OsALB3 Is Required for Chloroplast Development by Promoting the Accumulation of Light-Harvesting Chlorophyll-Binding Proteins in Rice
ALBINO3 (ALB3) protein functions in the insertion and assembly of thylakoid membrane protein complexes and plays a critical role for chloroplast development in Arabidopsis. However, the biological function of ALB3 homologs in rice, OsALB3, remains elusive. Here, we identified a rice mutant, yellow leaf and lethal1 (yll1), that displayed yellow leaves and died at the seedling stage. The content of chlorophyll in yll1, compared with wild type, was significantly decreased. Transmission electron microscopy observation shows that the chloroplast of yll1 lacks thylakoid membranes. The causal mutation, which is located in OsALB3, was isolated by Mutmap+ combined with a simple mutation filtering process. Knockout of OsALB3 leads to yellow leaves and seedling lethality, mimicking the phenotype of yll1. OsALB3 is widely expressed and OsALB3 is chloroplast-localized. Moreover, the content of light-harvesting chlorophyll-binding proteins in yll1 is reduced. Together, our study demonstrated the essential role of OsALB3 in chloroplast development and provided clues to the possible conserved molecular function of ALB3 in rice.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2023 |
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| Erschienen: |
2023 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:12 |
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| Enthalten in: |
Plants (Basel, Switzerland) - 12(2023), 23 vom: 28. Nov. |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Zhang, Chao [VerfasserIn] |
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| Links: |
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| Themen: |
Chloroplast development |
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| Anmerkungen: |
Date Revised 09.12.2023 published: Electronic Citation Status PubMed-not-MEDLINE |
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| doi: |
10.3390/plants12234003 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
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| 500 | |a Citation Status PubMed-not-MEDLINE | ||
| 520 | |a ALBINO3 (ALB3) protein functions in the insertion and assembly of thylakoid membrane protein complexes and plays a critical role for chloroplast development in Arabidopsis. However, the biological function of ALB3 homologs in rice, OsALB3, remains elusive. Here, we identified a rice mutant, yellow leaf and lethal1 (yll1), that displayed yellow leaves and died at the seedling stage. The content of chlorophyll in yll1, compared with wild type, was significantly decreased. Transmission electron microscopy observation shows that the chloroplast of yll1 lacks thylakoid membranes. The causal mutation, which is located in OsALB3, was isolated by Mutmap+ combined with a simple mutation filtering process. Knockout of OsALB3 leads to yellow leaves and seedling lethality, mimicking the phenotype of yll1. OsALB3 is widely expressed and OsALB3 is chloroplast-localized. Moreover, the content of light-harvesting chlorophyll-binding proteins in yll1 is reduced. Together, our study demonstrated the essential role of OsALB3 in chloroplast development and provided clues to the possible conserved molecular function of ALB3 in rice | ||
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| 650 | 4 | |a OsALB3 | |
| 650 | 4 | |a chloroplast development | |
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| 650 | 4 | |a thylakoid membrane | |
| 700 | 1 | |a Mao, Xinchen |e verfasserin |4 aut | |
| 700 | 1 | |a Feng, Xiaoxiao |e verfasserin |4 aut | |
| 700 | 1 | |a Sun, Yali |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Zirui |e verfasserin |4 aut | |
| 700 | 1 | |a Tang, Jiaqi |e verfasserin |4 aut | |
| 700 | 1 | |a Yu, Hengxiu |e verfasserin |4 aut | |
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