@Article{taiwania1983281128, AUTHOR = {Shu-Mei Pan}, TITLE = {The Effect of Salt Stress on the Betaine Aldehyde Dehydrogenase in Spinach}, JOURNAL = {Taiwania}, VOLUME = {28}, YEAR = {1983}, ISSUE = {1}, PAGES = {128-137}, URL = {https://taiwania.ntu.edu.tw/abstract/538}, ABSTRACT = {The growth, betaine aldehyde dehydrogenase, malate dehydrogenase, phosphatase and peroxidase of spinach have been measured over a range of salinities. A slight decrease in fresh weight of the shoot was found with increasing salinity above 100mM NaCl; at 300mM NaCl, the fresh weight growth of the root, or the cotyledon was drastically inhabited. Tissue enzyme activities were stydies throughout the experimental range. Betaine aldehyde dehydrogenase was restricted to the shoot of spinach, not detected in the root or the cotyledon. Betaine aldehyde dehydrogenase increased significantly at 150mM NaCl, and 3-fold increase at 300mM NaCl. However, fresh weight growth, malate dehydrogenase, alkaline phosphatase showed the similar inhibition at a salinity higher than 150mM NaCl. Peroxidase of salinized spinach was stimulated slightly. It was suggested that the increased betaine aldehyde dehydrogenase of salonized spinach may reflect the betaine biosynthetic pathway accelerated somehow by an incremental salt stress.}, DOI = {10.6165/tai.1983.28.128} }