Characterization of starch in Aegilops species
Characterization of starch in Aegilops species
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DOI：
10.1094/cchem.2000.77.4.445
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发表时间：
2000-07-01
期刊：
影响因子：
2.4
通讯作者：
Sarker, R
中科院分区：
文献类型：
--
作者：
Stoddard, FL;Sarker, R
对山羊草属20个种99份材料和六倍体小麦200份材料的淀粉进行了提取和纯化。通过碘染色和在535和620 nm处的吸光度测定直链淀粉含量。通过激光散射测定粒度分布。山羊草属种质的直链淀粉含量没有超过驯化小麦的极端值。总体上，山羊草种的小颗粒含量低于六倍体小麦。直链淀粉含量与粒径分布无相关性。山羊草属的一些物种可能是六倍体小麦低淀粉B型颗粒的有用来源，如果性状可以转移，但它们不太可能有助于直链淀粉含量的进一步变化。
Starch was extracted and cleaned from 99 accessions of 20 species of Aegilops and also from 200 accessions of hexaploid wheat. Amylose content was determined by iodine staining and absorbance at 535 and 620 nm. Particle-size distribution was determined by laser scattering. The amylose content of the Aegilops accessions did not exceed the extremes found in domesticated wheat. Aegilops species, on the whole, had a lower content of small particles than the hexaploid wheats. There was no correlation between amylose content and particle-size distribution. Some species of Aegilops may be useful sources of low-starch B-type granules for hexaploid wheat, if the trait can be transferred, but they are unlikely to contribute to further variation in amylose content.