【摘要】 本文研究了绿豆的种质差异、光照、真叶和下胚轴与ＢＲ促进的绿豆上胚轴生长的关系。发现绿豆品系的差异显著地影响上胚轴对ＢＲ的响应；ＢＲ可抵消光对上胚轴生长的抑制作用；真叶和下胚轴可显著地影响ＢＲ促进的上胚轴的生长；ＢＲ不能促进已停止生长的、发育成熟的下胚轴细胞的伸长，但可促进下胚轴中ＲＮＡ的大量合成，主要是ｒＲＮＡ的合成，对ＤＮＡ和ｍＲＮＡ的合成没有影响。认为下胚轴增加ＢＲ促进的上胚轴的伸长作用与ＲＮＡ在下胚轴中大量地合成有关。更多还原

【Abstract】 Relationship of strain character,light , leaf and hypocotyl to brassinolide(BR ) promoted epicotyl growth in mung bean cuttings were studied. It was found that strain character of mung bean affects obviously the response of epicotyl to BR,BR antagonizes the inhibition of light to epicotyl growth , leaf and hypocotyl in-crease obviously BR-promoted epicotyl growth,BR doesn’t promote the cell elonga-tion in hypocotyl that has stopped growth,but it promotes largely RNA synthesis,that is mainly rRNA synthesis and isn’t DNA and mRNA, It is considered that hypocotyl increased the effect of BR-promoted epicotyl growth is related to RNA synthesis in hypocotyl.更多还原