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231225s2017 xx |||||o 00| ||eng c |
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|a 10.1093/jxb/erx332
|2 doi
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|a pubmed24n0923.xml
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|a (DE-627)NLM277142881
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|a (NLM)29045742
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a Lv, Yusong
|e verfasserin
|4 aut
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|a White Leaf and Panicle 2, encoding a PEP-associated protein, is required for chloroplast biogenesis under heat stress in rice
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|c 2017
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 05.07.2018
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|a Date Revised 13.11.2018
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|a published: Print
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|a Citation Status MEDLINE
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|a © The Author 2017. Published by Oxford University Press on behalf of the Society for Experimental Biology.
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|a The plastid-encoded RNA polymerase (PEP) plays an important role in the transcription machinery of mature chloroplasts, yet details of its function remain elusive in rice. Here, we identified a novel PEP-associated protein (PAP), WLP2, based on its two allelic white leaf and panicle mutants, wlp2s and wlp2w. The two mutants were albino lethal at high temperatures and showed decreased chlorophyll accumulation, abnormal chloroplast ultrastructure, and attenuated photosynthetic activity. Map-based cloning suggested that WLP2 encodes a putative pfkB-type carbohydrate kinase family protein, which is homologous to fructokinase-like 1 (AtFLN1) in Arabidopsis. WLP2 is mainly expressed in green tissues and its protein localizes in chloroplasts. Expression levels of PEP-encoded genes, chloroplast development genes and photosynthesis-related genes were compromised in wlp2 mutants, indicating that WLP2 is essential for normal chloroplast biogenesis. Moreover, WLP2 and its paralog OsFLN2 can physically interact with thioredoxin OsTRXz to form a TRX-FLN regulatory module, which not only regulates transcription of the PEP-encoded genes but also maintains the redox balance in chloroplasts under heat stress. Furthermore, the wlp2w mutant gene represents a potential advantage in enhancing seed purity and high-throughput breeding. Our results strongly indicate that WLP2 protects chloroplast development from heat stress via a TRX-FLN regulatory module in rice
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|a Journal Article
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|a PEP-associated protein
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|a WLP2
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|a White Leaf and Panicle 2
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|a chloroplast biogenesis
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|a heat stress
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|a redox balance
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|a rice
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|a Arabidopsis Proteins
|2 NLM
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|a Plant Proteins
|2 NLM
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|a Chlorophyll
|2 NLM
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|a 1406-65-1
|2 NLM
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|a Thioredoxins
|2 NLM
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|a 52500-60-4
|2 NLM
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|a FLN1 protein, Arabidopsis
|2 NLM
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|a EC 2.7.1.-
|2 NLM
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|a Phosphotransferases (Alcohol Group Acceptor)
|2 NLM
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|a EC 2.7.1.-
|2 NLM
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|a DNA-Directed RNA Polymerases
|2 NLM
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|a EC 2.7.7.6
|2 NLM
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| 700 |
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|a Shao, Gaoneng
|e verfasserin
|4 aut
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|a Qiu, Jiehua
|e verfasserin
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|a Jiao, Guiai
|e verfasserin
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|a Sheng, Zhonghua
|e verfasserin
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|a Xie, Lihong
|e verfasserin
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|a Wu, Yawen
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|a Tang, Shaoqing
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|a Wei, Xiangjin
|e verfasserin
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|a Hu, Peisong
|e verfasserin
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| 773 |
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|i Enthalten in
|t Journal of experimental botany
|d 1985
|g 68(2017), 18 vom: 02. Nov., Seite 5147-5160
|w (DE-627)NLM098182706
|x 1460-2431
|7 nnns
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| 773 |
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|g volume:68
|g year:2017
|g number:18
|g day:02
|g month:11
|g pages:5147-5160
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|u http://dx.doi.org/10.1093/jxb/erx332
|3 Volltext
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