Starch biosynthesis and the potential for its manipulation

摘要: Starch is the major form of carbon reserve in plants. Almost all plant organs accumulate it at some stage their development, and constitutes half or more dry weight many storage organs, for example tubers, roots, seeds cereals legumes. Perhaps because such an abundant natural product, there has until recently been little interest how its production plants might be manipulated. In last five years, however, starch synthesis received increasing attention two main reasons. First, a desire to manipulate overall composition harvested parts nutritionally commercially useful ways. component these parts, understanding regulation accumulation will aid attempts make directed changes composition. Second, produce range cultivars with starches differing properties within single crop species. food industrial uses, require different sorts distinct physical chemical properties. The required are usually produced by various modifications extracted starch. Manipulation create which would reduce dependence on this processing. Such manipulation requires knowledge way determined during synthesis.