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Comparison of Structural and Functional Properties of Wheat Starch Under Different Soil Drought Conditions
Drought influences cereal crop yield and quality. However, little is known about changes in the structural and functional properties of wheat starch under soil drought conditions. In this study, two wheat cultivars were subjected to well-watered (WW), moderate soil-drought (MD), and severe soil-drou...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5615046/ https://www.ncbi.nlm.nih.gov/pubmed/28951617 http://dx.doi.org/10.1038/s41598-017-10802-3 |
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author | Zhang, Weiyang Gu, Junfei Wang, Zhiqin Wei, Cunxu Yang, Jianchang Zhang, Jianhua |
author_facet | Zhang, Weiyang Gu, Junfei Wang, Zhiqin Wei, Cunxu Yang, Jianchang Zhang, Jianhua |
author_sort | Zhang, Weiyang |
collection | PubMed |
description | Drought influences cereal crop yield and quality. However, little is known about changes in the structural and functional properties of wheat starch under soil drought conditions. In this study, two wheat cultivars were subjected to well-watered (WW), moderate soil-drought (MD), and severe soil-drought (SD) from 7 tillers in the main stem to maturity. The structural and functional properties of the resultant endosperm starch were investigated. In comparison with WW soil, the MD increased starch accumulation in grains, the proportion of large starch granules, amylose and amylopectin long branch chain contents, and average amylopectin branch chain length, which were accompanied by the increase in activities of granule bound starch synthase and soluble starch synthase. MD treated-starch had a lower gelatinization enthalpy, and swelling power, but a higher gelatinization temperature, retrogradation enthalpy, and retrogradation percentage when compared to WW conditions. The MD also increased starch resistance to acid hydrolysis, amylase hydrolysis, and in vitro digestion. The SD had the opposite effects to the MD in all cases. The results suggest that soil drought more severely affects amylose synthesis than amylopectin synthesis in wheat grains, and moderate soil-drought improves molecular structure and functional properties of the starch. |
format | Online Article Text |
id | pubmed-5615046 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-56150462017-10-11 Comparison of Structural and Functional Properties of Wheat Starch Under Different Soil Drought Conditions Zhang, Weiyang Gu, Junfei Wang, Zhiqin Wei, Cunxu Yang, Jianchang Zhang, Jianhua Sci Rep Article Drought influences cereal crop yield and quality. However, little is known about changes in the structural and functional properties of wheat starch under soil drought conditions. In this study, two wheat cultivars were subjected to well-watered (WW), moderate soil-drought (MD), and severe soil-drought (SD) from 7 tillers in the main stem to maturity. The structural and functional properties of the resultant endosperm starch were investigated. In comparison with WW soil, the MD increased starch accumulation in grains, the proportion of large starch granules, amylose and amylopectin long branch chain contents, and average amylopectin branch chain length, which were accompanied by the increase in activities of granule bound starch synthase and soluble starch synthase. MD treated-starch had a lower gelatinization enthalpy, and swelling power, but a higher gelatinization temperature, retrogradation enthalpy, and retrogradation percentage when compared to WW conditions. The MD also increased starch resistance to acid hydrolysis, amylase hydrolysis, and in vitro digestion. The SD had the opposite effects to the MD in all cases. The results suggest that soil drought more severely affects amylose synthesis than amylopectin synthesis in wheat grains, and moderate soil-drought improves molecular structure and functional properties of the starch. Nature Publishing Group UK 2017-09-26 /pmc/articles/PMC5615046/ /pubmed/28951617 http://dx.doi.org/10.1038/s41598-017-10802-3 Text en © The Author(s) 2017 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Zhang, Weiyang Gu, Junfei Wang, Zhiqin Wei, Cunxu Yang, Jianchang Zhang, Jianhua Comparison of Structural and Functional Properties of Wheat Starch Under Different Soil Drought Conditions |
title | Comparison of Structural and Functional Properties of Wheat Starch Under Different Soil Drought Conditions |
title_full | Comparison of Structural and Functional Properties of Wheat Starch Under Different Soil Drought Conditions |
title_fullStr | Comparison of Structural and Functional Properties of Wheat Starch Under Different Soil Drought Conditions |
title_full_unstemmed | Comparison of Structural and Functional Properties of Wheat Starch Under Different Soil Drought Conditions |
title_short | Comparison of Structural and Functional Properties of Wheat Starch Under Different Soil Drought Conditions |
title_sort | comparison of structural and functional properties of wheat starch under different soil drought conditions |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5615046/ https://www.ncbi.nlm.nih.gov/pubmed/28951617 http://dx.doi.org/10.1038/s41598-017-10802-3 |
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