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SPS - neutral invertase (MmolxgFW-1xh"1)

Fig.7: Relationship between sucrose concentration in sugarcane suspension cells and enzyme activities (SPS, soluble acid invertase and neutral invertase). The data had been obtained by culturing the cells at different temperatures. For comparison the result obtained for individual internodes of plants grown at different temperatures is drawn as line in the right hand graph, for the purpose to demonstrate that there definitely is no correlation with SPS-SAI in suspension cells. The graph is taken from Ebrahim et al. (27).

Table 1

Sucrose transport through the tonoplast of sugarcane suspension cells and of internode parenchyma cells. Data were taken from Williams et al. (28) and Preisser and Komor (29).

Table 1

Sucrose transport through the tonoplast of sugarcane suspension cells and of internode parenchyma cells. Data were taken from Williams et al. (28) and Preisser and Komor (29).

suspension cells

Internode storage cells

reported sucrose transport rates for 7.5 nmol |il vacuole ' min"1

75 nmol mgprotejn"' min"1

100 mM sucrose

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