花生种子贮藏蛋白质合成和累积与活力的关系

RELATIONSHIP BETWEEN THE ACCUMULATION OF STORAGE PROTEINS AND FORMATION OF VIGOR OF PEANUT SEED

摘要:

花生种子发育过程中活力的形成在时间上是不均衡的，果针入土后４０ｄ内活力水平很低，４０ｄ之后活力水平才急剧上升，这和贮藏蛋白迅速合成的时期吻合．随着贮藏蛋白质的合成和累积，由发育转向萌发时其被降解的速度加快，花生球蛋白被优先降解．和贮藏蛋白质其它组分相比较，花生球蛋白和种子活力有更密切的关系．

Abstract:

The study of the relationship between the accumulation of storage proteins and the formation of vigor of peanut seed showed that the process of formation of seed vigor was not a symmetrical process,and the germination capability was completed before 40 days after pegging (DAP)and vigor formation speeded up after 40 DAP. The synthesis and accumulation of storage proteins coincided with the formation of seed vigor. With the accumulation process of different storage proteins, arachin was degraded more rapidly than conarachin and 2S peptides.As it consists of the parts of the storage protein, it was concluded that arachin was more correlative with the formation of seed vigor.