Give scientific reasons: Rice plants infected by the fungus $Gibberella$ $fujikuroi$ grow foolishly tall.

(N/A) The fungus $Gibberella$ $fujikuroi$ causes 'bakanae' (foolish seedling) disease in rice plants.
This fungus secretes a plant growth regulator known as $Gibberellin$.
$Gibberellins$ are responsible for internode elongation,which leads to the excessive and abnormal height increase in the infected rice plants.