摘要
绿芦笋采收后在24℃±1℃条件下用外源赤霉酸(GA3)处理,研究GA3对采后绿芦笋木质化的调控作用。结果表明,GA3处理可显著抑制绿芦笋木质素及其合成前体总酚含量的上升,抑制活性氧含量的增加,抑制与木质素合成相关的酶包括苯丙氨酸解氨酶(PAL)、多酚氧化酶(PPO)、肉桂醇脱氢酶(CAD)和过氧化物酶(POD)等酶的活性上升,延缓可溶性蛋白、DNA和RNA的降解。表明,GA3具有明显保持绿芦笋采后品质的作用。
Excised green asparagus(Asparagus officinalis L.) were treated with gibberellic acid(GA3)at 24℃±1℃. The results indicated the levels of lignin, total phenol and active oxygen in asparagus treated with GA3 were significantly lower than those of in the control. Activities of the enzymes related lignin synthesis,including phenylalanine deaminase, polyphenol oxidase, cinnamyl alcohol dehydrogenase and peroxidase were also reduced by GA3 treatment. Degradation of protein,DNA and RNA in the asparagus were significantly inhibited by GA3 treatment. The results suggested that GA3 treatment could improve the postharvest quality of green asparagus.
出处
《中国农业科学》
CAS
CSCD
北大核心
2005年第2期383-387,共5页
Scientia Agricultura Sinica
基金
中以农业研究基金资助项目(SIARF2001-04)
