It should be noted that there is a consensus that stress
conditions are highly variable in their duration, and moreover,
the same plant may exhibit different responses to stress
depending on the organ or even the tissue/organelle evaluated.
As has been observed in many studies, enzyme activities often
do not follow a specific or binomial pattern of response (e.g.,
increasing or decreasing) over time or with exposure to a variety
of stress factors (metals, temperature, drought, among others).