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231224s2017 xx |||||o 00| ||eng c |
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|a 10.1016/j.plaphy.2016.11.022
|2 doi
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|a pubmed25n0889.xml
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|a (DE-627)NLM266799000
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|a (NLM)27915172
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|a (PII)S0981-9428(16)30453-3
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|a DE-627
|b ger
|c DE-627
|e rakwb
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| 041 |
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|a eng
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| 100 |
1 |
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|a Skupień, Joanna
|e verfasserin
|4 aut
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| 245 |
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|a Dark-chilling induces substantial structural changes and modifies galactolipid and carotenoid composition during chloroplast biogenesis in cucumber (Cucumis sativus L.) cotyledons
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|c 2017
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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 01.05.2017
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|a Date Revised 30.09.2020
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2016 Elsevier Masson SAS. All rights reserved.
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|a Plants in a temperate climate are often subject to different environmental factors, chilling stress among them, which influence the growth especially during early stages of plant development. Chloroplasts are one of the first organelles affected by the chilling stress. Therefore the proper biogenesis of chloroplasts in early stages of plant growth is crucial for undertaking the photosynthetic activity. In this paper, the analysis of the cotyledon chloroplast biogenesis at different levels of plastid organization was performed in cucumber, one of the most popular chilling sensitive crops. Influence of low temperature on the ultrastructure was manifested by partial recrystallization of the prolamellar body, the formation of elongated grana thylakoids and a change of the prolamellar body structure from the compacted "closed" type to a more loose "open" type. Structural changes are strongly correlated with galactolipid and carotenoid content. Substantial changes in the galactolipid and the carotenoid composition in dark-chilled plants, especially a decrease of the monogalactosyldiacylglycerol to digalactosyldiacylglycerol ratio (MGDG/DGDG) and an increased level of lutein, responsible for a decrease in membrane fluidity, were registered together with a slower adaptation to higher light intensity and an increased level of non-photochemical reactions. Changes in the grana thylakoid fluidity, of their structure and photosynthetic efficiency in developing chloroplasts of dark-chilled plants, without significant changes in the PSI/PSII ratio, could distort the balance of photosystem rearrangements and be one of the reasons of cucumber sensitivity to chilling
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|a Journal Article
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|a Chilling stress
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| 650 |
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|a Chloroplast biogenesis
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| 650 |
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|a Cotyledons
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|a Galactolipids
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| 650 |
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|a Photosynthesis
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| 650 |
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|a Thylakoids
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| 650 |
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|a Galactolipids
|2 NLM
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| 650 |
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|a Photosystem II Protein Complex
|2 NLM
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| 650 |
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|a digalactosyldiacylglycerol
|2 NLM
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| 650 |
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|a monogalactosyldiacylglycerol
|2 NLM
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| 650 |
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|a Chlorophyll
|2 NLM
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| 650 |
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|a 1406-65-1
|2 NLM
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| 650 |
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|a Carotenoids
|2 NLM
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| 650 |
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7 |
|a 36-88-4
|2 NLM
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| 700 |
1 |
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|a Wójtowicz, Joanna
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Kowalewska, Łucja
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Mazur, Radosław
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Garstka, Maciej
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Gieczewska, Katarzyna
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Mostowska, Agnieszka
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Plant physiology and biochemistry : PPB
|d 1991
|g 111(2017) vom: 27. Feb., Seite 107-118
|w (DE-627)NLM098178261
|x 1873-2690
|7 nnas
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| 773 |
1 |
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|g volume:111
|g year:2017
|g day:27
|g month:02
|g pages:107-118
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|u http://dx.doi.org/10.1016/j.plaphy.2016.11.022
|3 Volltext
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|d 111
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|h 107-118
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