Overview of Foolish Seedling Disease
Foolish seedling disease, primarily caused by the fungus *Magnaporthe grisea*, significantly impacts rice crops, leading to stunted growth and abnormal elongation of seedlings. This disease has been pivotal in understanding plant hormone interactions and the development of herbicides.
Discovery of Gibberellins (GAs)
- The disease prompted researchers to investigate the mechanisms behind the abnormal growth.
- It was discovered that the fungus produces gibberellins (GAs), which are plant hormones that promote growth by stimulating cell elongation and division.
- The excessive production of GAs in infected rice plants resulted in the characteristic tall and weak seedlings, which were unable to support themselves.
Significance of the Discovery
- The identification of gibberellins from the *Foolish seedling disease* was groundbreaking, leading to a better understanding of plant growth regulation.
- GAs have since been recognized as crucial hormones in various plant developmental processes, including germination, flowering, and fruit development.
- This discovery opened avenues for agricultural practices, including the development of plant growth regulators that enhance crop production.
Conclusion
The connection between the Foolish seedling disease and gibberellins exemplifies how studying plant diseases can lead to significant advancements in plant biology and agriculture. The correct answer, therefore, is option 'C' - Gibberellins (GAs). Understanding these interactions not only aids in disease management but also enhances crop yield and sustainability.