フルテキストファイル
著者
Itam, Michael United Graduate School of Agricultural Sciences, Tottori University
Abdelrahman, Mostafa Arid Land Research Center, Tottori University / Botany Department, Faculty of Science, Aswan University
山崎 裕司 Arid Land Research Center, Tottori University 研究者総覧 KAKEN
Mega, Ryosuke Graduate School of Sciences and Technology for Innovation, Yamaguchi University
Gorafi, Yasir Arid Land Research Center, Tottori University / Wheat Research Program, Agricultural Research Corporation
明石 欣也 Faculty of Agriculture, Tottori University 研究者総覧 KAKEN
辻本 壽 Arid Land Research Center, Tottori University 研究者総覧 KAKEN
キーワード
antioxidants
drought resistance
metabolomics
osmolytes
triose phosphate utilization
wheat synthetic derivatives
抄録
With the aim of providing genetic materials for breeding drought-resistant wheat varieties, the physiological and metabolic plasticity of three drought-resistant wheat multiple synthetic derivative lines (MSDLs) and their backcross parent “Norin 61” (N61) were evaluated in response to drought stress. The results indicated that the D-genome introgressions from Aegilops tauschii into the MDSLs improved their drought-adaptive traits. Specifically, MNH5 and MSD345 showed higher photosynthesis rates and triose phosphate utilization than N61 under control conditions, resulting in greater accumulation of glucose and sucrose in the shoots. However, under drought stress, MNH5 and MSD345 had higher intrinsic water use efficiency than MSD53 and N61. The total antioxidant capacity and superoxide dismutase activity increased in all three MSDLs, whereas no significant changes were found in N61 in response to drought stress. Metabolome analysis identified six common drought-induced metabolites in all of the investigated genotypes. However, four metabolites (adenine, gamma aminobutyric acid, histidine, and putrescine) each specifically accumulated in an MSDL in response to drought stress, suggesting that these metabolites are important for MSDL drought resistance. In conclusion, MNH5 and MSD345 showed better adaptive responses to drought stress than MSD53 and N61, suggesting that these two MSDLs could be explored for breeding drought-resistant wheat lines.
出版者
MDPI
資料タイプ
学術雑誌論文
外部リンク
EISSN
20734395
掲載誌名
AGRONOMY-BASEL
10
10
開始ページ
1588
発行日
2020-10
出版者DOI
著者版フラグ
出版社版
著作権表記
(C) 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
掲載情報
Itam Michael, Abdelrahman Mostafa, Yamasaki Yuji, et al. Aegilops tauschii Introgressions Improve Physio-Biochemical Traits and Metabolite Plasticity in Bread Wheat under Drought Stress. AGRONOMY-BASEL. 2020. 10(10). doi:10.3390/agronomy10101588
部局名
附属教育研究施設
言語
英語
Web of Science Key ut
WOS:000584212900001