Botany Science Fair Project
The effect of soil salt stress on plant health, plant ethylene and ABA production

Projects by Grade Level
1st 2nd 3rd 4th 5th 6th
7th 8th 9th 10th 11th 12th
Home Advanced Award Winning Warning!
Project Information
Title: The effect of soil salt stress on plant health, plant ethylene and ABA production
Subject: Botany
Grade level: High School - Grades 10-12
Academic Level: Advanced
Project Type: Experimental
Cost: Medium
Awards: First Place, Canada Wide Virtual Science Fair (2006)
Affiliation: Canada Wide Virtual Science Fair
Description: The growing conditions of the plant A. thaliana and its phytohormonal mutants were all kept constant. The salt concentrations in the agar (seed growing) were varied and the different plant hormone mutants were grown on agars of varying concentrations. Thus, the different plant mutants and the effect of salt stress on them could be examined through this experiment.

Plants affected by salt stress are unable to take water from soil, due to an osmotic imbalance between soil and plant.

Salinity imposes two stresses on the cell: one is the loss of turgor due to the hypertonicity of the extracellular medium, and the other is a direct effect of toxic ions on metabolism. Therefore plants have developed several defence mechanisms. The Na/H+ antiporter is heavily involved and is powered by the action of the H+-ATPase which is highly expressed in leafs and roots during salt stress.

Location and timing of ABA biosynthesis

  • Released during desiccation of the vegetative tissues and when roots encounter soil compaction.
  • Synthesized in green fruit and seeds at the beginning of the wintering period
  • Mobile within the leaf and can be rapidly translocated from the roots to the leaves by the transpiration stream in the xylem.
  • Produced in response to environmental stress, such as heat stress, water stress, salt stress.
  • Synthesized in all plant parts, e.g. roots, flowers, leaves and stems

Source: Wikipedia (All text is available under the terms of the Creative Commons Attribution-ShareAlike License)

Useful Links
Science Fair Projects Resources
Citation Guides, Style Manuals, Reference
General Safety Resources
Electrical Safety FAQ
Botany Science Fair Projects

Botany Award Winning Projects

Botany Experiments


Projects Home
Primary School
Elementary School
Middle School
High School
Easy Projects
Award Winning
Popular Ideas
Branches of Science

Science Fair Project Guide
Science Fair Project Types
The Scientific Method - How to Experiment
The Display Board
Topics, Ideas, Sample Projects

Repeat Famous Experiments and Inventions
Science Jokes Science Trivia
Scientists & Inventors

Read for Free
The Science Fair
A Juvenile Science Adventure Novel
by Julian T. Rubin

Human Abridged Wikipedia Articles

My Dog Kelly

Follow Us On:

Privacy Policy - Site Map - About Us - Letters to the Editor

Comments and inquiries:

Last updated: January 2018
Copyright 2003-2018 Julian Rubin