摘要
本文主要介绍青霉素促进小麦胚芽鞘的仲长生长作用,其生理活性略小于IAA,但青霉素有比较宽的促进胚芽鞘伸长的浓度范围.青霉素和IAA或者半胱氨酸混合处理,对芽鞘切段的伸长都表现出加成作用.青霉素有拮抗ABA、2,4—DNP对小麦胚芽鞘切段伸长的抑制作用.
This paper mainly introduces promotion effect of penicillin on elongation growth of wheat coleoptiles. Its physiological activity is slightly less than that of IAA, but penicillin has a wider concentration range within which 'coleoptile elongation is promoted. The effects of penicillin and IAA or cysteine are additive on enhancement of coleoptile segment elongation. In addition, penicillin could have the antagonistic action on the inhibitive effect of ABA and 2, 4-DNP in the elongation of wheat coleoptile segments.
关键词
青霉素
小麦
胚芽鞘伸长
penicillin
IAA
ABA
cysteine
2,4-DNP
coleoptile eJongation
