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231224s2017 xx |||||o 00| ||eng c |
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|a 10.1016/j.jplph.2016.12.002
|2 doi
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|a pubmed24n0890.xml
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|a (DE-627)NLM267225083
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|a (NLM)27987432
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|a (PII)S0176-1617(16)30272-3
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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 Mlinarić, Selma
|e verfasserin
|4 aut
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|a Differential accumulation of photosynthetic proteins regulates diurnal photochemical adjustments of PSII in common fig (Ficus carica L.) leaves
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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 GmbH. All rights reserved.
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|a Molecular processes involved in photosystem II adaptation of woody species to diurnal changes in light and temperature conditions are still not well understood. Regarding this, here we investigated differences between young and mature leaves of common fig (Ficus carica L.) in photosynthetic performance as well as accumulation of the main photosynthetic proteins: light harvesting complex II, D1 protein and Rubisco large subunit. Investigated leaf types revealed different adjustment mechanisms to keep effective photosynthesis. Rather stable diurnal accumulation of light harvesting complex II in mature leaves enabled efficient excitation energy utilization (negative L-band) what triggered faster D1 protein degradation at high light. However, after photoinhibition, greater accumulation of D1 during the night enabled them faster recovery. So, the most photosynthetic parameters, as the maximum quantum yield for primary photochemistry, electron transport and overall photosynthetic efficiency in mature leaves successfully restored to their initial values at 1a.m. Reduced connectivity of light harvesting complexes II to its reaction centers (positive L-band) in young leaves increased dissipation of excess light causing less pressure to D1 and its slower degradation. Decreased electron transport in young leaves, due to reduced transfer beyond primary acceptor QA- most probably additionally induced degradation of Rubisco large subunit what consequently led to the stronger decrease of overall photosynthetic efficiency in young leaves at noon
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|a Journal Article
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|a L-band
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|a OJIP
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|a Performance index
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|a Photoinhibition
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|a Photosystem II
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|a Photosystem II Protein Complex
|2 NLM
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|a Plant Proteins
|2 NLM
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| 650 |
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|a Chlorophyll
|2 NLM
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|a 1406-65-1
|2 NLM
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| 650 |
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|a Chlorophyll A
|2 NLM
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| 650 |
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|a YF5Q9EJC8Y
|2 NLM
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| 700 |
1 |
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|a Antunović Dunić, Jasenka
|e verfasserin
|4 aut
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| 700 |
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|a Skendrović Babojelić, Martina
|e verfasserin
|4 aut
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| 700 |
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|a Cesar, Vera
|e verfasserin
|4 aut
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| 700 |
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|a Lepeduš, Hrvoje
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of plant physiology
|d 1979
|g 209(2017) vom: 13. Feb., Seite 1-10
|w (DE-627)NLM098174622
|x 1618-1328
|7 nnns
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| 773 |
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|g volume:209
|g year:2017
|g day:13
|g month:02
|g pages:1-10
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|u http://dx.doi.org/10.1016/j.jplph.2016.12.002
|3 Volltext
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