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231226s2022 xx |||||o 00| ||eng c |
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|a 10.1016/j.plaphy.2022.05.006
|2 doi
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|a pubmed24n1138.xml
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|a (DE-627)NLM341585971
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|a (NLM)35636334
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|a (PII)S0981-9428(22)00217-0
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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 Duran Garzon, Catalina
|e verfasserin
|4 aut
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| 245 |
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|a The maize low-lignin brown midrib3 mutant shows pleiotropic effects on photosynthetic and cell wall metabolisms in response to chilling
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|c 2022
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 08.06.2022
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|a Date Revised 08.06.2022
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2022. Published by Elsevier Masson SAS.
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|a Maize (Zea mays L.) is one of the major cereal crops in the world and is highly sensitive to low temperature. Here, changes in photosynthetic and cell wall metabolisms were investigated during a long chilling exposure in inbred line F2 and a low-lignin near-isogenic brown midrib3 mutant (F2bm3), which has a mutation in the caffeic acid O-methyltransferase (COMT) gene. Results revealed that the plant biomass was reduced, and this was more pronounced in F2bm3. Photosynthesis was altered in both lines with distinct changes in photosynthetic pigment content between F2bm3 and F2, indicating an alternative photoprotection mechanism between lines under chilling. Starch remobilization was observed in F2bm3 while concentrations of sucrose, fructose and starch increased in F2, suggesting a reduced sugar partitioning in F2. The cell wall was altered upon chilling, resulting in changes in the composition of glucuronorabinoxylan and a reduced cellulose level in F2. Chilling shifted lignin subunit composition in F2bm3 mutant to a higher proportion of p-hydroxyphenyl (H) units, whereas it resulted in lignin with a higher proportion of syringyl (S) residues in F2. On average, the total cell wall ferulic acid (FA) content increased in both genotypes, with an increase in ether-linked FA in F2bm3, suggesting a greater degree of cross-linking to lignin. The reinforcement of the cell wall with lignin enriched in H-units and a higher concentration in cell-wall-bound FA observed in F2bm3 as a response to chilling, could be a strategy to protect the photosystems
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|a Journal Article
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|a Caffeic acid O-Methyltransferase
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|a Hydroxycinnamic acid
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|a Non-structural sugars
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4 |
|a Photosynthetic pigments
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4 |
|a Zea mays L
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| 650 |
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4 |
|a bm3
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|a Starch
|2 NLM
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| 650 |
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|a 9005-25-8
|2 NLM
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| 650 |
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|a Lignin
|2 NLM
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| 650 |
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7 |
|a 9005-53-2
|2 NLM
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| 700 |
1 |
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|a Lequart, Michelle
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Charras, Quentin
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Fournet, Françoise
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Bellenger, Léo
|e verfasserin
|4 aut
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1 |
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|a Sellier-Richard, Hélène
|e verfasserin
|4 aut
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1 |
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|a Giauffret, Catherine
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Vermerris, Wilfred
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Domon, Jean-Marc
|e verfasserin
|4 aut
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| 700 |
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|a Rayon, Catherine
|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 184(2022) vom: 01. Aug., Seite 75-86
|w (DE-627)NLM098178261
|x 1873-2690
|7 nnns
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| 773 |
1 |
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|g volume:184
|g year:2022
|g day:01
|g month:08
|g pages:75-86
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| 856 |
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|u http://dx.doi.org/10.1016/j.plaphy.2022.05.006
|3 Volltext
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|d 184
|j 2022
|b 01
|c 08
|h 75-86
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