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中国农学通报

中国农学通报 ›› 2010, Vol. 26 ›› Issue (12): 63-66.

所属专题： 生物技术； 玉米

• 农学 农业基础科学 • 上一篇    下一篇

青贮玉米秸秆中性洗涤纤维与蔗糖合成酶活性之间的关系

朱瑾1,郝玉兰2,张秋芝1,南张杰1,李莹莹2,李素坤1,潘金豹1   

  • 收稿日期:2010-01-11 修回日期:2010-02-27 出版日期:2010-06-20 发布日期:2010-06-20

The Relationship between Stalks NDF Content and Activities of Sucrose Synthase in Silage Maize

Zhu Jin1, Hao Yulan2, Zhang Qiuzhi1, Nan Zhangjie1, Li Yingying2, Li Sukun1, Pan   

  • Received:2010-01-11 Revised:2010-02-27 Online:2010-06-20 Published:2010-06-20

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摘要：

摘要：以十个秸秆中性洗涤纤维（NDF）含量差异明显的青贮玉米杂交组合为材料，研究了生育时期青贮玉米蔗糖合成酶活性与秸秆NDF含量之间的关系。为改善青贮玉米NDF含量，育成低纤维高品质青贮玉米品种提供理论依据。结果表明，不同青贮玉米组合的秸秆NDF含量与蔗糖合成酶活性有关，且秸秆NDF含量与蔗糖合成酶活性成负相关。验证了蔗糖合成酶作为纤维素合成的关键酶，通过将蔗糖分解为UDPG，为纤维素合成提供直接底物的规律。

关键词: 耕层土壤, 耕层土壤, 土壤养分, 寿光

Abstract:

Abstract: To research the relationship of SS (sucrose synthtase) activity of the growth period of corn silage and stalk NDF content of silage corn, 10 silage corn hybrids which have significant differences in stalk NDF content are chose as the experimental material. Our study provides a theoretical basis for improvement of NDF content and cultivating low-fiber and high-quality varieties of corn silage. The results showed, there is a negative correlation between the stalk NDF content and SS activity. All of these are consistent with the hypothesis about SS as a key enzyme in the synthesis of cellulose, just because it provides the substrate for synthesis of cellulose, through decomposing sucrose into UDPG.