TY - JOUR A1 - Compart, Julia A1 - Li, Xiaoping A1 - Fettke, Jörg T1 - Starch-A complex and undeciphered biopolymer JF - Journal of plant physiology : biochemistry, physiology, molecular biology and biotechnology of plants N2 - Starch is a natural storage carbohydrate in plants and algae. It consists of two relatively simple homo-biopolymers, amylopectin and amylose, with only alpha-1,4 and alpha-1,6 linked glucosyl units. Starch is an essential source of nutrition and animal food, as well as an important raw material for industry. However, despite increasing knowledge, detailed information about its structure and turnover are largely lacking. In the last decades, most data were generated using bulk experiments, a method which obviously presents limitations regarding a deeper understanding of the starch metabolism. Here, we discuss some unavoidable questions arising from the existing data. We focus on a few examples related to starch biosynthesis, degradation, and structure where these limitations strongly emerge. Closing these knowledge gaps will also be extremely important for taking the necessary steps in order to set up starch-providing crops for the challenges of the ongoing climate changes, as well as for increasing the usability of starches for industrial applications by biotechnology. KW - Starch KW - Starch structure KW - Organization model KW - Starch metabolism KW - Analytical limitations Y1 - 2021 U6 - https://doi.org/10.1016/j.jplph.2021.153389 SN - 0176-1617 SN - 1618-1328 VL - 258 SP - 258 EP - 259 PB - Elsevier CY - München ER -