| 小麦幼穗器官中蔗糖降解酶的活性与分布 |
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| 引用本文： | 王志敏,王树安,苏宝林.小麦幼穗器官中蔗糖降解酶的活性与分布[J].中国农业大学学报,1995(2):147-151. |
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| 作者姓名： | 王志敏 王树安 苏宝林 |
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| 作者单位： | 北京农业大学植物科学技术学院;100094; |
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| 摘 要： | 小麦开花前的穗中存在三种蔗糖降解酶:转化酶(主要是可溶性酸性转化酶,SAI)、蔗糖合成酶(SS)和蔗糖-蔗糖果糖基转移酶(SST)。在小花器官中 SAI 活性最高,在穗轴和颖片中,SST 活性最高,而 SS 活性仅仅在小花中可测。一穗上不同部位小穗的酶活性不同,中部小穗的酶(SST,SAI,SS)活性明显高于上部和下部小穗。讨论了穗器官蔗糖降解酶活性与糖分代谢及小穗结实性的关系。
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| 关 键 词： | 小麦穗 蔗糖降解酶 |
| 收稿时间： | 1994/10/25 0:00:00 |
Distributions and Activities of Sucrose-Cleaving Enzymes in Young Spike of Wheat |
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| Wang Zhimin Wang Shu''an Su Baolin.Distributions and Activities of Sucrose-Cleaving Enzymes in Young Spike of Wheat[J].Journal of China Agricultural University,1995(2):147-151. |
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| Authors: | Wang Zhimin Wang Shu'an Su Baolin |
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| Institution: | Wang Zhimin Wang Shu'an Su Baolin (College of Agronomy Crop,BAU,Beijing 100094) |
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| Abstract: | Three enzymesinvertase,sucrose synthase(SS)and sucrose:sucrose fructosyl trans- ferase(SST)]which were asociated with sucrose cleavage appeared in young spike of wheat before anthe- sis.SST activity and Soluble acide invertase(SAI)were greatest respectively in the rachis and in the florets of spike,however,SS ativity can be measured only in the florets,The activity levels of these en- zymes were different between different spikelets of the same spike,and it was showed that the middle spikelets had higher s... |
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| Keywords: | wheat spike sucrose-cleaving enzymes |
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