通过选择性育种产生的高果糖大麦品种可能会改变β-葡萄糖和氨基胺分子结构
Shishanthi Jayarathna1, Yunkai Jin2, Gleb Dotsenko1
1Department of Molecular Sciences, BioCenter, Swedish University of Agricultural Sciences, P.O. Box 7015, SE-750 07 Uppsala, Sweden.
Carbohydrate polymers
|June 15, 2023
概括
为提高果含量而培育的新大麦品种也显示出增加的β-葡萄糖水平和改变的粉结构. 这种育种策略影响了大麦谷物的关键成分,为改善营养特征提供了潜力.
科学领域:
- 农业科学 农业科学
- 植物育种 植物育种
- 食品科学 食品科学 食品科学
背景情况:
- 大麦是一种重要的谷物作物,具有重要的营养价值.
- 果糖和β-葡萄糖是大麦中重要的可溶性纤维,具有健康益处.
- 了解育种策略对谷物成分的影响对于作物改进至关重要.
研究的目的:
- 评估一种向果糖合成的育种策略对大麦的氨基波克和β-葡萄糖含量和结构的影响.
- 为了比较新的大麦线与其家长和参考线.
主要方法:
- 分析了六个杂交的大麦品种线,父母线和一个参考线 (古斯塔夫).
- 果糖,β-葡萄糖和粉含量的量测量.
- 确定烯胺分子结构和β-葡萄糖结构单元.
主要成果:
- 与基准线相比,新的大麦线表现出明显更高的果糖 (高达8.6%) 和β-葡萄糖 (高达12%) 含量.
- 富ructan 合成活性较低的菌株含有较高的粉含量,较小的氨基胺构建块和较小的β-葡萄糖结构单元.
- 低粉含量与高粉素,果糖和β-葡萄糖含量以及较大的粉素构建块正相关.
结论:
- 旨在增强果糖合成的育种策略也有利地改变了大麦中的β-葡萄糖含量和粉分子结构.
- 这些发现表明,育种策略对大麦谷物质量特征产生类效应.
- 开发的大麦生产线代表了提高谷物作物的营养质量的宝贵资源.
更多相关视频
10:29Measuring Gene Expression in Bombarded Barley Aleurone Layers with Increased Throughput
Published on: March 30, 2018
6.6K
09:21Inhibition of Aspergillus flavus Growth and Aflatoxin Production in Transgenic Maize Expressing the α-amylase Inhibitor from Lablab purpureus L.
Published on: February 15, 2019
10.6K
相关概念视频
Bioreactor Controls-III
Strain improvement is a foundational strategy in industrial microbiology aimed at maximizing microbial productivity, particularly because natural isolates typically yield commercially valuable products in very low concentrations. Although optimizing the culture medium and environmental conditions can improve yields, these adjustments are inherently limited by the organism’s genetic potential. As a result, the focus shifts toward genetic modifications to enhance biosynthetic capacity. The...
Production of Alcohol
Continuous fermentation is a key strategy in industrial ethanol production, particularly when efficiency, scalability, and high yields are essential. This approach allows for uninterrupted operation and optimized resource utilization. The primary feedstock, corn starch, undergoes enzymatic hydrolysis facilitated by α-amylase and glucoamylase. These enzymes break down the starch into fermentable sugars such as glucose, which are readily assimilated by fermentative microorganisms.Fermentation...
