【摘要】 14C-乙烯示踪试验结果表明,小麦孕穗期植株对乙烯的吸收、运转和分布规律,与对乙烯利的吸收、运转和分布规律基本一致,均向穗部集中,在小麦剑叶上涂以14C-乙烯利后,穗部释放14C-乙烯的高峰发生在第六天,此高蜂期正值小麦幼穗迅速发育时期,与乙烯利杀雄的“靶期”相吻合,认为乙烯利对小麦杀雄,是由其释放乙烯而起作用,剑叶涂14C-乙烯利15天后,雄蕊中的放射性主要分布在RNA蛋自和糖类中,雌雄蕊的HCl提取物中具放射性的物质不是未分解的乙烯利,表明乙烯利进入小麦体内能被代谢、转化,并参入其他成分之中。更多还原

【Abstract】 When wheat plants were treated with 14C-ethylene at the early boot stage,it was observed that the absorption of 14C-ethylene and the patterns of its translocation and distribution in the plant were similar to that of Ethrel.After treating with 14C-Ethrel the rate of release of 14C-ethylene in the ear increased and reached a maximum at about the sixth day,which was the sensitive period for induction of malesterility the induction of malesterility with Ethrel was thought to be through the action of ethylene.After treating with 14C-Ethrel,the radioactivity was found in the RNA and proteins,saccharide and other compounds,and the radioactive substance in HCl-extract of the pistil and the stamen was not Ethrel.It showed that Ethrel could be metabolized,and it could also be incorporated into other compounds.更多还原