Research Advance on Mechanism of Expansion in Sweetpotato Storage Roots
The sweetpotato[Ipomoea batatas(L.)Lam.]is grain and economic crop,which plays an vital role in ensuring national food security and promoting social and economic development.Sweetpotato storage root is the main organ of sweetpotato harvested and rich in nutrition,its development and expansion directly impact on sweet-potato production.Therefore,it has great significance for improving the yield of sweetpotato by understanding the mechanism into expansion of storage root.In this study,the research progress on sweetpotato storage root expan-sion has been reviewed in recent years from 4 aspects that affect the storage root expansion.The environmental factors such as temperature,light,moisture,fertilization level and plastic film,root metabolite such as starch,solu-ble sugar,protein and essential amino acids,and endogenous hormones such as cytokinin(CTK),abscisic acid(ABA),auxin(IAA),gibberellin(GA)and jasmonic acid(JA)were studied,and MADS-box and Homeobox tran-scription factors and genes related to starch synthesis and root tuber formation.It will provide a reference for in-depth study on the sweetpotato storage root expansion.
万方数据
维普
