低温对3种作物幼苗生长的影响及与根系内同工酶变化的关系

THE EFFECTS OF LOW TEMPERATURE ON SEEDLINGS GROWTH AND THE CHANGES OF ISOZYMES IN THREE CROPS

摘要: 0─4℃低温处理黄豆、绿豆、红小豆3种作物幼苗,它们的生长均明显受抑制,其中红小豆和绿豆从处理的第一天起生长就完全受抑;黄豆幼苗生长虽也受抑,但仍有缓慢生长现象。比较3种作物根系中POD、COD、ATPase同工酶,其中COD未观察到有明显变化,但POD和ATPase同工酶变化明显。0─4℃低温下3种幼苗生长受抑与根系及同工酶的变化呈一定的相关性。

Abstract: In this experiment, the growth of seedlings and roots were obviously inhibited when seedlings of Phaseolus angularis and P. radiatus were exposed to 0─4℃for 1─2 weeks, but the growth of Glycine max (L.) Merr. had not completely been inhibited. The changes in PODand ATPase isozymes of roots have been observed when seedlings were exposed to 0─4 ℃ for 1─2 weeks. The relationship between inhibited growth of seedlings and changes of POD, ATPase isozymes in three crops which were cultured at low temperature (0─4℃)was obvious.