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231225s2020 xx |||||o 00| ||eng c |
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|a 10.1016/j.plaphy.2020.10.005
|2 doi
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|a pubmed25n1055.xml
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|a (PII)S0981-9428(20)30494-0
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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1 |
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|a Duarte, Bernardo
|e verfasserin
|4 aut
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|a Lipid landscape remodelling in Sarcocornia fruticosa green and red physiotypes
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|c 2020
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| 336 |
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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
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|2 rdacarrier
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|a Date Completed 26.01.2021
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|a Date Revised 26.01.2021
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2020 Elsevier Masson SAS. All rights reserved.
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|a Under certain abiotic conditions (elevated irradiance, temperature and sediment salinity) observed mostly during the Mediterranean summer, the halophyte Sarcocornia fruticosa suffers a metabolic shift evidenced by a red coloration, evidencing the presence of two physiotypes (green and red). Previous works indicated that this metabolic shift has severe implications in the primary photochemistry of this species, impairing the light and carbon harvesting. Under stress plants have lower light use efficiencies and are more prone to photoinhibition, and thus this metabolic shift is essential for this species to deal with the high light intensities characteristic from this time of the year. Nevertheless, the fatty acid and lipid remodelling in green and red S. fruticosa physiotypes was not previously evaluated nor its relations with this metabolic shift. The evaluation of the lipid landscape suggests several lipid and fatty acid remodelling when comparing both red and green physiotype, as strategies to overcome stress. The galactolipids of the red physiotype suffer several changes aiming to keep chloroplast membrane structural and functional stability during water stress and can also be related to an improvement of the plants response to osmotic stress. At the phospholipid level, a readjustment of its fatty acid profiles was also observable. This remodelling allows the plants to adjust membrane fluidity the imposed osmotic stress, being this action transversal to choroplastidial, extraplastidial, and involves the action of the different phospholipids. Additionally, neutral lipids (NLs) also appear to play a role in osmotic stress adaptation, with an increase content in C18 fatty acids in the red physiotype. The resulting lipid landscape in both physiotypes presents very specific signatures that can be used as biomarkers to track this kind of metabolic shifts, in future studies with similar species
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|a Journal Article
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|a Halophytes
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|a Lipid and fatty acid remodelling
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|a Membrane adjustment
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|a Osmotic stress
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| 650 |
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|a Fatty Acids
|2 NLM
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| 650 |
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|a Galactolipids
|2 NLM
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| 650 |
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|a Phospholipids
|2 NLM
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| 700 |
1 |
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|a Caçador, Isabel
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Matos, Ana Rita
|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 157(2020) vom: 01. Dez., Seite 128-137
|w (DE-627)NLM098178261
|x 1873-2690
|7 nnas
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|g volume:157
|g year:2020
|g day:01
|g month:12
|g pages:128-137
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|u http://dx.doi.org/10.1016/j.plaphy.2020.10.005
|3 Volltext
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