxins. (2017). In ScienceAid. Retrieved Apr 29, 2017, from https://scienceaid.net/biology/plants/plantgrowth.html

MLA (Modern Language Association) "Plant growth and Auxins." ScienceAid, scienceaid.net/biology/plants/plantgrowth.html Accessed 29 Apr 2017.

Chicago / Turabian ScienceAid.net. "Plant growth and Auxins." Accessed Apr 29, 2017. https://scienceaid.net/biology/plants/plantgrowth.html.

If you have problems with any of the steps in this article, please ask a question for more help, or post in the comments section below.

Comments

ScienceAid welcomes all comments. If you do not want to be anonymous, register or log in. It is free.

Ask the author

Jamie
Featured Author
166 Articles Started
1,284 Article Edits
43,715 Points
Jamie is a featured author with ScienceAid. Jamie has achieved the level of "Captain" with 43,715 points. Jamie has started 166 articles (including this one) and has also made 1,284 article edits. 105,000 people have read Jamie's article contributions.
Jamie's Message Board
Jamie: Hi, my name is Jamie.
Jamie: Can I help you with your problem about "Plant growth and Auxins"?
 

Article Info

Categories : Plants

Recent edits by: Taylor (ScienceAid Editor), Jamie (ScienceAid Editor)

Share this Article:

Thanks to all authors for creating a page that has been read 343 times.

Do you have a question not answered in this article?
Click here to ask one of the writers of this article
x

Thank Our Volunteer Authors.

Would you like to give back to the community by fixing a spelling mistake? Yes | No