期刊论文

Relationship Between Phosphopentose Pathway and Germination of Triploid Watermelon Seed

中文

中国瓜菜

1673-2871

2012

25

4

5-7

10.3969/j.issn.1673-2871.2012.04.002

(CARS-26-09):国家现代农业产业技术体系建设专项

本校为第一机构

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-GDH 2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 waterme...