Effects of 6-methoxy-2-benzoxazolinone on the germination and alpha-amylase activity in lettuce seeds.
Germination of lettuce seeds was inhibited by 6-methoxy-2-benzoxazolinone (MBOA) at concentrations greater than 0.03 mmol/L. MBOA also inhibited the induction of alpha-amylase activity in the lettuce seeds at concentrations greater than 0.03 mmol/L. These two concentration-response curves for the germination and alpha-amylase indicate that the percentage of the germination was positively correlated with the activity of alpha-amylase in the seeds. Lettuce seeds germinated around 18h after incubation and inhibition of alpha-amylase by MBOA occurred within 6h after seed incubation. These results show that MBOA may inhibit the germination of lettuce seeds by inhibiting the induction of alpha-amylase activity.
Kato-Noguchi
Hisashi
H
Department of Biochemistry and Food Science, Faculty of Agriculture, Kagawa University, Miki, Japan. hisashi@ag.kagawa-u.ac.jp
Macías
Francisco A
FA
D001583:Benzoxazoles / Q000494:pharmacology*; D018525:Germination / Q000502:physiology*; D018545:Lactuca / Q000502:physiology*; D012639:Seeds / Q000502:physiology*; D000516:alpha-Amylases / Q000037:antagonists & inhibitors*
D001583:Benzoxazoles; C031896:6-methoxybenzoxazolinone; D000516:alpha-Amylases