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241028s2024 xx |||||o 00| ||eng c |
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|a 10.1016/j.plantsci.2024.112307
|2 doi
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|a pubmed24n1588.xml
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|a eng
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|a Wang, Min
|e verfasserin
|4 aut
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|a Functional characterization of chlorophyll b reductase NON-YELLOW COLORING 1 in Medicago truncatula
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|c 2024
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|a Text
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|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Revised 01.11.2024
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|a published: Print-Electronic
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|a Citation Status Publisher
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|a Copyright © 2024 Elsevier B.V. All rights reserved.
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|a Chlorophyll degradation is a characteristic process of leaf senescence. Two mutant lines, which showed green leaves and seeds during senescence, were identified by screening a Tnt-1 retrotransposon-tagged population of Medicago truncatula. Genetic and molecular analyses indicated that the mutated gene is NON-YELLOW COLORING 1 (MtNYC1) in M. truncatula. MtNYC1 encoded a chlorophyll b reductase, characterized by three transmembrane domains and a catalytic site (Y***K). Our investigation further identified three splicing variants of MtNYC1, encoding a full-length protein (MtNYC1A) and two truncated proteins (MtNYC1B, MtNYC1C). Genetic evidence indicated that the catalytic site and the third transmembrane domain were critical domains for chlorophyll b reductase. The coordinated action of three splicing variants plays a pivotal role in the degradation of chlorophyll during the senescence of leaves. This discovery provides precise target sites for the development of stay-green legume cultivars
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|a Journal Article
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|a Alternative splicing
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|a Chlorophyll b reductase
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|a Leaf senescence
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|a Medicago truncatula
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|a NYC1
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|a Seed maturation
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|a Stay-green
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|a Hong, Limei
|e verfasserin
|4 aut
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|a Zhang, Weizhen
|e verfasserin
|4 aut
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|a Xu, Yiteng
|e verfasserin
|4 aut
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|a Yuan, Feng
|e verfasserin
|4 aut
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|a Zhou, Chuanen
|e verfasserin
|4 aut
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|a Hou, Chunyan
|e verfasserin
|4 aut
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| 700 |
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|a Han, Lu
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Plant science : an international journal of experimental plant biology
|d 1985
|g 350(2024) vom: 24. Okt., Seite 112307
|w (DE-627)NLM098174193
|x 1873-2259
|7 nnns
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|g volume:350
|g year:2024
|g day:24
|g month:10
|g pages:112307
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|u http://dx.doi.org/10.1016/j.plantsci.2024.112307
|3 Volltext
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