Option to notify assignees of subtasks created from a request form

There are certain times when we would like the assignees of subtasks to be notified in their inbox that the task has been assigned to them when the task is created through a request form.  Currently, the assignee of the master task is notified but not the subtask assignees.  When something is time sensitive, it could be easily missed since it only shows up in the dashboard.  It would be great to have the option to notify or not notify assignees as necessary.