01299naa a2200205 a 450000100080000000500110000800800410001910000160006024500930007626000090016952007470017865300150092565300210094065300100096165300140097170000170098570000210100270000170102377300530104016484582023-04-17       1991    bl uuuu     u00u1 u    #d1 aLUIS, A. G.  aThe Transport of sugars in developing fruits of satsuma mandarin.h[electronic resource]  c1991  aTranport of sugars to the juice sacs of developing satsuma mandarin (Citrus unshui Marc) has been studied in attached fruits and in isolated fruit pieces. 14C2 fed to the leaves resulted in [14C]sugar accumulation in the juice sacs, mainly as [14C]sucrose. Uptake of sucrose and glucose by the excised fruit pieces proceeded linearlv with time. Sucrose uptake was linearly related to sucrose concentration over the range 25-300 mM, with no indication of saturation. This uptake was insensitive to pH (5,7 or 9). Ca2+ (3 mM), PCMBS (2.5 mM), DNP (1 mM) or vanadate (0.1 mM) but was slightly reduced by eryhrosin (21% by 0.1 mM; 27%by 1 mM). No competitive effect of glucose (up to 100 mM) was detectable on sucrose uptake from 100 mM solution.  aJuice sacs  aSatsuma mandarin  aSugar  aTransport1 aDIDEHVAR, F.1 aGUARDIOLA, J. L.1 aBAKER, D. A.  tAnnals of Botany Companygn.68, p.349-357, 1991.