| Item type |
デフォルトアイテムタイプ_（フル）(1) |
| 公開日 |
2025-01-14 |
| タイトル |
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|
タイトル |
Comparative analysis of physiological, enzymatic, and genetic responses revealed the differences in salt tolerance between two rice varieties at the seedling stage |
|
言語 |
en |
| 作成者 |
Mekawy, Ahmad Mohammad M.
Assaha, Dekoum V.M.
Jiacheng, Li
Ueda, Akihiro
|
| アクセス権 |
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|
アクセス権 |
embargoed access |
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アクセス権URI |
http://purl.org/coar/access_right/c_f1cf |
| 権利情報 |
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|
言語 |
en |
|
権利情報 |
© 2024. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/ |
| 権利情報 |
|
|
言語 |
en |
|
権利情報 |
This is not the published version. Please cite only the published version. |
| 権利情報 |
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|
言語 |
ja |
|
権利情報 |
この論文は出版社版ではありません。引用の際には出版社版をご確認、ご利用ください。 |
| 主題 |
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言語 |
en |
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主題Scheme |
Other |
|
主題 |
Salt stress |
| 主題 |
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言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Proline accumulation |
| 主題 |
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|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Antioxidant enzymes |
| 主題 |
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言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Gene expression |
| 内容記述 |
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|
内容記述 |
Salt stress remains a global problem affecting agricultural production, and the elucidation of stress tolerance mechanisms in crops, such as rice, can provide essential information to breeders to generate improved cultivars capable of withstanding environmental challenges. Therefore, this study aimed to evaluate the tolerance mechanisms of two rice cultivars with different salinity tolerance. The rice cultivars, Sakha Super 300 (SS300, tolerant) and Blue Bonnet 76 (BB76, sensitive), were subjected to 0 and 100 mM NaCl (control and salt stress, respectively) for 14 days. Subsequently, growth indices (dry weight and plant length), physiological parameters (Na+ and K+ concentrations, secondary metabolites, enzyme activities, and chlorophyll and carotenoid concentrations), and the expression of Na+ and K+ transport-coding genes were determined. The results showed that the dry weight (DW) of SS300 was not significantly altered by salt stress, whereas that of BB76 decreased by 1.8 folds. The leaf Na+ concentration in SS300 (15.3 mg/g DW) was less than that of BB76 (23.7 mg/g DW), whereas the ratio of Na+/K+ was significantly higher in BB76 than in SS300 leaves. The leaf proline concentration of BB76 was 23-fold that of control and 9-fold that of SS300, whereas total flavonoid increased only in the leaves of SS300 (38 % increase). Regarding antioxidant enzyme activities, peroxidase (POD) significantly declined (2.7-fold) in the leaves of BB76 but remained unchanged in SS300. Regarding gene expression, there was 21- and 10-fold upregulation of OsHKT1;5 expression in the roots of SS300 and BB76, respectively, whereas root OsAKT1 and OsHAK7 were induced only in SS300 (2.3 and 2-fold induction, respectively). These results suggest that the susceptibility of BB76 to salt stress is likely attributed to the utilization of more energy for osmolyte synthesis, and reduced antioxidants and Na+ and K+ regulation. |
|
言語 |
en |
| 内容記述 |
|
|
内容記述タイプ |
Other |
|
内容記述 |
AMMM extends his appreciation to the Academy of Scientific Research and Technology (ASRT, Egypt) for funding the Graduation Projects conducted at Laboratory of Plant Nutritional Physiology, Minia University, Egypt. |
|
言語 |
en |
| 出版者 |
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出版者 |
Elsevier |
|
言語 |
en |
| 言語 |
|
|
言語 |
eng |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
journal article |
| 出版タイプ |
|
|
出版タイプ |
AM |
|
出版タイプResource |
http://purl.org/coar/version/c_ab4af688f83e57aa |
| 関連情報 |
|
|
関連タイプ |
isVersionOf |
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|
識別子タイプ |
DOI |
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関連識別子 |
https://doi.org/10.1016/j.sajb.2024.05.023 |
| 助成情報 |
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助成機関名 |
日本学術振興会 |
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言語 |
ja |
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研究課題番号URI |
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20KK0129/ |
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研究課題番号 |
20KK0129 |
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研究課題名 |
タイの塩・アルカリ水田で栽培可能な耐性イネ系統の創出 |
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言語 |
ja |
| 助成情報 |
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助成機関名 |
Japan Society for the Promotion of Science |
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言語 |
en |
|
|
研究課題名 |
タイの塩・アルカリ水田で栽培可能な耐性イネ系統の創出 |
|
|
言語 |
ja |
| 開始ページ |
|
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開始ページ |
145 |
| 書誌情報 |
en : South African Journal of Botany
巻 170,
p. 145-155,
発行日 2024-05-18
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| 旧ID |
56110 |
| 備考 |
The full-text file will be made open to the public on 18 May 2026 in accordance with publisher's 'Terms and Conditions for Self-Archiving' |
SAJB_170_145.pdf (1.1 MB)
