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231225s2022 xx |||||o 00| ||eng c |
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|a 10.1016/j.plaphy.2022.02.009
|2 doi
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|a pubmed24n1123.xml
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|a (DE-627)NLM337148074
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|a (NLM)35182963
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|a (PII)S0981-9428(22)00067-5
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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 Scartazza, Andrea
|e verfasserin
|4 aut
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|a Photosynthesizing while hyperaccumulating nickel
|b Insights from the genus Odontarrhena (Brassicaceae)
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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
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|2 rdacarrier
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|a Date Completed 08.03.2022
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|a Date Revised 08.03.2022
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2022 Elsevier Masson SAS. All rights reserved.
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|a Nickel-induced changes in photosynthetic activity were investigated in three Ni-hyperaccumulating Odontarrhena species with increasing Ni tolerance and accumulation capacity, O. muralis, O. moravensis, and O. chalcidica. Plantlets were grown in hydroponics at increasing NiSO4 concentrations (0, 0.25, and 1 mM) for one week, and the effects of Ni on growth, metal accumulation, photosynthesis, and nitrogen (N) allocation to components of the photosynthetic apparatus were analysed. Nickel treatments in O. chalcidica, and O. moravensis to a lesser extent, increased not only the photochemical efficiency of photosystem II (PSII) and the CO2 assimilation rate, but also CO2 diffusion from the atmosphere to the carboxylation sites. These two species displayed a specific increase and/or rearrangement of the photosynthetic pigments and a higher leaf N allocation to the photosynthetic components in the presence of the metal. Odontarrhena muralis displayed a decrease in photosynthetic performance at the lowest Ni concentration due to a combination of both stomatal and non-stomatal limitations. Our data represent the first complete investigation of the effects of Ni on the photosynthetic machinery in Ni hyperaccumulating plants. Our findings clearly indicate a stimulatory, hormetic-like, effect of the metal on both biophysics and biochemistry of photosynthesis in the species with the highest hyperaccumulation capacity
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|a Journal Article
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|a CO(2) diffusion limitations
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|a Chlorophyll fluorescence
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|a Gas exchanges
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|a N partitioning
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|a Photosynthetic N-Use efficiency
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|a Photosynthetic pigments
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|a Photosystem II Protein Complex
|2 NLM
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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 Nickel
|2 NLM
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| 650 |
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|a 7OV03QG267
|2 NLM
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| 700 |
1 |
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|a Di Baccio, Daniela
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Mariotti, Lorenzo
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Bettarini, Isabella
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Selvi, Federico
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Pazzagli, Luigia
|e verfasserin
|4 aut
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| 700 |
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|a Colzi, Ilaria
|e verfasserin
|4 aut
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| 700 |
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|a Gonnelli, Cristina
|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 176(2022) vom: 01. Apr., Seite 9-20
|w (DE-627)NLM098178261
|x 1873-2690
|7 nnns
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| 773 |
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|g volume:176
|g year:2022
|g day:01
|g month:04
|g pages:9-20
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|u http://dx.doi.org/10.1016/j.plaphy.2022.02.009
|3 Volltext
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