Perle is an aroma-type cultivar, bred in 1978 in Germany from Northern Brewer. It is grown in Germany, Belgium and the U. S. A.
Perle is a newer variety, originally from Germany but now grown quite successfully in the US. Perle is a medium alpha hop with a very clean, almost minty bitterness and pleasant aroma. (alpha acid: 7.0-9.5% / beta acid: 4.0-5.0%)
Probably as long as the Alpha percentage is the same they should be ok to use. Otherwise adjust your recipe.