Plant Diversity ›› 2003, Vol. 25 ›› Issue (14): 1-3.

• Articles •    

Cytological,Physiological and Biochemical Basis of Storability of Ultradry Seeds

CHENG HongYan,SONG SongQuan,ZHU Cheng,ZHENG GuangHua   

  1. Institute of Botany,Chinese Academy of Sciences,Beijing 100093,China;Xishuangbanna Tropical Botanical Garden,Chinese Academy of Sciences,Mengla 666303,China
  • Online:2003-12-26 Published:2003-12-26

Abstract: Seed ultradry storage is recently a hot research spot in the fields of seed biology and plant germplasm resources preservation.Advances in seed ultradry storage research were reviewed in this paper,implicated in (1) changes in cellular and subcellular structure of ultradry seeds;(2)effects of ultradry treatment on water state of seeds,and the relationship between the changes in water state and reaction rate of seed deterioration;(3)free radical damage and accumulation of toxic products in ultradry seeds;(4)endogenous antioxidants in ultradry seeds,and (5) protective roles of sugar and amphiphilic molecules against extreme desiccation in seed cells.In addition,perspective of resaerch on seed ultradry storage has been made in this paper.

Key words: Antioxidant