Malate production, sugar metabolism, and redox homeostasis in the leaf growth zone of Rye (Secale cereale) increase stress tolerance to aluminum stress : A biochemical and genome-wide transcriptional study
Copyright © 2023 Elsevier B.V. All rights reserved..
Global soil acidification is increasing, enlarging aluminum (Al) availability in soils, leading to reductions in plant growth. This study investigates the effect of Al stress on the leaf growth zones of Rye (Secale cereale, cv Beira). Kinematic analysis showed that the effect of Al on leaf growth rates was mainly due to a reduced cell production rate in the meristem. Transcriptomic analysis identified 2272 significantly (log2fold > |0.5| FDR < 0.05) differentially expressed genes (DEGs) for Al stress. There was a downregulation in several DEGs associated with photosynthetic processes and an upregulation in genes for heat/light response, and H2O2 production in all leaf zones. DEGs associated with heavy metals and malate transport were increased, particularly, in the meristem. To determine the putative function of these processes in Al tolerance, we performed biochemical analyses comparing the tolerant Beira with an Al sensitive variant RioDeva. Beira showed improved sugar metabolism and redox homeostasis, specifically in the meristem compared to RioDeva. Similarly, a significant increase in malate and citrate production, which are known to aid in Al detoxification in plants, was found in Beira. This suggests that Al tolerance in Rye is linked to its ability for Al exclusion from the leaf meristem.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2024 |
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| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:464 |
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| Enthalten in: |
Journal of hazardous materials - 464(2024) vom: 15. Feb., Seite 132956 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Donnelly, Chase P [VerfasserIn] |
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| Links: |
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| Anmerkungen: |
Date Completed 05.12.2023 Date Revised 06.02.2024 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1016/j.jhazmat.2023.132956 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM364683910 |
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| 100 | 1 | |a Donnelly, Chase P |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Malate production, sugar metabolism, and redox homeostasis in the leaf growth zone of Rye (Secale cereale) increase stress tolerance to aluminum stress |b A biochemical and genome-wide transcriptional study |
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| 520 | |a Copyright © 2023 Elsevier B.V. All rights reserved. | ||
| 520 | |a Global soil acidification is increasing, enlarging aluminum (Al) availability in soils, leading to reductions in plant growth. This study investigates the effect of Al stress on the leaf growth zones of Rye (Secale cereale, cv Beira). Kinematic analysis showed that the effect of Al on leaf growth rates was mainly due to a reduced cell production rate in the meristem. Transcriptomic analysis identified 2272 significantly (log2fold > |0.5| FDR < 0.05) differentially expressed genes (DEGs) for Al stress. There was a downregulation in several DEGs associated with photosynthetic processes and an upregulation in genes for heat/light response, and H2O2 production in all leaf zones. DEGs associated with heavy metals and malate transport were increased, particularly, in the meristem. To determine the putative function of these processes in Al tolerance, we performed biochemical analyses comparing the tolerant Beira with an Al sensitive variant RioDeva. Beira showed improved sugar metabolism and redox homeostasis, specifically in the meristem compared to RioDeva. Similarly, a significant increase in malate and citrate production, which are known to aid in Al detoxification in plants, was found in Beira. This suggests that Al tolerance in Rye is linked to its ability for Al exclusion from the leaf meristem | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Research Support, Non-U.S. Gov't | |
| 650 | 4 | |a Al detoxification | |
| 650 | 4 | |a Al stress | |
| 650 | 4 | |a Growth zones | |
| 650 | 4 | |a Kinematic analysis | |
| 650 | 4 | |a Redox status | |
| 650 | 4 | |a Rye | |
| 650 | 7 | |a Aluminum |2 NLM | |
| 650 | 7 | |a CPD4NFA903 |2 NLM | |
| 650 | 7 | |a malic acid |2 NLM | |
| 650 | 7 | |a 817L1N4CKP |2 NLM | |
| 650 | 7 | |a Malates |2 NLM | |
| 650 | 7 | |a Hydrogen Peroxide |2 NLM | |
| 650 | 7 | |a BBX060AN9V |2 NLM | |
| 650 | 7 | |a Sugars |2 NLM | |
| 700 | 1 | |a De Sousa, Alexandra |e verfasserin |4 aut | |
| 700 | 1 | |a Cuypers, Bart |e verfasserin |4 aut | |
| 700 | 1 | |a Laukens, Kris |e verfasserin |4 aut | |
| 700 | 1 | |a Al-Huqail, Asma A |e verfasserin |4 aut | |
| 700 | 1 | |a Asard, Han |e verfasserin |4 aut | |
| 700 | 1 | |a Beemster, Gerrit T S |e verfasserin |4 aut | |
| 700 | 1 | |a AbdElgawad, Hamada |e verfasserin |4 aut | |
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