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Differences of Starch Granule Distribution in Grains from Different Spikelet Positions in Winter Wheat
Wheat starch development is a complex process and is markedly difference by changes in spikelet spatial position. The present study deals with endosperm starch granule distribution and spatial position during filling development. The study was conducted with pure starch isolated from wheat (Triticum...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Public Library of Science
2014
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4267774/ https://www.ncbi.nlm.nih.gov/pubmed/25514032 http://dx.doi.org/10.1371/journal.pone.0114342 |
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author | Yu, Anling Li, Yong Ni, Yingli Yang, Weibing Yang, Dongqing Cui, Zhengyong Wang, Zhenlin Yin, Yanping |
author_facet | Yu, Anling Li, Yong Ni, Yingli Yang, Weibing Yang, Dongqing Cui, Zhengyong Wang, Zhenlin Yin, Yanping |
author_sort | Yu, Anling |
collection | PubMed |
description | Wheat starch development is a complex process and is markedly difference by changes in spikelet spatial position. The present study deals with endosperm starch granule distribution and spatial position during filling development. The study was conducted with pure starch isolated from wheat (Triticum aestivum L.), Jimai20 and Shannong1391, at 7–35 days after anthesis (DAA). The results showed that grain number, spikelet weight and grain weight per spikelet in different spatial position showed parabolic changes. Upper spikelets had highest starch and amylose content followed by basal spikelets, then middle spikelets. The paper also suggested the volume percents of B-type and A-type granule in grain of middle spikelets were remarkably higher and lower than those of basal and upper spikelets, respectively. However, no significant difference occurred in the number percents of the two type granule. The ratio of amylase to amylopectin was positively correlated with the volume proportion of 22.8–42.8 µm, but was negatively related to the volume proportion of <9.9 µm. The results indicated that the formation and distribution of starch granules were affected significantly by spikelet position, and grains at upper and basal spikelet had the potential of increasing grain weight through increasing the volume of B-type granules. |
format | Online Article Text |
id | pubmed-4267774 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2014 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-42677742014-12-26 Differences of Starch Granule Distribution in Grains from Different Spikelet Positions in Winter Wheat Yu, Anling Li, Yong Ni, Yingli Yang, Weibing Yang, Dongqing Cui, Zhengyong Wang, Zhenlin Yin, Yanping PLoS One Research Article Wheat starch development is a complex process and is markedly difference by changes in spikelet spatial position. The present study deals with endosperm starch granule distribution and spatial position during filling development. The study was conducted with pure starch isolated from wheat (Triticum aestivum L.), Jimai20 and Shannong1391, at 7–35 days after anthesis (DAA). The results showed that grain number, spikelet weight and grain weight per spikelet in different spatial position showed parabolic changes. Upper spikelets had highest starch and amylose content followed by basal spikelets, then middle spikelets. The paper also suggested the volume percents of B-type and A-type granule in grain of middle spikelets were remarkably higher and lower than those of basal and upper spikelets, respectively. However, no significant difference occurred in the number percents of the two type granule. The ratio of amylase to amylopectin was positively correlated with the volume proportion of 22.8–42.8 µm, but was negatively related to the volume proportion of <9.9 µm. The results indicated that the formation and distribution of starch granules were affected significantly by spikelet position, and grains at upper and basal spikelet had the potential of increasing grain weight through increasing the volume of B-type granules. Public Library of Science 2014-12-16 /pmc/articles/PMC4267774/ /pubmed/25514032 http://dx.doi.org/10.1371/journal.pone.0114342 Text en © 2014 Yu et al http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited. |
spellingShingle | Research Article Yu, Anling Li, Yong Ni, Yingli Yang, Weibing Yang, Dongqing Cui, Zhengyong Wang, Zhenlin Yin, Yanping Differences of Starch Granule Distribution in Grains from Different Spikelet Positions in Winter Wheat |
title | Differences of Starch Granule Distribution in Grains from Different Spikelet Positions in Winter Wheat |
title_full | Differences of Starch Granule Distribution in Grains from Different Spikelet Positions in Winter Wheat |
title_fullStr | Differences of Starch Granule Distribution in Grains from Different Spikelet Positions in Winter Wheat |
title_full_unstemmed | Differences of Starch Granule Distribution in Grains from Different Spikelet Positions in Winter Wheat |
title_short | Differences of Starch Granule Distribution in Grains from Different Spikelet Positions in Winter Wheat |
title_sort | differences of starch granule distribution in grains from different spikelet positions in winter wheat |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4267774/ https://www.ncbi.nlm.nih.gov/pubmed/25514032 http://dx.doi.org/10.1371/journal.pone.0114342 |
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