Abstract
The subcellular localization of fatty acid hydroperoxide cleavage enzyme in cowpea and cucumber leaves and the changes of its activity by CMV-infection were studied. Most of the enzyme activities in the leaf tissue were mainly located in plasma membrane. Little activity was associated with endoplasmic reticulum, mitochondria and microbody. The enzyme activity and malonaldehyde content in cowpea, local lesion host of CMV, increased rapidly during 12hr after inoculation and then decreased gradually as lesion appeared. However, the enzyme activity and malonaldehyde content did not change significantly in cucumber over a period of 10 days after inoculation.
