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231224s2017 xx |||||o 00| ||eng c |
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|a 10.1016/j.jplph.2016.11.015
|2 doi
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|a pubmed24n0895.xml
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|a (DE-627)NLM268508038
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|a (NLM)28142095
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|a (PII)S0176-1617(17)30013-5
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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 Paredes, Miriam
|e verfasserin
|4 aut
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|a Chilling stress and hydrogen peroxide accumulation in Chrysanthemum morifolium and Spathiphyllum lanceifolium. Involvement of chlororespiration
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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 26.06.2017
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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 © 2017 Elsevier GmbH. All rights reserved.
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|a Plants of Chrysanthemum morifolium (sun species) and Spathiphyllum lanceifolium (shade species) were used to study the effects of chilling stems under high illumination. The stress conditions resulted in a greater accumulation of H2O2 in C. morifolium than in S. lanceifolium, and in the down-regulation of photosynthetic linear electron transport in both species. However, only a slight decrease in the maximal quantum yield of PSII was observed under unfavorable conditions in both species, suggesting that mechanisms exist in the chloroplasts that dissipate excess excitation energy and prevent damage to the photosynthetic apparatus. Additionally, changes were observed in the PGR5 polypeptide involved in cyclic electron flow around PSI and in chlororespiratory enzymes (plastidial NDH complex and PTOX). The level of PGR5 increased significantly only in chilled plants of C. morifolium, whereas the levels of the PTOX and NDH-H polypeptide of the plastidial NDH complex and the NDH activity increased significantly only in chilled plants of S. lanceifolium. These findings suggest that the cyclic electron flow involving PGR5 is more active in C. morifolium, while in S. lanceifolium, other mechanisms involving chlororespiratory enzymes are stimulated in response to chilling and high light, resulting in less H2O2 being accumulated in leaves
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|a Journal Article
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|a Chrysanthemum morifolium
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|a NDH complex
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|a PGR5
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|a PTOX
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|a Photosynthesis
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|a Spathiphyllum lanceifolium
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|a Peptides
|2 NLM
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|a Photosystem II Protein Complex
|2 NLM
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|a NAD
|2 NLM
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|a 0U46U6E8UK
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|a Chlorophyll
|2 NLM
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|a 1406-65-1
|2 NLM
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|a Hydrogen Peroxide
|2 NLM
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|a BBX060AN9V
|2 NLM
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|a Quinone Reductases
|2 NLM
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|a EC 1.6.99.-
|2 NLM
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| 650 |
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|a sulfide quinone reductase
|2 NLM
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|a EC 1.8.5.-
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|a Plastoquinone
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| 650 |
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| 700 |
1 |
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|a Quiles, María José
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of plant physiology
|d 1979
|g 211(2017) vom: 01. Apr., Seite 36-41
|w (DE-627)NLM098174622
|x 1618-1328
|7 nnns
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| 773 |
1 |
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|g volume:211
|g year:2017
|g day:01
|g month:04
|g pages:36-41
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|u http://dx.doi.org/10.1016/j.jplph.2016.11.015
|3 Volltext
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