贵州是珙桐、桫椤、秃杉等古生物种最后的家园。新生代第四纪全球性冰川气候席卷全球时，它们在这里躲过了灭顶之灾，成为“动植物的活化石”。
Guizhouis the last home to some ancient plant species that survived the last ice age, such as the Chinese dove tree, spinulose tree ferns and Taiwania Flousiana Gaussen.
本论文对珙桐和女贞小腊两种植物的化学成分进行了研究。
The thesis described the study on the chemical constituents and their bioactivity of two kinds of plants, Davidia involucrata Baill and Ligustrum sinense.
该基因的克隆丰富和保存了珙桐基因资源，并为进一步研究冷胁迫的分子机制奠定了基础。
The present data not only enrich gene resources of Dinvolucrata, but also laid a foundation for the research on molecular mechanism of plant acclimation to cold stress.
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