Ma. Sancho et al., PEROXIDASE-ACTIVITY AND ISOENZYMES IN THE CULTURE-MEDIUM OF NACL ADAPTED TOMATO SUSPENSION CELLS, Plant cell, tissue and organ culture, 44(2), 1996, pp. 161-167
The medium of tomato (Lycopersicon esculentum) cells adapted to grow i
n the presence of 15 g 1(-1) NaCl had a higher peroxidase activity tha
n the medium of an unadapted tomato cell line. When the adapted cells
were cultured in a medium without NaCl, the value found for peroxidase
activity was intermediate. The increase in peroxidase activity was pa
rallel to an increase of lignin-like compounds in the cell walls, as w
ell as to an increased content or appearance of neutral and basic pero
xidase isoenzymes. Apparently, the high values of peroxidase activity
in the medium of the salt-adapted cells reflect the changed mechanical
properties of the cell wall which, in turn, could be related to the s
alt adaptation process.