The roles of starch metabolic pathways in the cold-induced sweetening process in potatoes
The roles of starch metabolic pathways in the cold-induced sweetening process in potatoes
复制标题
淀粉代谢途径在马铃薯冷诱导甜味过程中的作用
DOI：
10.1002/star.201600194
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发表时间：
2017
期刊：
影响因子：
2.3
通讯作者：
Xie Conghua
中科院分区：
文献类型：
--
作者：
Zhang Huiling;Hou Juan;Liu Jun;Zhang Juping;Song Botao;Xie Conghua
冷诱导增甜（CIS）对马铃薯块茎采后品质至关重要，还原糖的积累受几种代谢途径的调节，如淀粉合成和降解、异质生质、糖酵解和厌氧呼吸。淀粉是贮藏器官的能量来源，其代谢在马铃薯CIS中起着重要作用。本文综述了马铃薯块茎中淀粉的合成和降解过程以及相关基因在马铃薯CIS中的作用。淀粉合成酶、分支酶和去分支酶用于淀粉生物合成，以及用于淀粉降解的α -淀粉酶、β -淀粉酶、淀粉酶抑制剂和淀粉磷酸化酶。强有力的证据有关相关的基因淀粉降解和CIS被描述。并对今后淀粉代谢研究的前景进行了展望。
Cold‐induced sweetening (CIS) is critical for the postharvest quality of potato tubers, and the accumulation of reducing sugar is regulated by several metabolic pathways, such as starch synthesis and degradation, hexogenesis, glycolysis, and anaerobic respiration. Starch is the energy source of storage organs, and its metabolism plays an important role in potato CIS. Here, the processes of starch synthesis and degradation in potato tubers and the functions of related genes in potato CIS are summarized,e.g., adenosine diphosphate glucose pyrophosphorylase, starch synthases, branching enzymes, and debranching enzymes for starch biosynthesis as well as α‐amylase, β‐amylase, amylase inhibitors, and starch phosphorylase for starch degradation. Powerful evidence concerning the relevance of genes related to starch degradation and CIS is described. Moreover, future perspectives in starch metabolic research are discussed.