iPhoto for iOS only looks at the images you sync from your computer to your iOS device. It does not have the ability to alter the images / file structure in any way that will feed back into Aperture.
Should you make an edit to an image in iPhoto for iOS you will need to share the image to your devices camera roll. This will make the image show up in Aperture as an item to be imported (just as if you had taken a picture with the camera).
Hope that helps.