Apoptosis and the tolerance of plantlets of Acacia implexa treated in vitro with cold stress were studied by microphotographics and total DNA agarose gel electrophoresis.

摘要利用显微观察DNA电泳等技术，研究在低温胁迫诱导下灰木相思组培苗细胞凋亡低温环境耐受性。

The factors which influenced somatic embryogenesis and plantlet regeneration in Picea meyeri Rehd. et Wils. were studied in order to establish a high frequency embryogenetic system.

摘要为建立白杄体细胞胚胎发生及其植株再生率实验系统，聚乙二醇及干化处理影响进行了系统研究。