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231225s2021 xx |||||o 00| ||eng c |
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|a 10.1111/nph.17445
|2 doi
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|a pubmed24n1083.xml
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|a (DE-627)NLM325118329
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|a (NLM)33959976
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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 Nadal, Miquel
|e verfasserin
|4 aut
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|a Differences in biochemical, gas exchange and hydraulic response to water stress in desiccation tolerant and sensitive fronds of the fern Anemia caffrorum
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|c 2021
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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 21.07.2021
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|a Date Revised 21.07.2021
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2021 The Authors New Phytologist © 2021 New Phytologist Foundation.
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|a Desiccation tolerant plants can survive extreme water loss in their vegetative tissues. The fern Anemia caffrorum produces desiccation tolerant (DT) fronds in the dry season and desiccation sensitive (DS) fronds in the wet season, providing a unique opportunity to explore the physiological mechanisms associated with desiccation tolerance. Anemia caffrorum plants with either DT or DS fronds were acclimated in growth chambers. Photosynthesis, frond structure and anatomy, water relations and minimum conductance to water vapour were measured under well-watered conditions. Photosynthesis, hydraulics, frond pigments, antioxidants and abscisic acid contents were monitored under water deficit. A comparison between DT and DS fronds under well-watered conditions showed that the former presented higher leaf mass per area, minimum conductance, tissue elasticity and lower CO2 assimilation. Water deficit resulted in a similar induction of abscisic acid in both frond types, but DT fronds maintained higher stomatal conductance and upregulated more prominently lipophilic antioxidants. The seasonal alternation in production of DT and DS fronds in A. caffrorum represents a mechanism by which carbon gain can be maximized during the rainy season, and a greater investment in protective mechanisms occurs during the hot dry season, enabling the exploitation of episodic water availability
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Anemia caffrorum
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|a desiccation tolerance
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|a hydraulic conductance
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|a lipophilic antioxidants
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|a photosynthesis
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|a pigments
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|a water relations
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|a Water
|2 NLM
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|a 059QF0KO0R
|2 NLM
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| 700 |
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|a Brodribb, Tim J
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Fernández-Marín, Beatriz
|e verfasserin
|4 aut
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| 700 |
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|a García-Plazaola, José I
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Arzac, Miren I
|e verfasserin
|4 aut
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| 700 |
1 |
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|a López-Pozo, Marina
|e verfasserin
|4 aut
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| 700 |
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|a Perera-Castro, Alicia V
|e verfasserin
|4 aut
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| 700 |
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|a Gulías, Javier
|e verfasserin
|4 aut
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| 700 |
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|a Flexas, Jaume
|e verfasserin
|4 aut
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| 700 |
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|a Farrant, Jill M
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t The New phytologist
|d 1979
|g 231(2021), 4 vom: 15. Aug., Seite 1415-1430
|w (DE-627)NLM09818248X
|x 1469-8137
|7 nnns
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| 773 |
1 |
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|g volume:231
|g year:2021
|g number:4
|g day:15
|g month:08
|g pages:1415-1430
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|u http://dx.doi.org/10.1111/nph.17445
|3 Volltext
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|d 231
|j 2021
|e 4
|b 15
|c 08
|h 1415-1430
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