Influence of cultivar and environment on water-soluble and water-insoluble arabinoxylans in soft wheat
Influence of cultivar and environment on water-soluble and water-insoluble arabinoxylans in soft wheat
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DOI：
10.1094/cc-83-0617
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发表时间：
2006-11-01
期刊：
影响因子：
2.4
通讯作者：
Morris, C. F.
中科院分区：
文献类型：
--
作者：
Finnie, S. M.;Bettge, A. D.;Morris, C. F.
阿拉伯木聚糖是在小麦籽粒中作为次要成分发现的亲水性非淀粉多糖。阿拉伯木聚糖可以通过氢键与大量的水结合，形成氧化凝胶。这些特性是影响小麦最终使用品质的重要因素。摘要本研究旨在探讨小麦品种和生长环境对面粉和全麦粉中水溶性（WS-AX）、不水溶性（WI-AX）和总阿拉伯木聚糖（to - ax）含量变化的影响。本研究包括7个春季软白小麦品种和20个冬季软白小麦品种，分别生长在10个和12个环境中（每一个均匀分布在两个作物年）。采用单因素方差分析（ANOVA）和多因素典型方差分析（MANOVA）评估变异源。阿拉伯木聚糖含量和绝对数量（木糖当量）在两个品种样品组（春季和冬季）之间的变化相似，品种和环境都是差异的重要来源。栽培-环境相互作用相对不重要。结果表明，阿拉伯木聚糖含量的变化主要受品种的影响，其次受环境的影响。在阿拉伯木聚糖组分中，WS-AX含量主要受基因型的影响，WI-AX含量受环境的影响更大。
Arabinoxylans are hydrophilic nonstarch polysaccharides found in wheat grain as minor constituents. Arabinoxylans can associate with large amounts of water through hydrogen bonding and can form oxidative gels. These properties are important factors in end-use quality of wheat. The objective of this study was to delineate the influence of wheat cultivar and growing environment on variation in water-soluble (WS-AX), water-insoluble (WI-AX), and total (TO-AX) arabinoxylan contents of flour and whole grain meal. This study included seven spring and 20 winter soft white wheat cultivars grown in 10 and 12 environments, respectively (each evenly split over two crop years). Univariate analysis of variance (ANOVA) and multivariate analysis of variance with canonical analysis (MANOVA) was used to evaluate sources of variation. Variation in arabinoxylan contents and absolute amounts (xylose equivalents) among the two cultivar sample sets (spring and winter) was similar, and both cultivar and environment were significant sources of variation. The cultivar-by-environment interaction was relatively unimportant. Results indicate that the variation in arabinoxylan content is primarily influenced by cultivar and secondarily influenced by environment. Within arabinoxylan fractions, WS-AX content is primarily influenced by genotype, while WI-AX content is more greatly influenced by the environment.