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231226s2023 xx |||||o 00| ||eng c |
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|a 10.1016/j.plaphy.2023.108054
|2 doi
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|a DE-627
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|a eng
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|a Zou, Yu
|e verfasserin
|4 aut
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|a OsPML2, a chloroplast envelope localized transporter is involved in manganese homeostasis in rice
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|c 2023
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Revised 21.10.2023
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|a published: Print-Electronic
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|a Citation Status Publisher
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|a Copyright © 2023 Elsevier Masson SAS. All rights reserved.
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|a Manganese (Mn), a vital element, plays crucial roles in various biochemical and physiological processes by serving as an essential cofactor for numerous enzymes and acting as a catalytically active metal within biological clusters. In this study, we investigate the role of PHOTOSYNTHESIS-AFFECTED MUTANT 71-LIKE 2 (OsPML2), a member of the UNCHARACTERIZED PROTEIN FAMILY 0016 (UPF0016) family, in regulating Mn homeostasis in rice. OsPML2 was highly expressed in young leaves, ovaries, and stigmas. Cross sections from young leaves revealed that OsPML2 was mainly expressed in the phloem region and mesophyll cells. Furthermore, heterologous expression of OsPML2 restored the growth of Mn uptake-defective yeast strain Δsmf1 under Mn-limited conditions. Subcellular localization analysis demonstrated that OsPML2 was specifically localized in the chloroplast envelope. Knockdown of OsPML2 resulted in reduced chloroplast Mn content, significantly affecting plant growth under Mn deficiency. Furthermore, analysis of isolated thylakoid membranes using blue native gels indicated a compromised accumulation of photosystem II (PSII) complexes in OsPML2 knockdown lines. Additionally, grain yield, grain length, and width were significantly reduced in OsPML2 knockdown plants. Collectively, our findings provide insights into the transport function of OsPML2, which facilitates Mn transport from the cytosol to chloroplast stroma and influences the accumulation of PSII complexes in rice
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|a Journal Article
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|a Chloroplast
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|a Envelope
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|a Manganese
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|a Photosynthesis
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|a Rice
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|a Transporter
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|a Xu, Ending
|e verfasserin
|4 aut
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|a Fan, Ye
|e verfasserin
|4 aut
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|a Zhang, Peijiang
|e verfasserin
|4 aut
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|a Zhang, Wei
|e verfasserin
|4 aut
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| 700 |
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|a Chen, Xi
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Plant physiology and biochemistry : PPB
|d 1991
|g 203(2023) vom: 15. Okt., Seite 108054
|w (DE-627)NLM098178261
|x 1873-2690
|7 nnas
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| 773 |
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|g volume:203
|g year:2023
|g day:15
|g month:10
|g pages:108054
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|u http://dx.doi.org/10.1016/j.plaphy.2023.108054
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