摘要
为了探讨无籽西瓜种子萌发与磷酸戊糖代谢途径的关系,研究了无籽西瓜种子萌发过程中磷酸戊糖代谢途径的G-6-PDH和6-P-GDH2个关键性酶联合活性变化。结果表明:无籽西瓜种子随着萌发过程的进行,G-6-PDH和6-P-GDH联合活性在36h种子的各个部位出现高峰值,然后下降,与种子的萌发裂口时间一致,且种胚中G-6-PDH和6-P-GDH联合活性大小决定其萌动的开始,表明无籽西瓜种子萌发与磷酸戊糖代谢途径密切相关。
To explore the relationship between phosphopentose pathway and germination of triploid watermelon seeds, changes of G-6-PDH and 6-P-GDH enzyme activities during the germination of triploid watermelon seed were studied. The activities of G-6-PDH and 6-P-GDH reached highest at 36h after germination and decreased afterwards. The enzyme activi- ty peak was concordant with the seed coat cracking stage. The beginning of germination was determined by the activities of G-6-PDH and 6-P-GDH of seed embryo. These results suggest that triploid watermelon seed germination may be closely related to phosphopentose pathway.
出处
《中国瓜菜》
CAS
2012年第4期5-7,共3页
China Cucurbits And Vegetables
基金
国家现代农业产业技术体系建设专项(CARS-26-09)
