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中国农学通报

中国农学通报 ›› 2015, Vol. 31 ›› Issue (27): 88-93.doi: 10.11924/j.issn.1000-6850.casb15030153

所属专题： 生物技术； 马铃薯

• 农学 农业基础科学 • 上一篇    下一篇

马铃薯淀粉合成关键酶与块茎淀粉积累的关系

唐宏亮,石 瑛,田 洵,王金明   

  1. 东北农业大学,东北农业大学农学院马铃薯教研室,东北农业大学农学院马铃薯教研室,东北农业大学农学院马铃薯教研室
  • 收稿日期:2015-03-19 修回日期:2015-08-26 接受日期:2015-04-02 出版日期:2015-09-23 发布日期:2015-09-23
  • 通讯作者: 石 瑛
  • 基金资助:
    现代农业产业技术体系建设专项资金资助(CARS-10)。

Relationship Between Key Enzymes of Starch Synthesis and Tuber Starch Accumulation

  • Received:2015-03-19 Revised:2015-08-26 Accepted:2015-04-02 Online:2015-09-23 Published:2015-09-23

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摘要： 为探讨淀粉在马铃薯块茎中积累规律， 及催化其生物合成的 4种关键酶。从而为马铃薯的淀粉品质改善提供合理依据。以淀粉含量不同的马铃薯品种 ‘东农 308’ 和 ‘延薯 4号’ 为材料， 在马铃薯匍匐茎顶端膨大后开始测定马铃薯叶片与块茎中的淀粉合成关键酶、 淀粉动态积累量以及直链淀粉动态积累量。研究结果表明， 这 4种关键酶在淀粉合成积累过程的不同时期表现出不同的活性强弱， 继而控制淀粉生物合成的开始与速率， 并影响马铃薯直链、 支链淀粉的合成与积累。且 ‘东农 308’ 淀粉含量以及淀粉各组分含量在各时期都要高于 ‘延薯 4号’ ， 这也是由于 ‘东农 308’ 的淀粉合成关键酶活性高于 ‘延薯4号’ 的酶活性。

关键词: 农村劳动力, 农村劳动力, 就业培训, 收入影响

Abstract: The experiment used two potato varieties‘Dongnong 308’and‘Yanshu 4’as tested materials, and aimed to research the absorption and accumulation of starch in tubers of different potato varieties, and to study the four key enzymes related to its synthesis and provide a reasonable basis for potato improvement. After the top of the potato stolonic began to expand, the key enzymes of starch synthesis, the dynamic accumulation of starch and the amylose dynamic accumulation in leaf blade and tubers were measured. The results showed that, the four key enzymes in different periods of starch accumulation and synthesis process showed different activity strength, which in turn controlled the beginning and the rate of the starch biosynthesis, and then influenced the synthesis and accumulation of potato amylose and amylopectin. And both the starch content and starch content of each component of‘Dongnong 308’were more than that of‘Yanshu 4’in every period. The reason was that the key enzymes of starch synthesis of‘Dongnong 308’were higher than that of‘Yanshu 4’ .