不同基因型大豆GS活性动态规律研究

Study on the GS Activities in Soybean Plants among Different Genotypes

通过对不同基因型大豆GS活性变化规律的研究,结果表明:不同基因型大豆叶片GS活性变化趋势基本一致,呈双峰曲线。野生大豆茎秆和根系GS活性变化呈单峰曲线,其它品种呈双峰曲线。野生大豆荚皮GS活性呈持续下降的趋势,其它品种先上升后下降。除根瘤外其它器官GS活性野生大豆明显低于栽培大豆。不同器官GS活性比较顺序为:叶片>根瘤>茎秆>根>荚皮。R5期叶片、根系和荚皮中的GS活性与籽粒蛋白质含量呈正相关。

The study on GS Activities in Soybean Plants among Different Genotypes was conducted.The result showed that：Dynamics of GS activities in the leaves came to be a double-peak curve.Dynamics of GS activities had a single-peak curve in the roots and stems of wild soybean,others came to be a double-peak curve.Dynamics of GS activities in the pod sheds of G.soja declined gradually and the tendency was low-high-low in other varieties.The GS activities in the organs except nodules of G.soja were obviously lower than other varieties.The gradation of GS activities in different organs was leafnodulestemrootpod shed.The GS activities in leaves,roots and pod sheds at R5 were positively related to seed protein.