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

摘要： 民族民间利用植物进行染色的传统知识对现代人类社会具有极高的价值。本文从民族植物学的角度，探讨民族民间传统利用的染色植物及其染色知识的研究方法，分析了民族民间利用植物作为染色原料的重要性、现状及传统染色知识在民族民间的存在范围等，并对民族民间传统染色植物提出若干研究建议。

关键词: 民族植物学, 传统知识, 染色植物, 色素植物, 染料