Abstract
The allometric relationship between the sucrose synthase (SS) (EC 2.4.1.13) activity per fruit and fresh weight (FW) of cucumber (Cucumis sativusL. cv. Asomidori No. 5) fruits as affected by 60 mM NaCl salinity was examined. The allometric coefficient was close to 2/3, which is consistent with the localization of the enzyme in the cytosol. SS activity on the basis of FW2/3 was fairly constant during the fruit development until 7 d after anthesis, and it was consistently lower at 60 mM NaCI than control, suggesting the involvement of SS in the salinity response.
