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231225s2021 xx |||||o 00| ||eng c |
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|a 10.1093/jxb/erab059
|2 doi
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|a pubmed24n1071.xml
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|a (DE-627)NLM321320069
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|a (NLM)33571996
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|a DE-627
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|a eng
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|a Li, Qin
|e verfasserin
|4 aut
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|a A chlorophyll a oxygenase 1 gene ZmCAO1 contributes to grain yield and waterlogging tolerance in maize
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|c 2021
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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
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|2 rdacarrier
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|a Date Completed 21.05.2021
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|a Date Revised 31.05.2022
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|a published: Print
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|a Citation Status MEDLINE
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|a © The Author(s) 2021. Published by Oxford University Press on behalf of the Society for Experimental Biology. All rights reserved. For permissions, please email: journals.permissionsoup.com.
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|a Chlorophylls function in photosynthesis, and are critical to plant developmental processes and responses to environmental stimuli. Chlorophyll b is synthesized from chlorophyll a by chlorophyll a oxygenase (CAO). Here, we characterize a yellow-green leaf (ygl) mutant and identify the causal gene which encodes a chlorophyll a oxygenase in maize (ZmCAO1). A 51 bp Popin transposon insertion in ZmCAO1 strongly disrupts its transcription. Low enzyme activity of ZmCAO1 leads to reduced concentrations of chlorophyll a and chlorophyll b, resulting in the yellow-green leaf phenotype of the ygl mutant. The net photosynthetic rate, stomatal conductance, and transpiration rate are decreased in the ygl mutant, while concentrations of δ-aminolevulinic acid (ALA), porphobilinogen (PBG) and protochlorophyllide (Pchlide) are increased. In addition, a ZmCAO1 mutation results in down-regulation of key photosynthetic genes, limits photosynthetic assimilation, and reduces plant height, ear size, kernel weight, and grain yield. Furthermore, the zmcao1 mutant shows enhanced reactive oxygen species production leading to sensitivity to waterlogging. These results demonstrate the pleiotropy of ZmCAO1 function in photosynthesis, grain yield, and waterlogging tolerance in maize
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Chlorophyll a oxygenase
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|a chlorophyll b
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|a grain yield
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|a maize (Zea mays L.)
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|a waterlogging
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|a yellow-green leaf
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|a Plant Proteins
|2 NLM
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|a Chlorophyll
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|a 1406-65-1
|2 NLM
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|a chlorophyll b
|2 NLM
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|a 5712ZB110R
|2 NLM
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|a Oxygenases
|2 NLM
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|a EC 1.13.-
|2 NLM
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|a chlorophyll a oxygenase
|2 NLM
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|a EC 1.13.12.-
|2 NLM
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|a Chlorophyll A
|2 NLM
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|a YF5Q9EJC8Y
|2 NLM
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| 700 |
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|a Zhou, Shuangzhen
|e verfasserin
|4 aut
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|a Liu, Wenyu
|e verfasserin
|4 aut
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|a Zhai, Zhensheng
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|a Pan, Yitian
|e verfasserin
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|a Liu, Changchang
|e verfasserin
|4 aut
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|a Chern, Mawsheng
|e verfasserin
|4 aut
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|a Wang, Hongwei
|e verfasserin
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|a Huang, Min
|e verfasserin
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|a Zhang, Zuxin
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|a Tang, Jihua
|e verfasserin
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|a Du, Hewei
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of experimental botany
|d 1985
|g 72(2021), 8 vom: 02. Apr., Seite 3155-3167
|w (DE-627)NLM098182706
|x 1460-2431
|7 nnns
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| 773 |
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|g volume:72
|g year:2021
|g number:8
|g day:02
|g month:04
|g pages:3155-3167
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|u http://dx.doi.org/10.1093/jxb/erab059
|3 Volltext
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