Grain-fill depends upon import of sugars and amino acids from the leaves and stem.
Mass import of sugars ends at the same developmental stage as in green leaves (Turgeon, 1984), but is not followed by a period of export.
The above cumulative evidence indicates that, apart from the important role of cwINV during ripening [ 50], vINV also plays a relevant role in driving the import of sugars during ripening.
For the import of sugars, only the components of the ABC transporter for maltose (MalKFGE) are present in strain AT, which were also identified in ' Ca. P. asteris' [ 8].
Fruit development and ripening are dynamic processes involving cell division, expansion, differentiation, synthesis of pigments and other secondary metabolites, as well as import of sugars into the fruit (reviewed in [ 57]).
He limited imports of sugar and textiles.
Also in relation to this division, we note the new sugar hub at Immingham, which will help enable cost effective imports of sugar, is due to be commissioned in January.
Though the United States is a culprit -- its farmers get billions of dollars in annual subsidies and it restricts imports of sugar, peanuts and lemons -- it sides with developing countries against Europe and Japan, which protect their own farmers even more extensively.
Imports of sugar confectionery in 1988 were $26 m increasing to $123 m in value in 2010, and bread, pastry, cakes and biscuits increased at an even greater rate from $39 m in 1988 to $276 m in 2010.
And legislators from farm states aren't about to allow imports of sugar-based ethanol from Brazil.
