response to stress response to external stimulus response to biotic stimulus response to stress response to external stimulus response to biotic stimulus response to stress response to external stimulus response to biotic stimulus response to stress response to external stimulus response to biotic stimulus response to stress response to external stimulus response to biotic stimulus response to stress response to external stimulus response to biotic stimulus response to stress response to external stimulus response to biotic stimulus response to stress response to external stimulus response to biotic stimulus response to stress response to external stimulus response to biotic stimulus response to stress response to external stimulus response to biotic stimulus response to stressresponse to stress response to external stimulusresponse to external stimulus response to biotic stimulusresponse to biotic stimulus hydrolase activity hydrolase activity hydrolase activity hydrolase activity hydrolase activity hydrolase activity hydrolase activity hydrolase activity hydrolase activity hydrolase activity hydrolase activityhydrolase activity extracellular region extracellular region extracellular region extracellular region extracellular region extracellular region extracellular region extracellular region extracellular region extracellular region extracellular regionextracellular region